Torsional, Shear, Tensile, Or Compression Patents (Class 702/43)
  • Patent number: 10564083
    Abstract: The present disclosure describes methods and systems for analyzing drilling fluid rheology at a drilling site. One method includes obtaining, from a wellbore drilling system implementing a wellbore drilling operation at a wellbore drilling site, a sample of a drilling fluid being used in the wellbore drilling operation at the wellbore drilling site; flowing the sample through an elongated tubular member at a plurality of different flow rates, the elongated tubular member installed at the wellbore drilling site; measuring, at the wellbore drilling site and at each flow rate, a stress-strain response of the sample in response to each flow rate; generating a plurality of stress-strain responses for the sample at the corresponding plurality of different flow rates, the plurality of stress-strain responses including each stress-strain response of the sample measured at each flow rate; and returning the sample to the wellbore drilling operation.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: February 18, 2020
    Assignee: Saudi Arabian Oil Company
    Inventor: Hermann F. Spoerker
  • Patent number: 10436657
    Abstract: A method for determining an axial tensile force applied to a component, includes fastening the component in place and applying axial tensile force to the component from a free end of the component by a loading device, having a loading body with a central axial main threaded bore and a plurality of secondary threaded bores distributed evenly along the circumference and having loading screws, which are screwed into the secondary threaded bores. The loading body is screwed onto the free end of the component and the loading screws are loaded against a stationary abutment in the direction of the fastening. The axial tensile force applied to the component is determined. Deformation of the loading body transverse to the axial direction of the loading body is sensed and the axial tensile force applied to the component is determined from the deformation of the loading body.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: October 8, 2019
    Assignee: Nord-Lock Switzerland GmbH
    Inventors: Peter Kury, Dirk Hänsel
  • Patent number: 10345172
    Abstract: Provided is an apparatus for measuring axial force and frictional torque of a threaded part, including: a fastening member having a threaded hole through which an external threaded part passes, and coming into contact with a head of the external threaded part fitted into the threaded hole; a support body supporting the fastening member; an internal threaded part engaging with an external threaded part fitted into the fastening member and spaced apart from the fastening member; a load cell fixedly supporting the internal threaded part and measuring axial load and frictional torque that are transmitted from the external threaded part to the internal threaded part; and a torque application unit applying torque to the external threaded part.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: July 9, 2019
    Assignee: E-cube System Inc.
    Inventor: Sung Fie Seok
  • Patent number: 10201940
    Abstract: A computer implemented apparatus and method for receiving tool paths that a dispensing head follows to deposit roads of material for successively building object layers of a 3D object during an additive manufacturing process, generating simulated object layers of a simulated 3D object from the tool paths, wherein the simulated object layers represent an interior geometry of each one of the object layers, determining a contact surface area between adjacent ones of the simulated object layers, and determining a predicted mechanical property of the 3D object from the contact surface area and a material property of the material.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: February 12, 2019
    Assignee: The Boeing Company
    Inventors: Michael W. Hayes, Loren J. Strahm, Nathanial C. Cuddy, Daniel E. Muntges
  • Patent number: 10190954
    Abstract: A composite test coupon includes a plurality of plies. The plurality of plies include first ply layers and second ply layers. The first ply layers have first fibers and a substantially uniform matrix material associated with the first fibers. The second ply layers have second fibers and a pre-stressed matrix material associated with the second fibers. The first fibers are oriented in a first direction, and the second fibers are oriented in a second direction that is different from the first direction. The pre-stressed matrix material includes stress induced cracks between the second fibers of each of the second ply layers.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: January 29, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Jack J. Esposito, Samuel J. Tucker
  • Patent number: 10088374
    Abstract: A reversible force measuring device for ascertaining the magnitude and/or direction of an applied load and having a cavity containing an indicating material such as a fluid, with the cavity configured such that when a load is applied to the device, it causes a reversible volumetric change to the cavity. This change causes the indicating material to move in or out of the cavity in a quantity which corresponds to the magnitude and/or direction of the applied load. By measuring the movement of the indicating material, a user can determine the magnitude and/or direction of the applied load. The device may include a component which generates an electrical signal from the measured movement and transmits this signal to another device to control the tensioning of one or more fastener components and or make other analytical measurements by combining this measurement with other measurements like torque and or angle.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: October 2, 2018
    Inventor: Geoffrey K Rowe
  • Patent number: 9528899
    Abstract: A tire pressure decrease detection apparatus comprising: rotation speed information detection means, rotation acceleration information calculation means, resonance frequency estimate means for time-series estimating a torsional resonance frequency of the rotation speed information, correlation calculation means for, regarding front and rear right wheels and front and rear left wheels, respectively calculating time series correlations of the rotation acceleration information, and judgment means for judging a decrease in pressure of the tires based on the estimated torsional resonance frequency. In a case where the correlations exceed predetermined threshold values, the resonance frequency estimate means takes that a periodic noise from a road surface is generated in the vicinity of the torsional resonance frequency and stops estimating the torsional resonance frequency of the front and rear wheels of the side exceeding the threshold value.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: December 27, 2016
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Mitsuhiro Wada
  • Patent number: 9415641
    Abstract: Disclosed are a method and a system for monitoring the pressure of a tire. The system measures frequencies of multiple tires mounted on the vehicle, sets a first average frequency for a normal pressure state and a second average frequency for determination of a low pressure state, wherein the first average frequency is calculated by accumulating the measured frequencies for each speed interval in a stop mode and the second average frequency is calculated by accumulating the measured frequencies for each speed interval in a driving mode, calculates low-pressure probabilities for each speed interval of the tire by using the second frequency, a predetermined low-pressure reference frequency, and a predetermined frequency determination interval for determining low-pressure, and determines whether each tire is at low pressure state by aggregating the low-pressure probabilities for each speed interval of the tire.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: August 16, 2016
    Assignee: HYUNDAI AUTRON CO., LTD.
    Inventors: Seung-Hwan Shin, Tae-Hun Kim
  • Patent number: 9335196
    Abstract: A method for operating a Coriolis mass flow measuring device having at least one measuring pipe through which a medium flows, at least one vibration generator, at least a first vibration sensor, at least a second vibration sensor and at least a control and analyzing unit. The detection of measurement variables or diagnosis parameters is achieved with increased accuracy and security in that the control and analyzing unit calculates, at least indirectly and in a ratiometric manner, at least a derived secondary variable based on a primary measurement, wherein interested primary measurement signals are transmitted alternately to the control and analyzing unit via different measurement channels and wherein, based on the various values obtained from the different measurement channels regarding the primary measurement signals, compensation values of the transmitted primary measurement signals are calculated and used as a basis for the calculation of the derived secondary variable.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: May 10, 2016
    Assignee: KROHNE Messtechnik GmbH
    Inventors: Kourosh Kolahi, Ralf Storm, Andreas Poremba
  • Patent number: 9242356
    Abstract: The present disclosure relates to an electronic torque tool, a calibration fixture, and a method for calibrating the electronic torque tool. The calibration includes applying a torque to the torque wrench and releasing the applied torque once the applied torque reaches a full scale calibration torque. The calibration fixture holds and displays a peak value of the applied torque and the torque wrench holds and displays a measured peak value of the applied torque. The measured peak value on the torque wrench may then be adjusted, by incrementing or decrementing the displayed value, to match the peak value displayed on the calibration fixture.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: January 26, 2016
    Assignee: Snap-on Incorporated
    Inventors: Jerry A. King, Chris Lawton, Duane A. Vallejos
  • Patent number: 8990028
    Abstract: According to exemplary embodiments of the present invention, using a fracture limit stress line obtained by converting a hole expansion ratio into a stress as a criterion for a fracture, the risk of fracture in a material can be evaluated quantitatively by comparing the relationship between data obtained from a numerical analysis using a finite element method and the fracture limit stress line. Thus, when determining a fracture limit in a stretch flange portion in a thin plate in a process including one or more deformation path variations, it is possible to obtain the fracture limit curve easily and efficiently and predict the fracture with high accuracy, and the risk of fracture upon press forming or crash can be evaluated.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: March 24, 2015
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Shigeru Yonemura, Akihiro Uenishi, Shunji Hiwatashi, Hiroshi Yoshida, Tohru Yoshida
  • Publication number: 20150066394
    Abstract: The invention relates to an arrangement and to a method for the synchronous determination of the shear modulus and of the Poisson's number on samples of elastically isotropic and anisotropic materials. In the arrangement, an indenter is movable in parallel with its longitudinal axis (A) in the direction of the surface of a sample such that a force action is exerted on the material by its tip. The force can be determined by a device for measuring this force and the indenter is additionally deflected in translation along at least one further axis. The longitudinal axis (A) of the indenter is aligned at an angle ?90° with respect to the surface of the sample and the indenter carries out an upward movement and a downward movement.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Kong Boon YEAP, Malgorzata KOPYCINSKA-MUELLER, Ehrenfried ZSCHECH, Martin GALL
  • Patent number: 8942462
    Abstract: A method to automatically quantify dendrite arm spacing in dendritic microstructures. Once a location of interest in a cast material specimen has been identified, the information contained in it is automatically analyzed to quantify dendrite cell size information that is subsequently converted into a quantified dendrite arm spacing through an empirical relationship or a theoretical relationship. In one form, the relationship between DCS and DAS is such that the DAS in dendritic structure of cast aluminum alloys may be automatically determined from the measurement of one or more of dendrite cell size and the actual volume fraction of the eutectic phases in the local casting microstructure. Non-equilibrium conditions may be accounted for in situations where a theoretical volume fraction of a eutectic phase of the alloy in equilibrium condition is appropriately modified.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: January 27, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Qigui Wang, James W. Knight
  • Publication number: 20150012153
    Abstract: Systems and methods for a tire/runway friction property estimation method based on measured wheel speed, calculated acceleration, wheel reference and tire normal force estimation are disclosed. Based on the resulting estimations, a map and/or function of position for the friction properties may be formed and transmitted to external systems after an aircraft stop is completed.
    Type: Application
    Filed: August 15, 2013
    Publication date: January 8, 2015
    Applicant: GOODRICH CORPORATION
    Inventors: RICHARD PAUL METZGER, JR., RICHARD KOLK
  • Patent number: 8855933
    Abstract: Systems and methods for determining the bending moment and shear force of tubing and casing when the tubing buckles and contacts the casing.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: October 7, 2014
    Assignee: Landmark Graphics Corporation
    Inventor: Robert F. Mitchell
  • Publication number: 20140207391
    Abstract: A torque socket structure contains a body including a connecting hole for connecting with a torque wrench and a driving orifice for driving nuts or screws, wherein the driving orifice communicates with the connecting hole, the body includes a stepped difference formed between the connecting hole and the driving orifice, and a thickness between the body and the connecting hole is greater than a thickness between the body and the driving orifice; a digital detecting mechanism including a torsion strain gage fixed on a predetermined section of the outer wall of the body which corresponds to the driving orifice, a processing unit electrically connecting with the torsion strain gage so as to receive and calculate torque value detected by the torsion strain gage, a display unit electrically connecting with the processing unit so as to display torque value calculated by the processing unit.
    Type: Application
    Filed: January 21, 2013
    Publication date: July 24, 2014
    Inventor: Wei-Ning HSIEH
  • Patent number: 8788221
    Abstract: A cable pull calculator may be provided. First, wire number data, a wire type, and size data may be received. Next, a minimum conduit size for the conduit maybe calculated based upon the received wire number data indicating the number of wires to be placed in the conduit and the received size data corresponding to each of the wires to be placed in the conduit. Then, the calculated minimum conduit size may be displayed. Next, a first desired conduit size, a conduit type, and pull information indicating a course of the conduit may be received. Then, for each of the plurality of segments, a tension value and a sidewall pressure value may be calculated based at least on the conduit type, the first desired conduit size, the received wire type, and the received size data. The calculated tension value and the calculated sidewall pressure value may then be displayed.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: July 22, 2014
    Assignee: Southwire Company
    Inventor: Allen Hooper
  • Patent number: 8746049
    Abstract: A creep indication system and a method for determining a creep amount are disclosed. The system includes a first creep indicating member on a first rotating component and a second creep indicating member on a second rotating component. The second creep indicating member has at least one different creep characteristic from the first creep indicating member. The system further includes at least one measurement device configured to measure a change in radial position of at least one of the first creep indicating member or the second creep indicating member. The method includes measuring a first creep amount of a first creep indicating member and measuring a second creep amount of a second creep indicating member. The method further includes estimating a temperature of a rotating component using the first creep amount and the second creep amount.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: June 10, 2014
    Assignee: General Electric Company
    Inventors: Fred Thomas Willett, Jr., Paul Stephen DiMascio
  • Patent number: 8692706
    Abstract: A sensor device for measuring the compression travel and/or the compression rate of wheels and/or axles of vehicles, in particular of commercial vehicles, may include at least one sensor measuring in a contactless manner. The sensor device may include a radar and/or high-frequency sensor generating a beam, which is emitted and received after reflection at a reference and reflection surface.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: April 8, 2014
    Assignee: Knorr-Bremse Systeme fuer Nutzfahrzeuge GmbH
    Inventor: Falk Hecker
  • Patent number: 8678943
    Abstract: This invention is an apparatus and method for measuring or analyzing a golf swing. Measurement or analysis is made relative to energy generation and transfer through a player's body and club. The measurement or analysis data is principally obtained from the player's ground-reaction forces. Processed signals are analyzed with an artificial intelligence system. Ground-reaction forces relate to reaction forces which occur between a standing surface and the player's feet. The apparatus and method measures or analyses a golf swing in an automatic manner or in an automatic and interactive manner.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: March 25, 2014
    Inventor: Brian Francis Mooney
  • Publication number: 20140052388
    Abstract: A “semi-automated” device, method and/or system for the determination of line sag in a tensioned (e.g., power) line is described. A prescribed number of waves based on the waves required by a given sag-tension chart is input. After the device is directly or indirectly attached onto the line, the user then induces a wave on the line either by pulling/striking the tensioned line. The device automatically measures the acceleration/inflection of the passing waves and the time of arrival of waves, as well as ambient temperature, and signaling the user upon completion of the measurement. These recorded values can be used to determine the actual sag of the tensioned line, thus avoiding the current error-prone approach of using a manual stopwatch and visual deflection of the waves.
    Type: Application
    Filed: April 5, 2013
    Publication date: February 20, 2014
    Inventors: Andrew E. Mahlen, Ali Thamir Alniemi, Bryan C. King
  • Publication number: 20140046602
    Abstract: A tire pressure decreased detection apparatus comprising rotation speed information detection means, rotation acceleration information calculation means, resonance frequency estimate means for time-series estimating a torsional resonance frequency of the rotation speed information, correlation calculation means for, regarding left and right wheels of driving wheels, calculating a time series correlation of the rotation acceleration information of the left and right wheels, and determination means for determining a decrease in pressure of the tires based on the estimated torsional resonance frequency. In a case where the correlation exceeds a predetermined threshold value, the resonance frequency estimate means stops estimating the torsional resonance frequency.
    Type: Application
    Filed: March 7, 2013
    Publication date: February 13, 2014
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Mitsuhiro WADA
  • Patent number: 8620599
    Abstract: A membrane tension measuring apparatus comprises: a rectangular frame (5) adapted to be abuttable on a surface (4) of a membrane (2) to which tension (Tx, Ty) is applied; an acoustic wave generator (17) operable to emit an acoustic wave (16) toward a part (2a) of the membrane (2) surrounded by the frame (5); a vibration detector (24) operable to detect vibration which is induced in the part (2a) of the membrane (2) by the emitted acoustic wave (16); and a processor (29) operable to calculate the tension (Tx, Ty) based on vibration data detected by the vibration detector (24). Each of the acoustic wave generator (17), the vibration detector (24) and the processor (29) is mounted to the frame (5).
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: December 31, 2013
    Assignees: National University Corporation Nagoya University, Taiyo Kogyo Corporation
    Inventors: Hiroshi Ohmori, Sang-Wook Jin, Nobuhiko Ishizu, Fumiyoshi Takeda, Jun Fujiwara
  • Publication number: 20130345992
    Abstract: A method of determining the breaking stress in shear for a part of determined thickness and made up of two elements that are bonded together by a layer of adhesive. A plane sensor emits an ultrasound wave at the part of determined thickness. The plane sensor receives a reflected signal made up of a plurality of successive echoes. A processor unit calculates a fast Fourier transform of the reflected signal. A Gaussian envelope connecting together the peaks of all of the resonances of the fast Fourier transform is determined. A frequency at which the Gaussian envelope is at a maximum is determined. The breaking stress from a predetermined correspondence relationship between the frequency of the maximum of the Gaussian envelope and the breaking stress is determined.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 26, 2013
    Inventor: Jean-Yves Francois Roger CHATELLIER
  • Publication number: 20130319131
    Abstract: A method of improving processing of polyethylene resins comprising obtaining a plurality of multimodal metallocene-catalyzed polyethylene samples measuring the shear stress as a function of shear rate for the plurality of multimodal metallocene-catalyzed polyethylene samples using capillary rheometry wherein the measuring yields values for a magnitude of slip-stick, a stress for smooth to matte transition, and a shear rate for smooth to matte transition; and identifying from the plurality of multimodal metallocene-catalyzed polyethylene samples individual multimodal metallocene-catalyzed polyethylene resins having a reduced tendency to melt fracture characterized by a magnitude of slip-stick greater than about 300 psi, a stress for smooth to matte transition greater than about 90 kPa, and a shear rate for smooth to matte transition greater than about 10 s?1.
    Type: Application
    Filed: October 25, 2012
    Publication date: December 5, 2013
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Yongwoo Inn, Paul J. Deslauriers, Qing Yang, Ashish M. Sukhadia, David C. Rohlfing
  • Patent number: 8589121
    Abstract: When discretizing an analysis target part into plural elements and performing analysis, sheet thickness reduction rate or maximum principal strain at an equivalent position including a same element is compared by either a manner of combining two adjacent elements after the analysis or a manner of changing an element discretization size with two types and performing the analysis, and the element where the difference is large is extracted as a fracture risk portion. With this structure, a fracture risk portion can be extracted reliably when a fracture is predicted by a finite element method.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: November 19, 2013
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Akihiro Uenishi, Takashi Ariga, Shigeru Yonemura, Jun Nitta, Tohru Yoshida
  • Patent number: 8583383
    Abstract: A bolt-axial-force measuring method and instrument capable of easily and precisely measuring an axial force of a bolt are provided. The bolt is screw-joined and coupled to a piston of a bolt tensioner, and a hydraulic pressure is supplied to its pressure chamber so that the bolt is elongated by applying a tensile force equal to or more than a necessary bolt-fastening force. A nut separating from a fastened member due to the elongation of the bolt is seated again on the fastened member, and the hydraulic pressure in the pressure chamber is discharged to release the tensile force of the bolt.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: November 12, 2013
    Inventors: Atsushi Imai, Tooru Imai
  • Patent number: 8577627
    Abstract: A hydraulic operated system for testing cable under variable tensions and speeds with a lower input horsepower requirement. The system can include storage reels in series with multiple moveable sheaves. A moveable tensioning moveable sheave can be in series with the multiple moveable sheaves for receiving cable and for measuring load and speed of the cable using sensors. The system can include clutches and a clutch controller. The measured load and speed can be transmitted to a processor which can perform calculations and comparisons thereon, and can transmit related notifications to client devices through a network.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: November 5, 2013
    Assignee: Dynacon, Inc.
    Inventors: Joe R. Janac, James H. Stasny
  • Patent number: 8566042
    Abstract: A system for measuring forces from a rotating object is presented. In one aspect, the measurement system has a plurality of strain sensors that are configured to attach to the sidewall of a tire of a vehicle and measure the strain on the sidewall. The system can also have a data processor to relate the strain on the sidewall to the normal force exerted on the driving surface from the tire.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: October 22, 2013
    Assignee: Southern Research Institute
    Inventors: Percy Wang, Daniel Duke
  • Patent number: 8566041
    Abstract: A method of determining face paper properties of all types of wallboard including providing a core strength value of the wallboard, determining a required nail pull value based the wallboard specifications and calculating a face paper stiffness value based on the provided core strength value and the determined nail pull value. The method includes displaying the calculated face paper stiffness value on a display device.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: October 22, 2013
    Assignee: United States Gypsum Company
    Inventor: Alfred Li
  • Publication number: 20130275060
    Abstract: An arcuate metal element for detecting a rotary force and generating a deformation in response thereto.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 17, 2013
    Inventors: Josiah Rosmarin, Ben Berkowitz
  • Publication number: 20130238257
    Abstract: A device includes a first sensor and a second sensor. The first sensor is configured to generate a first signal corresponding to a detected first force. The second sensor is configured to generate a second signal corresponding to a detected second force. The first force and the second force has a substantially common direction. The device includes a processor configured to determine a measure of tension using the first signal and using the second signal. The measure of tension corresponds to displacement of an elongate member.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 12, 2013
    Inventors: Rajesh Rajamani, Kalpesh Singal
  • Patent number: 8527218
    Abstract: The different advantageous embodiments provide a method and apparatus for inspecting a structure. In one advantageous embodiment, an electromagnetic force is generated on a portion of a bond line for a plurality of parts in the structure. The structure contains a conductive material. A determination is made as to whether an inconsistency is present in the portion of the bond line after generating the electromagnetic force on the portion of the bond line.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: September 3, 2013
    Assignee: The Boeing Company
    Inventors: Gary Ernest Georgeson, Richard Henry Bossi, Jeffrey Reyner Kollgaard
  • Publication number: 20130218348
    Abstract: A comprehensive mixer performance estimation method that can be applied to each of the mixers of the rotor-stator type having the various configurations and circulation modes is provided. In accordance with the mixer performance estimation method of the present invention, the total energy dissipation rate ?a for the mixers of the rotor-stator type may be obtained, the respective sizes of the rotor-stator and the powers and flow rates during the mixer's running time may be measured, the magnitude of the values for the configuration dependent term for the entire mixer that are specific to each of the mixers and are obtained by measuring the size of the rotor-stator and the powers and flow rates during the mixer's running time may be estimated, and the mixer's performance may be estimated.
    Type: Application
    Filed: August 19, 2011
    Publication date: August 22, 2013
    Applicant: Meiji Co., Ltd.
    Inventor: Tetsu Kamiya
  • Patent number: 8515688
    Abstract: A system to predict a fatigue life of an aluminum alloy is disclosed herein. The system comprises a computer-readable medium cooperative with micromechanics-based fatigue life models for cyclic multiaxial loading. The fatigue life models predict the fatigue life by processing information received by the system relating to the aluminum alloy and the stress state present in the aluminum alloy. The received information comprises at least one of: a critical shear plane, a damage factor, a hardening factor defined by at least one of a plurality of uniaxial cyclic hardening factor parameters related to probabilistics of defects and microstructure characteristics in the aluminum alloy, an additional hardening factor related to non-proportionality, and thermophysical and mechanical properties of the aluminum alloy.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: August 20, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Qigui Wang, Yucong Wang, Guoqiu He, Chengshu Chen, Zhengfei Hu, Xiaoshan Liu, Defeng Mo
  • Publication number: 20130211743
    Abstract: A method for measuring the deformation of a turbo-machine blade including: a step of positioning at least one accelerometer onto a local point of the turbo-machine blade; a first step of measuring the centrifugal force, by the accelerometer, at the local point of the turbo-machine blade along the given measurement direction at a first predetermined speed; a second step of measuring the centrifugal, at a second predetermined speed; a step of determining the angular displacement of the measurement direction of the accelerometer relative to the centrifugal direction as a function of the first acceleration measurement and the second acceleration measurement, said angular displacement corresponding to an angular deformation of the local point of the turbo-machine blade.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 15, 2013
    Applicant: SNECMA
    Inventor: SNECMA
  • Publication number: 20130211742
    Abstract: The mechanical load on a rolling element bearing is determined from the deformation of the rolling element bearing. The local deformation caused by the rolling contact forces is used to determine an average contribution to the mechanical load in order to average out the effect on the deformation as a result of the spread in diameter of the rolling elements of the bearing. The global deformation of the rolling element bearing is determined to calculate a dynamic contribution to the mechanical load. The dynamic contribution takes into account the variations of the mechanical load on the relevant time-scales that have been omitted from the average contribution as a result of the averaging operation. The total mechanical load is the sum of the average contribution and the dynamic contribution.
    Type: Application
    Filed: June 7, 2010
    Publication date: August 15, 2013
    Inventor: Hendrik Anne Mol
  • Patent number: 8504307
    Abstract: A machine diagnosing device includes a drive object driving force estimating unit for estimating drive object driving force based on a torque command value toward a servo motor which is acquired using a position command value, an elastic deformation error estimating unit for estimating an elastic deformation error of a ball screw with the drive object driving force, and a positional deviation calculating unit for calculating a positional deviation using a rotation position of the servo motor and the position of a table, and a machine damage diagnosing unit for diagnosing a machine damage by calculating a machine damage coefficient using the elastic deformation error and the positional deviation, comparing the obtained machine damage coefficient with a previously set threshold value, and diagnosing a damage state of the drive object.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: August 6, 2013
    Assignee: Okuma Corporation
    Inventor: Takashi Norihisa
  • Patent number: 8452549
    Abstract: An apparatus for detecting erroneous cable stripping includes an auxiliary bracket having a stripping blade coupled thereto to cut a part of a sheath of a cable to strip the cable, a sensor attached to the auxiliary bracket to sense bending deformation of the auxiliary bracket occurring when tensile force is applied to the cable to strip the cable, and a central processing unit configured to receive a signal sent in response to bending deformation of the auxiliary bracket and determine whether the cable has been stripped erroneously or not.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: May 28, 2013
    Assignee: KM Digitech Co., Ltd.
    Inventor: Sung Joo Lim
  • Patent number: 8438937
    Abstract: Sensors for outputting signals indicative of a rate of change of torque experienced by a magnetized member in response to a change in torque experienced by the member are described. Such sensors include at least one sense element capable of detecting a change in a magnetic parameter of a magnetized region of the member positioned proximate to the sense element in response to a change in torque applied to the member. Devices for detecting and/or measuring rates of changes in or of torque that employ one or more of these sensors are also described, as are various applications for such devices.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: May 14, 2013
    Inventors: Ivan J. Garshelis, Ryan J. Kari, Stijn P. L. Tollens
  • Patent number: 8428890
    Abstract: A system for measuring normal load and deflection of a material that includes a portable load deflection device and a method of using the same is disclosed. The system includes a support arm having a first end and a second end opposite said first end. The first end can be attached to a base surface. The support arm can provides at least three degrees of freedom of movement and includes at least one sensor for determining a position of the second end. A uniaxial load cell can be operably attached to the second end. The system can also include a processing system operable to receive position data and corresponding force data when the support arm is used to apply a non-normal compression force to the test surface. The data can be used to calculate normal force versus deflection data for the test surface.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: April 23, 2013
    Assignee: Old Dominion University Research Foundation
    Inventors: Sebastian Bawab, Stacie Ringleb, Manish G. Kalmegh
  • Patent number: 8423191
    Abstract: A cast iron brake caliper with improved fatigue life, and a process and process equipment for pre-stressing a cast iron brake caliper to provide improved fatigue life, is provided. In the process, a load is applied to a cast iron caliper, where the load is high enough to locally yield and plastically deform the cast iron material, but not high enough to cause material failure, such as cracking. Upon load removal, residual compressive stresses in the cast iron caliper lower the mid-point of the stress range the plastically-deformed region of the caliper sees during in-service use, and thereby lowers the peak stress seen in this region, increasing fatigue life. The process permits a cast iron brake caliper to be designed to use less material and thus fit within constrained wheel rim envelopes, without the need to resort to high cost materials or other alternative design strategies.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: April 16, 2013
    Assignee: Bendix Spicer Foundation Brake LLC
    Inventors: Ronald S. Plantan, Richard Lee Lantz, Jr.
  • Publication number: 20130046486
    Abstract: A method for determining a duty cycle in a pulse displacement system, includes generating an analog waveform indicative of an angular displacement of a reference wheel from a wheel; generating a pulse waveform of the analog waveform; generating a duty cycle waveform responsive to the generating of the pulse waveform; accumulating a first count of high states of the duty cycle waveform; accumulating a second count of low states of the duty cycle waveform; determining a first average for the first count and a second average for the second count; and calculating a duty cycle of the pulse waveform as a function of the first average and the second average. Also, the first count includes an additional high state over the low state.
    Type: Application
    Filed: August 18, 2011
    Publication date: February 21, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: John D. Pennell
  • Publication number: 20130024137
    Abstract: A torque sensor for a human-powered object includes a spindle connecting crank arms of the object. In one embodiment, the object can be a bicycle. The torque sensor further includes at least one strain gauge mounted to the spindle in a shear pattern to measure shear strain perpendicular to a radius of the spindle. In some embodiments, the torque sensor further includes a carrier fixed to a hollow interior of the spindle, where at least one strain gauge is mounted to the spindle via the carrier. Advantageously, the torque sensor provides a low cost method to measure power.
    Type: Application
    Filed: July 17, 2012
    Publication date: January 24, 2013
    Inventor: Michael J. Grassi
  • Publication number: 20130000892
    Abstract: An assembly for monitoring load on a drum during an operation in a well with a well access line deployed from the drum. The assembly may include multiple line detection mechanisms for acquiring real-time information relative to dynamic characteristics of the lone over the course of the operation. The assembly also includes a processor for computing the real-time information in light of pre-stored information relative to physical characteristics of the line and the drum. As a result, real-time monitoring of a load on the drum may be achieved. Thus, the operation may be adjusted in real-time as necessary to avoid over- loading of the drum. Additionally, a drum load history may be recorded so as to better account for the true condition of the drum following successive operations.
    Type: Application
    Filed: June 17, 2010
    Publication date: January 3, 2013
    Inventors: Sebastien Ives, Peter Fitzgerald
  • Patent number: 8321175
    Abstract: A resilience and displacement measuring device is configured with a shaft having a displacement detection module and a force detection module disposed respectively at the two ends thereof. When the shaft is moved for driving a probe of the force detection module to press on a tested press-key, a reflective panel in the displacement detection module will be caused to displace along with the moving of the shaft for allowing a light sensor to measure the displacement of the shaft, and at the same time the pressing of the probe on the press-key will force a detection film to deform for allowing a strain gauge to measure a resilience. The device is capable of dividing a measurement range into a plurality of sub-ranges while designing calculation models specifically for the sub-ranges, by that a precise distance can be obtained from the measured distance information of the calculation models.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: November 27, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chung-Chien Chiang, Chang-Hsiung Chen, Hsing-Cheng Chang, Shu-Chun Liao
  • Publication number: 20120296578
    Abstract: A system for in situ fastener preload measurement. The system includes a length measuring tool adapted to grip a fastener by the axially opposed ends of the fastener, and a computing device coupled to the length measuring tool and comprising a database and a display. The length measuring tool is provided with tips adapted to seat in indentations disposed in the axially opposed ends of the fastener, with the indentations having a shape complementary to the shape of the tips, and the indentations being disposed such that the deepest points of the indentations are axially opposite each other.
    Type: Application
    Filed: May 19, 2011
    Publication date: November 22, 2012
    Applicant: GAMESA Innovation & Technology, S.L.
    Inventor: Juan REDIN
  • Patent number: 8311760
    Abstract: An embodiment of a method for a determination, section after section, of a parameter-dependent correction value approximation course includes determining a first measurement signal value with a first parameter value associated with a sensor arrangement when the first parameter value fullfils a predetermined condition or a trigger condition is fulfilled, changing the first parameter value to obtain a second parameter value, determining a second signal value with the second parameter value and determining a second partial section of the correction value approximation course for a second parameter range based on a functional connection describing the second partial section, the first parameter value, the second parameter value, the first measurement signal value, the second measurement signal value and an initial correction value.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: November 13, 2012
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    Inventors: Hans-Peter Hohe, Michael Hackner, Markus Stahl-Offergeld
  • Publication number: 20120278005
    Abstract: The present invention provides elastic constant and visco elastic constant measurement apparatus etc. for measuring in the ROI in living tissues elastic constants such as shear modulus, Poisson's ratio, Lame constants, etc., visco elastic constants such as visco shear modulus, visco Poisson's ratio, visco Lame constants, etc. and density even if there exist another mechanical sources and uncontrollable mechanical sources in the object. The elastic constant and visco elastic constant measurement apparatus is equipped with means of data storing 2 (storage of deformation data measured in the ROI 7 etc.) and means of calculating elastic and visco elastic constants 1 (calculator of shear modulus etc. at arbitrary point in the ROI from measured strain tensor data etc.), the means of calculating elastic and visco elastic constants numerically determines elastic constants etc. from the first order partial differential equations relating elastic constants etc. and strain tensor etc.
    Type: Application
    Filed: June 25, 2012
    Publication date: November 1, 2012
    Inventor: Chikayoshi SUMI
  • Publication number: 20120261895
    Abstract: The invention relates to an apparatus and method for extracting vibration data from a moving drive chain. In the preferred embodiment, the chain is that of a bicycle, or similar pedaled machine such as an indoor stationery bicycle, with two or more sensors placed on the chainstay of the bicycle to measure the vibrational frequency of the chain. Such vibration data can be used to determine the tension of the chain, and may also further compute the power transmitted by the chain, in conjunction with the measurement of chain speed. The invention provides a method and apparatus for conditioning and filtering the signals from the vibration sensors, as well as an arrangement for positioning the sensors on the bicycle.
    Type: Application
    Filed: August 24, 2010
    Publication date: October 18, 2012
    Applicant: CC KINETICS, INC.
    Inventors: Alan Cote, John Croy, Jean Joseph Cote