Stress Or Strain Measurement Patents (Class 702/42)
-
Patent number: 12257717Abstract: A multi-joint-robot linear-member-shape simulator receives a position of at least one via point via which the linear member extends between a start-point position and an end-point position, an initial position of an adjustment via point that adjusts a length of the linear member, and an adjustment parameter of the adjustment via point, and repeatedly executes shape control for determining the shape of the linear member and a length adjustment for determining the length of the linear member when the linear member has the determined shape by using the input position of the via point and the input initial position of the adjustment via point as an initial value until a difference between an actual length of the linear member and the determined length thereof becomes smaller than or equal to a permissible value. When the shape control is to be executed, the adjustment parameter is changed.Type: GrantFiled: March 24, 2022Date of Patent: March 25, 2025Assignee: Kobe Steel, Ltd.Inventors: Fumiaki Sawakawa, Masatoshi Hida
-
Patent number: 12253051Abstract: A method of making a multi-grained fuel grain for a rocket is disclosed, the method comprising the steps of using at least one nozzle to extrude a first propellant in an additive manufacturing process, the first propellant comprising a multi-grained fuel grain, the multi-grained fuel grain forming the at least one void, the at least one void facilitating variation in internal ballistics, forming sensors, said sensors permitting continuous monitoring and continuous modification such that a user controls the ballistics profile of a rocket motor, forming an electrically-controlled second propellant in contact with and operatively coupled to the sensors; and wherein the additive manufacturing process uses at least at least one nozzle to extrude raw materials.Type: GrantFiled: December 20, 2023Date of Patent: March 18, 2025Inventors: Jason Hundley, Mark Kaufman, Michael McPherson
-
Patent number: 12174093Abstract: Cracks in foundations may be detected by sensing motion within the foundation. Depth sensors may be applied to a foundation, and the depths of the sensors may be read. At subsequent points in time the depths of the sensors may be read again. If the depths of the sensors are changing in a way that suggests that portions of the foundation are moving apart from each other, then it may be inferred that a crack is forming in the foundation. The formation of cracks may be used to take various actions. For example, the owner of the building that rests on the foundation may be information of the crack so that he or she may take remedial action.Type: GrantFiled: December 19, 2023Date of Patent: December 24, 2024Assignee: United Services Automobile Association (USAA)Inventor: Bradly Jay Billman
-
Patent number: 12158291Abstract: The elastocaloric effect underpins a promising solid-state heat pumping technology that, when adopted for commercial and residential applications, can revolutionize the cooling and heating industry due to low environmental impact and substantial energy savings. Known operational demonstration devices based on the elastocaloric effect suffer from low endurance of materials and, in most experimental systems, from large footprints due to bulky actuators required to provide sufficient forces and displacements. We demonstrate a new approach which has the potential to enable a more effective exploitation of the elastocaloric effect by reducing the forces required for actuation. Thin strips of NiTi were incorporated into composite structures with base polymer, such that bending the structures results in either exclusively compression or exclusively tension applied to the elastocaloric strips.Type: GrantFiled: November 12, 2020Date of Patent: December 3, 2024Assignee: Iowa State University Research Foundation, Inc.Inventors: Julie Slaughter-Zrostlik, Vitalij K. Pecharsky, Lucas Griffith, Agata Czernuszewicz
-
Patent number: 12116757Abstract: The present technology includes a method for detecting one or more anomalous operating characteristic of an industrial machine. The method can include collecting telematics data indicative of the industrial machine's performance, generating a histogram based on at least a portion of the collected telematics data, applying a histogram comparator engine to the histogram to determine whether the histogram indicates an anomalous operating characteristic, and if the histogram is determined to indicate an anomalous operating characteristic, presenting, to a user, information associated with the anomalous operating characteristic.Type: GrantFiled: January 28, 2022Date of Patent: October 15, 2024Assignee: Caterpillar Inc.Inventors: David A. Villero, Kyle J. Cline
-
Patent number: 11996856Abstract: The present disclosure provides a circuitry. The circuitry includes a comparator and a signal correlated circuit. The comparator includes a first input terminal, a second input terminal, and an output terminal. The signal correlated circuit includes a first input terminal, a second input terminal, a first output terminal, and a second output terminal. The first input terminal is coupled to receive a first input signal. The second input terminal is coupled to receive a second input signal independent from the first input signal. The first output terminal is configured to generate a first output signal and to send the first output signal to the first input terminal of the comparator. The second output terminal is configured to generate a second output signal and to send the second output signal to the second input terminal of the comparator. The first output signal and the second output signal are correlated.Type: GrantFiled: December 14, 2022Date of Patent: May 28, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Chung-Ting Lu, Chih-Chiang Chang, Chung-Chieh Yang
-
Patent number: 11976916Abstract: An optical strain gauge system measures strain on the exterior surface of a pipe to identify areas of wear on the interior surface of the pipe. The optical strain gauge system comprises an optical sensing interrogator and at least one optical fiber. The optical sensing interrogator comprises a light source and a light sensor. The at least one optical fiber includes fiber Bragg gratings along the length of the optical fiber. The optical fiber is arranged on the exterior surface of the pipe with the fiber Bragg gratings forming a two-dimensional array of points at which strain measurements are obtained. The two-dimensional array of strain measurement points provides an accurate assessment of the strains on the exterior of the pipe which can be used to identify areas of wear on the interior surface of the pipe.Type: GrantFiled: June 30, 2021Date of Patent: May 7, 2024Assignee: CHEVRON U.S.A. INC.Inventors: Baha Tanju, Hariprasad Janakiram Subramani, Peter Crowder, Lee Rhyne, Nikolaos Ioannis Salmatanis, Pedro Vargas, Milind L. Prabhu
-
Patent number: 11933291Abstract: A compressor, a monitoring system and a method of monitoring a compressor that make it possible to monitor the remaining lifetime of a semiconductor element of a motor control system while the processing load is reduced are provided. A compressor (1) includes: a motor control system (10) that controls the rotation speed of a motor (2); a compressor body (3) that compresses air by being driven by the motor (2); a pressure sensor (20) that is provided on the discharge side of the compressor body (3); and a running controller (11) that performs switching between load running and no-load running on the basis of the pressure sensed by the pressure sensor (20).Type: GrantFiled: July 28, 2020Date of Patent: March 19, 2024Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Tomofumi Okubo, Norinaga Suzuki, Kiyomi Tashima, Akihiro Takanuki
-
Patent number: 11920986Abstract: A sewer pipe inflow and infiltration diagnosis method based on a distributed fiber-optic temperature measurement system is provided. The inflow and infiltration diagnosis method includes the following steps: S1: transmitting, by an optical time-domain reflectometer, an original optical signal to a temperature sensing fiber-optic cable provided in a sewer pipe; S2: feeding back, by the temperature sensing fiber-optic cable, a modulated optical signal to the optical time-domain reflectometer due to a temperature effect; S3: subjecting the modulated optical signal to photoelectric conversion, so as to acquire binary information; S4: converting the binary information into decimal information; S5: drawing a spatiotemporal map of a water temperature; and S6: eliminating a background noise value, identifying an abnormal water temperature point, determining an inflow and infiltration point of the sewer pipe, and determining an abnormal inflow and infiltration point of the sewer pipe.Type: GrantFiled: August 10, 2021Date of Patent: March 5, 2024Assignee: TONGJI UNIVERSITYInventors: Hailong Yin, Zuxin Xu, Longtian Guo, Ming Xie
-
Patent number: 11913912Abstract: Disclosed are a hole expansion ratio testing device, a hole expansion ratio testing method, and an operation program. The hole expansion ratio testing device includes a chucking unit configured to chuck a plate member having a hole, a punching unit inserted into the hole and configured to expand the hole, an image acquisition unit configured to acquire an image of the hole expanded by the punching unit, and an analysis unit configured to extract an interest area corresponding to the hole from the acquired image, linearize the interest area, and provide information on a crack as a blob changes due to the linearization.Type: GrantFiled: March 16, 2021Date of Patent: February 27, 2024Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUSInventors: Jonghun Yoon, Seungho Choi
-
System, apparatus and method of condition based management of one or more electro-mechanical systems
Patent number: 11874654Abstract: Systems, devices, and methods of condition-based management of electro-mechanical systems are disclosed. The method includes generating a stress profile for the electro-mechanical system based on operating or simulating operation of the electro-mechanical system in accordance with a load profile, wherein the load profile indicative of operation duration and load capacity of the electro-mechanical system. The method further includes receiving condition data associated with the electro-mechanical system in operation from a plurality of sensing units and predicting a failure instance of the electro-mechanical system using an accelerated degradation model based on at least one of the stress profile and the condition data. The accelerated degradation model is generated when the electro-mechanical system is operated above a rated stress.Type: GrantFiled: June 26, 2020Date of Patent: January 16, 2024Assignee: Siemens AktiengesellschaftInventor: P. V. Sudev Nair -
Patent number: 11868099Abstract: Cracks in foundations may be detected by sensing motion within the foundation. Depth sensors may be applied to a foundation, and the depths of the sensors may be read. At subsequent points in time the depths of the sensors may be read again. If the depths of the sensors are changing in a way that suggests that portions of the foundation are moving apart from each other, then it may be inferred that a crack is forming in the foundation. The formation of cracks may be used to take various actions. For example, the owner of the building that rests on the foundation may be information of the crack so that he or she may take remedial action.Type: GrantFiled: October 14, 2022Date of Patent: January 9, 2024Assignee: United Services Automobile Association (USAA)Inventor: Bradly Jay Billman
-
Patent number: 11852101Abstract: A method of making a multi-grained fuel grain for a rocket is disclosed, the method comprising the steps of using at least one nozzle to extrude a first propellant in an additive manufacturing process, the first propellant comprising a multi-grained fuel grain, the multi-grained fuel grain forming the at least one void, the at least one void facilitating variation in internal ballistics, forming sensors, said sensors permitting continuous monitoring and continuous modification such that a user controls the ballistics profile of a rocket motor, forming an electrically-controlled second propellant in contact with and operatively coupled to the sensors; and wherein the additive manufacturing process uses at least at least one nozzle to extrude raw materials.Type: GrantFiled: May 20, 2021Date of Patent: December 26, 2023Assignee: X-Bow Launch Systems Inc.Inventors: Jason Hundley, Mark Kaufman, Michael McPherson
-
Patent number: 11815175Abstract: In a control device of an electric vehicle including a motor, driving wheels, a shifting device that is operated by a driver and selectively sets one of two shift positions of a traveling position that generates driving force by transmitting output torque of the motor to the driving wheels, and a non-traveling position that does not generate driving force without transmitting the output torque to the driving wheels, a controller causes the motor to output signal torque that enables the driver to sense a change in a vehicle behavior accompanied with switching of the shift position when the driver switches the shift position.Type: GrantFiled: January 30, 2020Date of Patent: November 14, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daijiro Kawasaki, Satoshi Yamanaka, Hideaki Otsubo
-
Patent number: 11810802Abstract: Systems and methods for substrate support in a millisecond anneal system are provided. In one example implementation, a millisecond anneal system includes a processing chamber having a wafer support plate. A plurality of support pins can extend from the wafer support plate. The support pins can be configured to support a substrate. At least one of the support pins can have a spherical surface profile to accommodate a varying angle of a substrate surface normal at the point of contact with the substrate. Other example aspects of the present disclosure are directed to methods for estimating, for instance, local contact stress at the point of contact with the support pin.Type: GrantFiled: July 27, 2020Date of Patent: November 7, 2023Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY CO., LTD., MATTISON TECHNOLOGY, INCInventor: Joseph Cibere
-
Patent number: 11802747Abstract: The invention relates to a firearm analysis device for determining parameters which are indicative for a firearm from a shot which has been discharged from the weapon, as well as a corresponding method, a corresponding firearm and a computer program product. The device comprises a voltage generating unit which generates an alternating voltage (Ue) during a counter-recoil travel and/or recoil travel of a movable weapon part occurring during a firing. The device is characterized by a signal processing unit which generates a measurement signal (IN+) from the generated AC voltage (Ue), a signal evaluation unit which determines a first time point and a second time point during the counter-recoil travel and/or recoil travel of the movable weapon part, and a time determination unit which determines a time period duration between the first time point and the second time point.Type: GrantFiled: February 25, 2022Date of Patent: October 31, 2023Assignee: HECKLER & KOCH GmbHInventors: Markus Staiger, Mark Scheuermann, Johannes Alexander Kopf, Dietrich Gebert, Dieter Rimpf
-
Patent number: 11726040Abstract: A detecting apparatus for use in specifying regions having different impurity concentrations in an ingot includes an ingot holding unit having a holding surface for holding the ingot thereon, an excitation light source for applying excitation light having a predetermined wavelength to a face side of the ingot held on the holding surface, and a photodetector for detecting fluorescence emitted from the ingot upon exposure to the excitation light and generating an electric signal representing a number of photons of only light whose wavelength is in an infrared radiation range, of the detected fluorescence.Type: GrantFiled: February 2, 2022Date of Patent: August 15, 2023Assignee: DISCO CORPORATIONInventors: Kazuki Mori, Ryohei Yamamoto
-
Patent number: 11713985Abstract: Fibre optics for distributed environmental condition and/or air quality sensing such as, but not limited to, sensing air quality in enclosed areas of an aircraft such as the passenger cabin. Fibre optics can be used for sensing and for communication and are therefore well suited to the distributed sensing of environmental conditions such as temperature, relative humidity, gas and particulate composition within spaces of the aircraft e.g. the cabin, cargo space, cockpit, electronics bay etc. and in related systems such as the environmental control system (ECS), the cabin recirculation system, bleed air system etc.Type: GrantFiled: October 14, 2020Date of Patent: August 1, 2023Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Catherine Thibaud, Zissis A. Dardas, Jagadeswara Reddy Karra, David L. Lincoln
-
Patent number: 11673685Abstract: A system for monitoring propeller health includes a processing unit having a processor which is programmed to apply a plurality of algorithms to inputted aircraft parameter data. The system also includes a plurality of data inputs for inputting aircraft parameter data into the algorithms, wherein the processor is configured to apply the physics based algorithms to the aircraft parameter data to determine at least the fatigue life consumption of one or more critical components of a propeller. In addition, the system includes an output device which is able to output an indication of the determined fatigue life consumption to an observer.Type: GrantFiled: February 25, 2021Date of Patent: June 13, 2023Assignee: RATIER-FIGEAC SASInventors: Abdellah El Haloui, Brian P. Huth, Mark Vignali, Olivier Lacroix
-
Patent number: 11644371Abstract: Systems, devices and methods enable generation and monitoring of support platform structural conditions in a manner that overcomes drawbacks associated with conventional approaches (e.g., load cells) for generating and monitoring similar operating condition information. In preferred embodiments, such systems, devices and methods utilize fiber optic strain gauges (i.e., fiber optic sensors) in place of (e.g., retrofit/data replacement) or in combination with conventional load cells. The fiber optic sensors are strategically placed at a plurality of locations on one or more support bodies of a support platform. In preferred embodiments, the fiber optic strain gauges are placed in positions within a hull and/or one or more pontoons of an offshore platform. Such positions are selected whereby resulting operating condition data generated by the fiber optic strain gauges suitably replaces data received by conventionally constructed and located load cells of an offshore platform (e.g., a TLP).Type: GrantFiled: June 17, 2022Date of Patent: May 9, 2023Assignee: ASTRO TECHNOLOGY GROUP, LLCInventor: David Verl Brower
-
Patent number: 11536618Abstract: A load indicator apparatus which is compact, portable and detachably mounted on the tie-rod. The load indicator apparatus includes a first reference fixture configured for attachment at a first position on the tie-rod, a second fixture configured for attachment at a second position on the tie-rod and an elongation gauge extending between the first reference fixture and the second fixture and configured to measure displacement of the second fixture relative to the first reference fixture during elongation of the tie-rod. A displacement transducer is connected to the second fixture to measure a capacitance value proportional to the loading acting on the tie-rod and transfers it to a load monitoring unit which translates the measured capacitance into a visual load reading and an electronic load output value.Type: GrantFiled: February 14, 2020Date of Patent: December 27, 2022Assignee: Valley Forge & Bolt Mfg. Co.Inventor: Ronald C. Clarke
-
Patent number: 11524534Abstract: Methods and apparatus are disclosed for a load-sensing hitch utilizing a system of strain gauges. An example apparatus includes a hitch including a first support including a first end, a second end, and a mid-portion located between the first end and the second end, the mid-portion having a cross-sectional area smaller than the cross-sectional area of the first end or the cross-sectional area of the second end, a strain gauge located at the mid-portion of the first support, a frame attachment to couple the hitch to a frame of a vehicle, the support coupled to the frame attachment, and a load manager to determine a load condition based on sensor data from the strain gauge.Type: GrantFiled: April 14, 2020Date of Patent: December 13, 2022Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Kevin Stanton Giaier, Bryce Reinert, Andrew Niedert, Joshua Norwood, Jorge Rivas, Peter Kowalow, Rebecca Giaier
-
Patent number: 11507035Abstract: Cracks in foundations may be detected by sensing motion within the foundation. Sensors may be applied to a foundation, and the positions of the sensors may be read. At subsequent points in time the positions of the sensors may be read again. If the positions of the sensors are changing in a way that suggests that portions of the foundation are moving apart from each other, then it may be inferred that a crack is forming in the foundation. The formation of cracks may be used to take various actions. For example, the owner of the building that rests on the foundation may be information of the crack so that he or she may take remedial action.Type: GrantFiled: May 14, 2019Date of Patent: November 22, 2022Assignee: United Services Automobile Association (USAA)Inventor: Bradly Jay Billman
-
Patent number: 11407079Abstract: An apparatus includes at least one memory configured to store at least one image of multiple pieces of deburring media used in a vibration deburring machine. The apparatus also includes at least one processor configured to analyze the at least one image to determine a condition of each of the multiple pieces of deburring media and determine an overall condition of the deburring media. The at least one processor is also configured to generate a graphical user interface containing a notification based on at least one of: the conditions of the multiple pieces of deburring media and the overall condition of the deburring media.Type: GrantFiled: March 12, 2020Date of Patent: August 9, 2022Assignee: Raytheon CompanyInventors: Kristen Stone, Robert R. S. Di Carlo
-
Patent number: 11385113Abstract: Disclosed herein is a coil sensor-based tensile force measurement system capable of temperature compensation. The coil sensor-based tensile force measurement system includes: a coil sensor configured to magnetize an inspection target object, and to detect information about a magnetic flux density formed by the magnetized inspection target object; a thermistor disposed to detect the temperature of a place where the coil sensor is installed; and a tensile force measurement server configured to acquire magnetic hysteresis curve information based on the temperature for the inspection target object, based on information collected by the coil sensor and the thermistor.Type: GrantFiled: March 4, 2022Date of Patent: July 12, 2022Assignee: SMARTINSIDE AI Inc.Inventors: Seung Hee Park, Won Kyu Kim
-
Patent number: 11360009Abstract: To provide a fracture-visualization sensor capable of visualizing the fracture behavior of a composite material and a composite-material fracture-visualization system using the fracture-visualization sensor. A first luminescent film including a mechanoluminescent material is provided on one surface of a composite material. The first luminescent film has a maximum stress per unit of cross-sectional area within the range of 19-43 N/mm2.Type: GrantFiled: September 21, 2018Date of Patent: June 14, 2022Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Yuki Fujio, Nao Terasaki
-
Patent number: 11346206Abstract: Changes to the vibrational frequencies of a drill string or BHA are monitored for prognostic health monitoring purposes. When one or more orders of resonance frequencies deviate from a baseline frequency, the magnitude of the deviation, and possibly the rate of deviation, is evaluated. When the deviation exceeds a threshold value, an alert is triggered. The alert may be triggered by downhole processing of the vibration data and conveyed to an operator to allow changes in operational parameters or removal of the component from the wellbore. The alert may instead be triggered by post-run processing of stored and dumped data, that can be used to evaluate whether the tool can be re-run, or whether it should be inspected, repaired, or scrapped.Type: GrantFiled: March 3, 2020Date of Patent: May 31, 2022Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Adam Ian Bowler, Mauro Caresta, Benjamin Peter Jeffryes
-
Patent number: 11277573Abstract: A system for monitoring a drill string comprising: a plurality of image capture devices disposed around a wellbore and adapted to record images of a portion of the drill string; and a logic device adapted to determine linearity of the portion of the drill string based on a form factor deviation. A method of monitoring a drill string comprising: capturing images of a portion of the drill string with an image capture device; assessing a form factor deviation of the portion of the drill string; and determining a linearity of the portion of the drill string based on the form factor deviation.Type: GrantFiled: December 5, 2019Date of Patent: March 15, 2022Assignee: Nabors Drilling Technologies USA, Inc.Inventors: Christopher Magnuson, Mark Docherty
-
Patent number: 11263373Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for predictive machining for forging distortions. In one aspect, a method includes obtaining a mesh model of a machined part to be machined from a forged part and residual stress field data for the forged part, where the mesh model includes multiple nodes corresponding to at least one boundary of the machined part, updating the mesh model by applying the residual stress field data to the multiple nodes corresponding to the at least one boundary to change positions of the multiple nodes in the mesh model, repeating the updating until an amount of change to each of the positions of the multiple nodes in the mesh model satisfies a correction criteria, and providing the compensated mesh model for use in machining the machined part from the forged part.Type: GrantFiled: January 25, 2019Date of Patent: March 1, 2022Assignee: Autodesk, Inc.Inventors: Daniel Mario Noviello, Fikret Kalay, Akmal Ariff Bin Abu Bakar
-
Patent number: 11255311Abstract: A rotor rotation control system for a wind turbine and a control method thereof are provided. The control system includes a rotation unit configured to drive a rotor of the wind turbine to rotate relative to an engine base of the wind turbine, a driving unit configured to drive the rotation unit, and a processor configured to determine a bending moment load switching position on a rotating shaft of the rotor, and output an adjustment instruction to the driving unit based on the bending moment load switching position.Type: GrantFiled: April 8, 2018Date of Patent: February 22, 2022Assignee: JIANGSU GOLDWIND SCIENCE & TECHNOLOGY CO., LTD.Inventors: Hongfeng Li, Yong Yang, Jing Fang, Endi Zhai, Xingang Zhang, Ye Li
-
Patent number: 11244093Abstract: A method simulates behavior of a structure by finite element calculation in which a global model represents the structure, a local model represents an area of the structure including geometric details, and an auxiliary model represents the area without the geometric details. The method includes determining by finite element calculation in the global model of a nodal displacement field corresponding to a loading applied to the global model; applying the nodal displacement field to the local and auxiliary models and determining the corresponding forces; calculating a correction when convergence of the solution obtained for the global model is not achieved, and the applying is resumed with a nodal displacement field calculated in the global model after implementing the correction; determining values of internal variables for the different loading increments; and assessing the evolution in the behavior of the structure over time as a function of these values.Type: GrantFiled: March 16, 2018Date of Patent: February 8, 2022Assignees: Safran Aircraft Engines, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)Inventors: Geoffrey Juan Desmeure, Maxime Guy Roland Blanchard, Olivier Francois Gerard Allix, Pierre Noel Gosselet
-
Patent number: 11025865Abstract: A method is disclosed. The method receives a two dimensional or a three dimensional computer generated representation of an area, receives a plurality of images of the area captured by one or more video cameras, detects a first moving object in the plurality of images, generates a computer representation of the first moving object, correlates the images of the area captured by the one or more video cameras with the two dimensional or three dimensional computer generated representation of the area, and displays the computer representation of the first moving object in the two dimensional or the three dimensional computer generated representation of the area.Type: GrantFiled: June 17, 2011Date of Patent: June 1, 2021Assignee: HRL Laboratories, LLCInventors: Swarup S. Medasani, Yuri Owechko, Kyungnam Kim, Alexander Krayner
-
Patent number: 11016011Abstract: In a breaking prediction method of predicting a breaking portion of a component, which is obtained by forming a metal sheet, by using a finite element method, the breaking portion is easily and reliably extracted.Type: GrantFiled: May 18, 2016Date of Patent: May 25, 2021Assignee: NIPPON STEEL CORPORATIONInventors: Jun Nitta, Shigeru Yonemura, Satoshi Shirakami, Takashi Yasutomi
-
Patent number: 11007101Abstract: A motive system for a patient lifting assembly, a patient lifting assembly and a method of operating a patient lifting assembly. The motive system includes an electric motor, numerous sensors and an adaptive control unit cooperative with one another so that a memory and processor that are part of the control unit that can respectively store and execute a computer readable and executable instruction set. By comparing collected data from the sensors during operation of the motor to corresponding reference values associated with one or more motor operational parameters—such as accumulated motor wear over time or differences in operating temperature of the motor—the system can selectively adjust the maximum amount of current available for use by the motor. In this way, changes in motor efficiencies that arise with these parametric changes can be taken into consideration when determining an upper limit on how much electrical current may be delivered to the motor for a given load.Type: GrantFiled: April 25, 2018Date of Patent: May 18, 2021Assignee: LIKO RESEARCH & DEVELOPMENT ABInventors: Joakim Eriksson, Mattias Andersson, Erik Gustafsson
-
Patent number: 10883814Abstract: A method to assemble a highly stretchable and highly sensitive strain sensor. Carbon nanofibers prepared by electrospinning of PAN followed by stabilization and carbonization, are sandwiched in two layers of elastomer PU. The CNFs/PU strain sensor shows large strain range of 300%, high sensitivity with gauge factor up to 72.5, and superior stability and durability during 8000 cycles of stretch/release. The CNFs/PU strain sensor shows fast, stable and reproducible responses following the bending movement of fingers, wrists, and elbows. The flexible CNFs/PU strain sensor with has broad applications in wearable devices for human motion monitoring.Type: GrantFiled: May 9, 2017Date of Patent: January 5, 2021Assignee: SOUTH DAKOTA BOARD OF REGENTSInventors: Zhengtao Zhu, Yichun Ding, Yongchen Yang
-
Patent number: 10752341Abstract: A method of tip clearance estimation for a rotor blade is provided. The method includes measuring blade deflection of the rotor blade, generating a harmonic function for the rotor blade from the measured blade deflection, predicting tip displacement of the rotor blade using the generated harmonic function and adjusting a position of the rotor blade according to the predicted tip displacement.Type: GrantFiled: December 21, 2015Date of Patent: August 25, 2020Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Derek Geiger, Jeremy Frimpong Banning
-
Patent number: 10732073Abstract: The invention is a method for obtaining the curved displacement of a flexible structure by using strain measurements obtained by strain sensors. By obtaining the displacement of structures in this manner, one may accurately construct the deformed shape of the structure under large geometric nonlinear deformations and display said deformed shape in real-time, enabling active control of the structure shape if desired.Type: GrantFiled: October 4, 2017Date of Patent: August 4, 2020Assignee: U.S.A. as Represented by the Administration of the National Aeronautics and Space AdministrationInventors: William L Ko, Van T Fleischer, Shun-Fat Lung
-
Patent number: 10704972Abstract: A method for measuring the applied load on a towing hook/or a tow bar accessory of a towing hook arrangement for a vehicle, and a towing hook arrangement for a vehicle. The towing hook arrangement comprises a towing hook and/or a tow bar accessory arranged on a tow bar, the towing hook arrangement also comprises a sensor arrangement having at least one actuator and at least one sensor, the sensor arrangement is adapted to detect an imparted vibration on the tow bar and use the detected imparted vibration to determine the applied load on the towing hook and/or the tow bar accessory.Type: GrantFiled: February 23, 2016Date of Patent: July 7, 2020Assignee: BRINK TOWING SYSTEMS B.V.Inventor: Teunis Lassche
-
Patent number: 10612911Abstract: A method and system for rendering the quaternion shape and orientation of a three-dimensional structure. The proposed system and method keeps track of twist/roll angles and updates its effect on pitch and yaw orientations. The system relies on a single or multi-core optical fiber or multi-fiber bundle containing fiber Bragg grating sensors (FBGs) arrayed in rosettes at 45° deltas and spaced at uniform intervals along the entire length of the structure to be monitored. A tunable laser is used to interrogate the sensors using optical frequency domain reflectometry (OFDR), which detects shifts in the wavelength reflected by the sensors in response to strain on the fibers. Each sensor is continuously queried by software which determines the strain magnitude (?L/L) for each fiber at a given triplet. Given these measured strain values, the software implements a novel quaternion approach to rendering the 3D shape of the fiber including twist.Type: GrantFiled: September 4, 2018Date of Patent: April 7, 2020Assignee: United States of America as Represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Francisco Pena, III, Allen R. Parker, Jr., William Lance Richards, Hon Man Chan
-
Patent number: 10605854Abstract: A method of monitoring the health of a semiconductor power electronic switch such as an insulated gate bipolar transistor (IGBT) is provided. The method having the steps of: measuring one or more parameters selected from the group consisting of: a rate of change of voltage ( dV dt ) across the switch; a rate of change of current ( di dt ) through the switch, a charge present on a gate of the switch (QG), a peak overshoot voltage (VPO) across the switch, and a peak overshoot or reverse recovery current (IRR) through the switch; and estimating the health of the switch based on the measured parameter(s).Type: GrantFiled: May 16, 2017Date of Patent: March 31, 2020Assignee: ROLLYS-ROYCE plcInventors: Mohamed Halick Mohamed Sathik, Chandana Jayamapathi Gajanayake, Shantha Dharmasiri Gamini Jayasinghe, Amit Kumar Gupta, Rejeki Simanjorang
-
Patent number: 10595399Abstract: An organic substrate includes a core layer including organic materials; a first buildup layer on a top surface of the core layer; a second buildup layer on a bottom surface of the core layer; and at least one correction layer formed on at least one part of surfaces of the first buildup layer and the second buildup layer, wherein the correction layer has a thickness which has been calculated using properties of constituent materials including the coefficient of thermal expansion (CTE) and the Young's modulus of the core layer, and CTEs and the Young's modulus of the first and the second buildup layers for reducing warpage of the organic substrate.Type: GrantFiled: January 16, 2018Date of Patent: March 17, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Sayuri Hada, Hiroyuki Mori, Keishi Okamoto
-
Patent number: 10589431Abstract: Provided is a strain sensor which includes: a linear bearing including a first member and a second member which are supported such that the first member and the second member are relatively movable only in an axial direction of a predetermined axis; a connecting member including fixed portions, which are respectively fixed to the first member and the second member, and a strain generation portion which connects the fixed portions with each other; and a strain detecting element disposed on the connecting member so as to be capable of detecting strain in at least a moving direction.Type: GrantFiled: November 28, 2018Date of Patent: March 17, 2020Assignee: FANUC CORPORATIONInventor: Kazutaka Nakayama
-
Patent number: 10578144Abstract: An Internet of Thing (IoT) device includes a head portion; an elongated stress sensor coupled to the head portion, the stress sensor coupled to a surface; a processor coupled to the stress sensor; and a wireless transceiver coupled to the processor.Type: GrantFiled: April 16, 2019Date of Patent: March 3, 2020Inventors: Bao Tran, Ha Tran
-
Patent number: 10543721Abstract: A method of operating a Tire Pressure Monitoring System (TPMS) includes executing tire pressure monitoring of at least one tire installed on a vehicle in a first mode, and transmitting frequency signal loss information to a center if a loss of a frequency signal in the first mode occurs in a designated time period.Type: GrantFiled: December 20, 2016Date of Patent: January 28, 2020Assignee: HYUNDAI MOTOR COMPANYInventor: Sung Ho Choi
-
Patent number: 10521551Abstract: A method is provided that includes providing a first digital representation of a first member and a second digital representation of a second member. The first member and the second member are configured to be joined. The method also includes aligning the first digital representation and the second digital representation in a same coordinate system. Further, the method includes determining, in the coordinate system, a virtual deformation corresponding to at least one of the first digital representation or the second digital representation corresponding to an applied loading. Also, the method includes determining shim dimensions for a shim to be interposed between the first member and the second member based on the virtual deformation. The method further includes fabricating a shim having the shim dimensions.Type: GrantFiled: November 16, 2015Date of Patent: December 31, 2019Assignee: The Boeing CompanyInventors: Don Michael Clark, Joshua Gerritt Letendre, Steven Elsdon Larson
-
Patent number: 10521527Abstract: An apparatus is provided for analysis of a leading edge rib of a fixed leading edge section of an aircraft wing. The apparatus may identify geometric or inertial properties of a plurality of stiffeners of the rib, and based thereon perform an analysis to predict a failure rate of the leading edge rib under an external load. From the failure rate, the apparatus may determine a structural integrity of the leading edge rib under the external load. Performing the analysis may include importing a plurality of section cuts into a finite element model of the rib and thereby identifying nodes proximate the section cuts. Under an external load, internal load distributions may be extracted from elements proximate the nodes and elements, and the failure rate of the leading edge rib under the external load may be predicted based on the internal load distributions of the elements.Type: GrantFiled: June 24, 2016Date of Patent: December 31, 2019Assignee: The Boeing CompanyInventors: Eric S. Lester, Michael A. O'Grady, Alan N. Baumgarten, Navin Kumar, Venkata Narasimha Ravi Udali, Sachin Kulshrestha, Tejoram Bhagavathula
-
Patent number: 10458881Abstract: This internal pressure loading system includes an internal pressure loading device and an information processing device. The internal pressure loading device is set at an inner face of a pipe, and includes a load meter which detects the load applied to the inner face of the pipe and a displacement meter which detects the deformation amount of the pipe. When the internal pressure loading device is expanded so as to increase the load to be detected by the load meter, the width of the pipe at which the displacement meter is located is reduced. On the basis of the load detected by the load meter and the deformation amount detected by the displacement meter, the information processing device evaluates the remaining strength of the pipe.Type: GrantFiled: January 25, 2017Date of Patent: October 29, 2019Assignees: NATIONAL UNIVERSITY CORPORATION TOTTORI UNIVERSITY, NATIONAL UNIVERSITY CORPORATION SHIMANE UNIVERSITYInventors: Masahiro Hyodo, Hidehiko Ogata, Naoki Kawamura, Tsuguhiro Nonaka, Masayuki Ishii
-
Patent number: 10426541Abstract: A device (1) assisting with the placement of an orthopedic instrument (2) intended to be inserted in a receiving bone (3) by impaction, by means of an impacter (10) comprising at least one striking surface (11) designed to come into contact with an impact surface coupled to said orthopedic instrument in order to apply an impaction force to said orthopedic instrument (2), said device being characterized in that it comprises a force sensor (12) able to measure, upon each impact, said impaction force applied by the impacter (10) to said impact surface and to supply a measurement signal indicative of the temporal variation of said applied impaction force, said force sensor (12) being connected to processing means (30) designed to determine, on the basis of the temporal variation of said impaction force supplied for each impact in succession, an indicator representative of the degree of insertion of said orthopedic instrument (2) in the receiving bone (3).Type: GrantFiled: April 2, 2015Date of Patent: October 1, 2019Assignee: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)Inventors: Guillaume Haiat, Vincent Mathieu, Adrien Michel
-
Patent number: 10354023Abstract: A method and apparatus for transforming a finite element model is provided. A set of joint elements to the finite element model of a structure is created at a set of joint locations in the finite element model of the structure. A local coordinate system is assigned to each of the set of joint elements that is independent of a global coordinate system of the finite element model to generate a transformed finite element model. The transformed finite element model is generated with improved consistency and efficiency.Type: GrantFiled: December 10, 2014Date of Patent: July 16, 2019Assignee: The Boeing CompanyInventors: Saif Sultan, Weidong Song, Nooshin M. Khalili
-
Patent number: 10311202Abstract: A fatigue life management system for determining a remaining fatigue life of a component of an aircraft. The fatigue life management system may generate probability density functions of minimum load, maximum load, and timeframe damage for predetermined time intervals based on selected flight data of the aircraft and regression models for probabilistic prediction of minimum load, maximum load, and timeframe damage of the component. The fatigue life management system may further compute an accumulated fatigue damage estimation based on the probability density functions and a probabilistic fatigue strength model. The fatigue life management system may then generate a distribution of the accumulated fatigue damage estimation of the component. If desired, the processing circuit may compare the distribution of the accumulated fatigue damage estimation with a reliability requirement to determine the remaining fatigue life of the component.Type: GrantFiled: April 11, 2016Date of Patent: June 4, 2019Assignee: AIRBUS HELICOPTERS DEUTSCHLAND GMBHInventors: Sam Dekker, Georg Wurzel