Mechanical Patents (Class 703/7)
  • Publication number: 20130054031
    Abstract: A system and method for modeling a gas turbine assembly include a plurality of sensors configured to measure a plurality of operating parameters of a turbine assembly. The system further includes a model configured to compare the plurality of operating parameters with a plurality of predicted parameters to determine difference values. A Kalman filter of system is configured to evaluate the difference values to facilitate adjusting the model. The Kalman filter is further configured to accommodate for a missing operating parameter of the plurality of operating parameters to facilitate tuning the model.
    Type: Application
    Filed: August 24, 2011
    Publication date: February 28, 2013
    Inventors: Kevin Wood Wilkes, Randy Scott Rosson
  • Publication number: 20130054213
    Abstract: The present subject matter is directed to methods and systems for providing adaptive modeling of performance degradation in a system, particularly, a gas turbine system. A performance model is provided and operated as both a calibration model and a baseline model. Data produced during both operations is stored and differences there between is used in adaptive logic, which may correspond to a neural network, to predict performance degradation to control operation of a system baseline model. Data from operation of the system baseline model may also be stored and used with data from the calibration model and baseline model in the adaptive logic.
    Type: Application
    Filed: August 23, 2011
    Publication date: February 28, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: C.E. Tapie Rohm, III, Rex Allen Morgan, Stephen Ronald Watts
  • Patent number: 8386221
    Abstract: Systems and methods for generating transfer functions associated with calculating local stresses on pipe elements by post processing forces and moments of a pipe model representing the piping system. The transfer functions are reusable and allow recalculation with different sets of user data without requiring regeneration of the transfer functions.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: February 26, 2013
    Assignee: Nuovo Pignone S.p.A.
    Inventors: Leonardo Tognarelli, Paolo Di Sisto, Michelangelo Fabbrizzi, Roberto Merlo
  • Patent number: 8386203
    Abstract: An evaluation method of a progressive-addition lens is provided. First, powers of the progressive-addition lens at a plurality of measurement points are measured to obtain an actually measured power distribution. Next, a comparison power distribution created based on the actually measured power distribution and a defective power distribution prepared in advance are compared with each other to perform similarity search between the both. Thereafter, whether or not the comparison power distribution and the defective power distribution are similar to each other is determined based on the result of the similarity search step, and if it is determined that the comparison power distribution and the defective power distribution are similar to each other, then the progressive-addition lens is evaluated as defective.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: February 26, 2013
    Assignee: Hoya Corporation
    Inventor: Kazuma Kozu
  • Publication number: 20130043077
    Abstract: Methods and systems may be provided simulating forming a wide variety of directional wellbores including wellbores with variable tilt rates and/or relatively constant tilt rates. The methods and systems may also be used to simulate forming a wellbore in subterranean formations having a combination of soft, medium and hard formation materials, multiple layers of formation materials and relatively hard stringers disposed throughout one or more layers of formation material. Values of bit walk rate from such simulations may be used to design and/or select drilling equipment for use in forming a directional wellbore.
    Type: Application
    Filed: October 19, 2012
    Publication date: February 21, 2013
    Inventor: Shilin Chen
  • Patent number: 8380472
    Abstract: A system and method for yield management are disclosed wherein a data set containing one or more prediction variable values and one or more response variable values is input into the system. The system can process the input data set to remove prediction variables with missing values and data sets with missing values based on a tiered splitting method to maximize usage of all valid data points. The processed data can then be used to generate a model that may be a decision tree. The system can accept user input to modify the generated model. Once the model is complete, one or more statistical analysis tools can be used to analyze the data and generate a list of the key yield factors for the particular data set.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: February 19, 2013
    Assignee: Rudolph Technologies, Inc.
    Inventors: Weidong Wang, Jonathan B. Buckheit
  • Patent number: 8374830
    Abstract: A design process for varying hole locations or sizes or both in an ion beam grid includes identifying a control grid to be modified; obtaining a change factor for the grid pattern; and using the change factor to generate a new grid pattern. The change factor is one or both of a hole location change factor or a hole diameter change factor. Also included is an ion beam grid having the characteristic of hole locations or sizes or both defined by a change factor modification of control grid hole locations or sizes or both.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: February 12, 2013
    Assignee: Veeco Instruments, Inc.
    Inventors: Ikuya Kameyama, Daniel E. Siegfried
  • Patent number: 8374835
    Abstract: Methods and systems are provided to improve design, manufacture and performance of oilfield equipment and well tools using three dimensional (3D) scanning technology and one or more feedback loops. Manufacturing processes and techniques associated with a well tool may be evaluated based on comparing “as built” 3D data with a design data file for the well tool. Based on differences between “as built” 3D data and the design data file, one or more changes in associated manufacturing procedures and/or technique may be made. Computational fluid dynamic applications may be used to simulate fluid flow characteristics of a well tool using associated design data file, “as built” 3D data and/or after use 3D data. The associated design data file, manufacturing procedures and/or procedures for use of the well tool may be modified based on comparing simulated fluid flow data with desired fluid flow characteristics for the well tool.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: February 12, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: William H. Lind, Kevin L. Glass
  • Publication number: 20130036077
    Abstract: A method of optimizing a drilling tool assembly including inputting well data into an optimization system, the optimization system having an experience data set and an artificial neural network. The method further including comparing the well data to the experience data set and developing an initial drilling tool assembly based on the comparing the well data to the experience data, wherein the drilling tool assembly is developed using the artificial neural network. Additionally, the method including simulating the initial drilling tool assembly in the optimization system and creating result data in the optimization system based on the simulating.
    Type: Application
    Filed: October 5, 2012
    Publication date: February 7, 2013
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: David P. Moran, Mark P. Frenzel, Roy Duncan
  • Patent number: 8370233
    Abstract: A business object model, which reflects data that is used during a given business transaction, is utilized to generate interfaces. This business object model facilitates commercial transactions by providing consistent interfaces that are suitable for use across industries, across businesses, and across different departments within a business during a business transaction. In some operations, software creates, updates, or otherwise processes information related to a cost model, a current account contract, and/or a collateral constellation business object.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: February 5, 2013
    Assignee: SAP AG
    Inventors: Martin Kaisermayr, Roman Rapp, Mahesh Sastry, Prasheel Kayal, Manfred Wanninger, Reshmi Sreekumar, Mohammed Reza, Frederik Thormaehlen, Srirama Suraparaju, Joachim Gross, Manimaran Mani, Anil Kumar K Naidu
  • Patent number: 8370116
    Abstract: A harness verification method includes placing a three-dimensional model in virtual space and displaying a model plane onto which an overhead view of the three-dimensional model is projected, setting reference planes in the virtual space and displaying on the display cross-section projection planes onto which cross sections defined by intersection of the three-dimensional model and the reference planes is projected; obtaining a pointing position operated by a pointing unit in the virtual space, designating the pointing position as an operation position, identifying the operation position as a pass point of a harness, generating curve segments each corresponding to section between two adjacent pass points, and storing in the storage unit definition information that defines a route of the harness on the basis of jointed curve segments; and displaying on the cross-section projection planes the route of the harness generated on the cross section on the basis of the definition information.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: February 5, 2013
    Assignee: Fujitsu Limited
    Inventors: Masayuki Kidera, Kouji Demizu
  • Patent number: 8370120
    Abstract: A pattern is used to form a stent scaffold from a polymeric precursor tube having a particular outer diameter. A new pattern can be derived from a base pattern, wherein the new pattern can be used to form a stent scaffold from a precursor tube having an outer diameter ODPR smaller than that needed for the base pattern. The new pattern can be derived by determining the shape of a stent scaffold, having the base pattern, after having been radially compressed to ODPR. The radially compressed shape is used to design the new pattern, which is applied to a precursor tube having an outer diameter ODPR. The new pattern can have a plurality of W-shaped closed cells, each W-shape closed cell bounded by struts oriented in such a way to form interior angles from about 80 degrees to about 95 degrees between every two adjacent struts.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: February 5, 2013
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventor: Brenna Hearn Lord
  • Patent number: 8364456
    Abstract: A system generates a state diagram model in a graphical modeling system, where the state diagram model includes at least one state. A condition statement is associated with the at least one state, and defines a condition upon which one or more actions associated with the at least one state are executed.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: January 29, 2013
    Assignee: The MathWorks, Inc.
    Inventors: Vijaya Raghavan, Zhihong Zhao
  • Patent number: 8364454
    Abstract: A system and method for dynamically checking clearance within a geometric mesh model includes a user computer system having a remotely located computer system, and a data storage device. The method periodically updates a digital model of assembled component parts stored on the data storage device, interactively selects a predetermined clearance rule applicable to the digital model and interactively selects a predetermined clearance condition applicable to the selected clearance rule for the digital model that modifies the predetermined clearance rule. The method periodically calculates clearance within the assembled digital model using the selected clearance rule and the selected clearance condition and summarizing the clearance check. The clearance check summary identifies a clearance issue using a predetermined clearance checking criteria and submits the identified clearance issue to an issue manager software program for tracking clearance issues.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: January 29, 2013
    Assignee: Ford Motor Company
    Inventors: Daniel Arbitter, David Roberts, Sejal Shreffler, Vincent Pesch, William Putnam
  • Publication number: 20130024136
    Abstract: A method for evaluating mechanical properties of a sample includes applying a plurality of pulses of acoustic energy to a sample to apply a mechanical force to the sample and induce a non-steady-state displacement in the sample. The method further includes monitoring a response of the sample caused by the application of the mechanical force. The method further includes determining a quantitative value for a mechanical property of the sample based on the response.
    Type: Application
    Filed: August 28, 2012
    Publication date: January 24, 2013
    Applicant: The University of North Carolina at Chapel Hill
    Inventors: Caterina Gallippi, Mallory Scola
  • Patent number: 8356471
    Abstract: According to one representative embodiment, an apparatus for controlling reductant dosing in an SCR catalyst system having a reductant injection system configured to inject reductant into an exhaust gas stream includes a controller, an actual reductant dosing rate module, and a reductant doser compensation module. The controller is configured to determine a reductant dosing rate command representing a desired reductant dosing rate. The actual reductant dosing rate module is configured to determine a predicted actual reductant dosing rate based at least partially on the reductant dosing rate command. The reductant doser compensation module is configured to determine a modified reductant dosing rate command based at least partially on the predicted actual reductant dosing rate. The reductant injection system injects reductant into the exhaust gas stream at a rate corresponding to the modified reductant dosing rate command.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: January 22, 2013
    Assignee: Cummins IP, Inc.
    Inventors: John N. Chi, Weiwen Wang, Phanindra Garimella, Joe V. Hill
  • Publication number: 20130013114
    Abstract: Virtual material handling systems can be used to drive the operation of real material handling systems for purposes such as testing and validation of the components of the real material handling systems. The real material handling system, in turn, can provide data regarding system operation which may be fed back to the virtual material handling system to control its function.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 10, 2013
    Inventors: William A. Magato, Brian John Resnick
  • Patent number: 8352225
    Abstract: A process for simulating and assembling flexible parts includes creating an ideal path between first and second planes and placing a virtual rigid envelope around the ideal path, and possibly tubular extensions beyond the path. A virtual flexible part is marked with reference features and pulled through the virtual rigid envelope, such that the path of the virtual flexible part is constrained but may rotate. Removing the virtual rigid envelope allows the virtual flexible part to relax, causing it to move to its lowest energy state. Zero-twist end conditions on the virtual flexible part are marked, corresponding to the intersection of the reference features with the planes. Identification marks are placed on a real flexible part, corresponding to the reference strips on the virtual flexible part. The real flexible part may then be assembled by aligning zero-twist marks on mating features to the identification marks on the real flexible part.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: January 8, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Wuhua Yang, Robert Bruce Tilove, Richard A. Knoth
  • Patent number: 8352219
    Abstract: The object is to enable the calculation of load transfer paths in case of distributed load applied to the structure with the numerical structure-analysis calculation system. The value of the parameter U** at each point is calculated according to the ratio of the complementary strain energy U at the application of load without fixing the point in the structure and the complementary strain energy U? at the application of load with fixing one point in the structure. In the actual calculation, according to the complementary strain energy U, and the flexibility matrix CAC with respect to the loading point A and one point C in the structure, and the inverse matrix CCC?1 of the flexibility matrix with respect to point C, and the load pA at the loading point A, the value of the parameter U** (CACCCC?1CCApA·pA/(2U)) at point C is calculated.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: January 8, 2013
    Assignee: Keio University
    Inventors: Kunihiro Takahashi, Toshiaki Sakurai, Tatsuya Nakada, Kengo Inoue
  • Patent number: 8337565
    Abstract: A method of optimizing the geometry of a femoral stem of hip joint prosthesis is disclosed. The femoral stem comprises a neck and an anchoring blade that is attached to the neck and that tapers towards a distal end with a lateral narrow side comprising a distal straight portion and a proximal arcuate portion corresponding to a curve. The transition between the distal straight portion and the proximal arcuate portion occurs at an outer lateral point. The method comprises a means of optimizing the profile of the curve of said proximal arcuate portion by a process of iterative modeling steps using a series of curves each defined by a path traced by the outer lateral point on withdrawal of a profile of the stem from a cavity of complementary shape to the stem.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: December 25, 2012
    Assignee: Smith and Nephew Orthopaedics AG
    Inventors: Dirk Wunderle, Alex Seidl
  • Publication number: 20120323543
    Abstract: A method for detecting changes in a building structure of a first wind turbine is provided. A reference value representing the eigenfrequency of the first wind turbine is monitored over time, whereby substantial changes in the reference value are used as an indication of changes in the building structure. Further, a detection assembly for such detections is provided.
    Type: Application
    Filed: October 7, 2010
    Publication date: December 20, 2012
    Inventors: Dan Frederiksen, Hans Laurberg
  • Patent number: 8335669
    Abstract: The accuracy or computation speed of mechanical analysis of a golf ball using the finite element method is increased. In the mechanical analysis, a model representing the golf ball is prepared on a computer, and computation is made by the finite element method using elements and nodes. At this time, the elements are made solid elements of hexahedron, the aspect ratio of the shape of each element is set so as to be not lower than 1.0 and not substantially higher than 6.5, and nodes are provided on the sides and at the vertexes of the hexahedron of element.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: December 18, 2012
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Takuichi Shimizu, Hideo Matsunaga
  • Patent number: 8335674
    Abstract: A method of producing a finite-element model of a unique body of complex shape having an outer surface that is known in the form of a cloud of points describing said surface analytically or algebraically in a determined frame of reference, the method comprising the steps of a) using a parameterizable and generic finite-element model made up of simple geometrical volumes and representative of the family to which the unique body belongs, b) adapting said model as a function of parameters describing the unique body that is to be modeled; c) in said frame of reference, adjusting the parameterized generic finite-element model and causing the surface nodes of said parameterized model to correspond to points of the known outer surface of the body by projecting said nodes onto said surface along a direction that is normal to the surface of the generic model, and d) using the nodes of the surface as control points for a three-dimensional interpolation method in order to personalize the internal finite elements of the
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: December 18, 2012
    Assignee: Societe d'Etudes et de Recherches de l'Ecole Nationale Superieure d'Arts et Metiers (Seram)
    Inventors: Laure Duchemin, Sébastien Laporte, David Mitton, Wafa Skalli
  • Publication number: 20120312603
    Abstract: Disclosed is method for designing a fixed cutter drill bit comprising: (a) defining initial primary placement parameters for primary cutter elements; (b) repeatedly: selecting back up placement parameters for back up cutter elements; applying to a simulated formation a bit design having the combination of the defined initial primary placement parameters and the selected back up placement parameters; using the combination in the simulation and generating a value representative of a first design criteria of interest (such as resultant force on a cutter element, total out-of-balance force on the bit, resistance to slip stick, and resistance to bit vibration); comparing the generated value to a first predetermined acceptable value.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 13, 2012
    Applicant: NATIONAL OILWELL DHT, L.P.
    Inventors: Christopher Propes, Curtis Lanning
  • Publication number: 20120316854
    Abstract: A system and method of developing better-designed medical devices, particularly cardiovascular stents and endovascular grafts. The system comprises a geometry generator, a mesh generator, a stress/strain/deformation analyzer, and a visualization tool. Using analysis, preferably non-linear analysis, the stress/strain/deformation analyzer determines the predicted stresses, strains, and deformations on the candidate medical device. Such stresses, strains, and deformations may optionally be simulated visually using a visualization tool.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 13, 2012
    Applicant: TRIVASCULAR, INC.
    Inventors: Robert G. Whirley, Michael V. Chobotov
  • Publication number: 20120316839
    Abstract: Methods of using computer based models for simulating the physical behavior of webs.
    Type: Application
    Filed: June 7, 2011
    Publication date: December 13, 2012
    Inventors: Michael Timothy Looney, Lei Li, Mark David Whaley, Stephen Joseph Lange
  • Publication number: 20120316853
    Abstract: Computer based methods for simulating rotational drag forces experienced by rotating objects.
    Type: Application
    Filed: June 29, 2011
    Publication date: December 13, 2012
    Inventors: Michael Timothy Looney, Lei Li, Stephen Joseph Lange, Mark David Whaley
  • Patent number: 8325183
    Abstract: Systems and Methods are provided for determining a position of an addendum mesh node disposed between a part mesh boundary and a binder mesh boundary with respect to a first plane. The method includes selecting a first point on the part mesh boundary and a second point on the binder mesh boundary having positions with respect to the first plane that are disposed on a control line which also intersects the position of the addendum mesh node with respect to the first plane, identifying a plurality of control points having positions with respect to the first plane that are disposed on the control line, and generating an interpolated curve that intersects the first point, the second point, and the plurality of control points.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: December 4, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Jeffrey A. Abell, Thomas J. Oetjens
  • Patent number: 8326505
    Abstract: A control system for an electromechanical-braking system provided with actuator elements configured to actuate braking elements for exerting a braking action has a control stage for controlling the braking action on the basis of a braking reference signal. The control stage comprises a model-based predictive control block, in particular of a generalized predictive self-adaptive control type, operating on the basis of a control quantity representing the braking action. The control system further has: a model-identification stage, which determines parameters identifying a transfer function of the electromechanical-braking system; and a regulation stage, which determines an optimal value of endogenous parameters of the control system on the basis of the value of the identifying parameters.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: December 4, 2012
    Assignee: STMicroelectronics S.r.l.
    Inventors: Nicola Cesario, Ferdinando Taglialatela Scafati, Olga Scognamiglio
  • Patent number: 8326589
    Abstract: In the present invention, in a case where a stable equilibrium point calculation is not calculable by using a Newton method, a damping factor of a mechanical system differential equation of a generator is set to be greater than an actual value of the generator of the power system. By applying pseudo-transient simulation to the nonlinear differential algebraic equation of the power system including the mechanical system differential equation of the generator, in which the damping factor is set, a norm of a mechanical system equation is found. If the found norm meets a predetermined condition, variable values of the power system at a time when the norm is found are set as initial values of the nonlinear differential algebraic equation of the power system. A stable equilibrium point is determined by applying the Newton method to the nonlinear differential algebraic equation in which the initial values are set.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: December 4, 2012
    Assignees: The Tokyo Electric Power Company, Incorporated, BIGWOOD SYSTEMS, Incorporated
    Inventors: Hsiao-Dong Chiang, Hua Li, Yasuyuki Tada, Ryuya Tanabe
  • Patent number: 8326448
    Abstract: A method and a device for operating a machine tool are disclosed, wherein a machining operation of the machine tool is controlled by a parts program by storing a simulated configuration of the machine tool in the parts program, determining an actual configuration of the machine tool, comparing the actual configuration with the simulated configuration of the machine tool stored in the parts program, and generating a warning message if the actual configuration is not in conformance with the simulated configuration. This prevents errors in the machining process resulting from a discrepancy between the configuration of the machine tool used in the simulation of the parts program and the configuration of the actual machine tool during the actual machining operation.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: December 4, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventor: Roland Schneider
  • Patent number: 8321043
    Abstract: In a simulation apparatus, a difference data generation part compares a simulation result of an existing sound generator with a simulation result of a virtual sound generator, and generates difference data representing a difference between the simulation result of the existing sound generator and the simulation result of the virtual sound generator. A characteristic correction part corrects a measurement result of the existing sound generator based on the difference data, and generates virtual sound generator prediction data representing the sound generation characteristic of the virtual sound generator according to the corrected measurement result of the existing sound generator.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: November 27, 2012
    Assignee: Yamaha Corporation
    Inventor: Hirofumi Onitsuka
  • Patent number: 8321189
    Abstract: A method and apparatus is disclosed for improving analysis and design of physical structures whose dynamic behavior can be modeled as a linear dynamical system. The method and apparatus is operative to decouple the equations of motion of any linear dynamical systems therewith by processing the equations of motion of any linear dynamical system using a decoupling unit.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: November 27, 2012
    Inventors: Fai Ma, Matthias Morzfeld, Ali Imam
  • Patent number: 8315846
    Abstract: A design data merging apparatus includes a merging determining unit that determines, for a plurality of design data of which each has product name information and has a same identifier for uniquely identifying a product, whether the product name information given to the plurality of design data are the same, and a merged data creating unit that merges the plurality of design data when it is determined by the merging determining unit that the product name information given to the plurality of design data are the same, and creates merged data obtained by merging a plurality of design data.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: November 20, 2012
    Assignee: Fujitsu Limited
    Inventors: Takeo Nakamura, Miki Takagi, Junko Taira
  • Patent number: 8315840
    Abstract: Methods and apparatus, including computer program products, for receiving in a Computer Aided Design (CAD) tool result information and load information from a first analysis program, the result information determined by performing an analysis of a plurality of physical elements in a CAD model. And providing one or more of the result information or the load information from the CAD tool to a second analysis program.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: November 20, 2012
    Assignee: Autodesk, Inc.
    Inventor: Nicolas Mangon
  • Patent number: 8311784
    Abstract: Provided is a method of designing a coaxial dual-tube type hot gas duct for a very-high-temperature reactor. When determining the outer diameter of an inner tube and the inner diameter of a pressure tube, both of which defines an annular part of the hot gas duct having a dual-tube shape, one selected from hydraulic heads, flow rates, and hydraulic heads of very-high-temperature helium gas flowing to a very-high-temperature region and low-temperature helium gas flowing to a low-temperature region is taken into consideration as well as is a relation of about heat balance model, so that it is possible to minimize flow induced vibrations caused by the flow of a fluid.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: November 13, 2012
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Kee-Nam Song, Yong-Wan Kim, Jong-Wha Chang, Won-Jae Lee
  • Patent number: 8306790
    Abstract: An acoustic characteristics optimization model analysis apparatus includes a finite element model generation unit; a boundary element model generation unit; an acoustic transfer function calculation unit; a nodal point association unit; and a sound pressure calculation unit that incorporates the plurality of nodal points of the finite element model correlated with the plurality of nodal points of the boundary element model by the nodal point association unit into the acoustic transfer function calculated by the acoustic transfer function calculation unit to calculate a sound pressure transmitted from the finite element model to the predetermined position.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: November 6, 2012
    Assignees: Aisin AW Co., Ltd., Vanderplaats R & D Inc.
    Inventors: Takanori Ide, Masaki Otomori, Yohei Kitamura, Iku Kosaka
  • Patent number: 8306793
    Abstract: Methods and systems for simulating acoustic field resulted from particular excitations by performing vibro-acoustic analysis of a structure are disclosed. According to one aspect of the present invention, vibro-acoustic analysis of a structure is performed in two stages. First, steady state dynamic (SSD) responses are obtained using a finite element analysis model of a structure subject to harmonic excitations (e.g., external nodal loads, pressures, or enforced motions (e.g., ground motions), etc.). The steady state responses are the results (e.g., nodal velocities at desired locations of the structure) obtained in a finite element analysis in frequency-domain. Second, an acoustic analysis is conducted according to Helmholtz equation using the nodal velocities obtained at desired locations on the structure as a boundary condition. The acoustic analysis can be performed in a number of procedures (e.g., boundary element method, Rayleigh approximation method, etc.).
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: November 6, 2012
    Assignee: Livermore Software Technology Corporation
    Inventors: Yun Huang, Mhamed Souli, C. Cleveland Ashcraft
  • Patent number: 8301417
    Abstract: According to a preferred embodiment, a method for identifying the analytical transitional cross-sections of a rigid transport element is disclosed. The method includes providing a 3D model of a rigid transport element, a list of total edges from the 3D model, a list of total faces from the 3D model, and a list of connecting edges from the 3D model, identifying all edges from said list of total edges which have connectivity with any edge in the list of connecting edges and are part of a cross-section, placing the identified edges into a list of cross-section edges, and identifying the analytical cross-section that lies on the plane defined by the edges in said list of cross-section edges.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: October 30, 2012
    Assignee: The Boeing Company
    Inventor: Weigang Hu
  • Patent number: 8301424
    Abstract: Control points needed to generate a curve becoming the route of a deformable linear structure from respective pieces of passing point information defined at two passing points are arranged and the initial arrangement of control points needed to generate a curve is determined by performing re-arrangement of the control points, on the basis of a positional relation between the control points thus arranged. The curve between two points is re-generated from the initial arrangement thus determined while modifying the arrangement of one or more control points, the re-generated curves are then evaluated and a curve meeting a predetermined condition is extracted from among the curves.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: October 30, 2012
    Assignee: Fujitsu Limited
    Inventors: Masayuki Kidera, Kouji Demizu
  • Publication number: 20120271606
    Abstract: Methods and systems are provided for determining a temperature of a motor of a vehicle having an ignition when the ignition is turned on following a period of time in which the ignition had been turned off. An amount of time for which the vehicle had been turned off is determined. A motor temperature model is run using a time step to simulate the amount of time for which the vehicle had been turned off to determine an initial value of the temperature of the motor.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 25, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chia-Chou YEH, Steven E. SCHULZ, Daniel J. BERRY
  • Patent number: 8296687
    Abstract: A method, system and computer readable medium for analyzing a process performed by a semiconductor processing tool. The method includes inputting data relating to a process performed by the semiconductor processing tool, and inputting a first principles physical model relating to the semiconductor processing tool. First principles simulation is performed using the input data and the physical model to provide a first principles simulation result; and the first principles simulation result is used to determine a fault in the process performed by the semiconductor processing tool.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: October 23, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Eric J. Strang, Andrej Mitrovic
  • Patent number: 8296110
    Abstract: A forming speed determination method for determining a forming speed of a press-processing device with a plurality of measurement points on a sheet material to conduct press-forming of the sheet material with a press-processing device at a predetermined forming speed. Strain states at respective points on the press-formed sheet material are plotted on a forming limit diagram including the forming limit curve of a sheet material to produce a strain distribution chart. Subsequently, the closest point to the forming limit curve among the points is defined as a specific measurement point. When this specific measurement point is located in the bulge region, the forming speed of a press-processing device is decreased to be slower than the above-mentioned predetermined forming speed. Meanwhile, when this specific measurement point is located in the draw region, the forming speed of a press-processing device is increased to be faster than the above-mentioned predetermined forming speed.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: October 23, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yuichi Nagai, Hideo Meguri
  • Patent number: 8296115
    Abstract: Methods and systems may be provided simulating forming a wide variety of directional wellbores including wellbores with variable tilt rates and/or relatively constant tilt rates. The methods and systems may also be used to simulate forming a wellbore in subterranean formations having a combination of soft, medium and hard formation materials, multiple layers of formation materials and relatively hard stringers disposed throughout one or more layers of formation material. Values of bit walk rate from such simulations may be used to design and/or select drilling equipment for use in forming a directional wellbore.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: October 23, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Shilin Chen
  • Patent number: 8291589
    Abstract: A method for use in repairing gas turbine engine components includes applying a stress to a first gas turbine engine component to cause surface cracking on the first gas turbine engine component and establishing a location of an elevated stress region of a second gas turbine engine component based upon the location of the surface cracking on the first gas turbine engine component.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: October 23, 2012
    Assignee: United Technologies Corporation
    Inventors: Ephraim C. Davis, Christopher J. Bischof
  • Patent number: 8296109
    Abstract: Methods and systems for enabling simulation of material aging effect of chrono-rheological materials in computer aided engineering (CAE) analysis are disclosed. According to one aspect, a set of material property tests is conducted for a chrono-rheological material of interest. Each test obtains a series of material properties such as relaxation test data at different age. The relaxation test data are measured by maintaining a specimen of the chrono-rheological material at a predetermined strain. A set of first and second time-dependent material aging effect parameters is determined by shifting and matching the series of relaxation test data between each pair of the tests.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: October 23, 2012
    Assignee: Livermore Software Technology Corporation
    Inventors: William W. Feng, John O. Hallquist
  • Patent number: 8286730
    Abstract: A method of maintaining a desired downhole pressure during a drilling operation can include measuring a parameter with a sensor, communicating actual parameter values from the sensor to a predictive device, training the predictive device to output predicted parameter values in response to input of the actual parameter values, and outputting the predicted parameter values from the predictive device when the predictive device ceases receiving the actual parameter values. A well drilling system can include a predictive device which outputs predicted parameter values in response to input of actual parameter values to the predictive device. The predictive device continues to output the predicted parameter values, even when the predictive device fails to receive valid actual parameter values. Another well drilling system includes a data validator which communicates valid actual parameter values to the predictive device, but does not communicate invalid actual parameter values to the predictive device.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: October 16, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Charles M. Pool, Nancy Davis, Frank Urias, Neal G. Skinner
  • Patent number: 8285529
    Abstract: According to an aspect of an embodiment, a high-speed operation method for directing a computer to process a coefficient matrix constituting simultaneous equations generated by modeling an analysis target into a mesh by using the finite element method and the boundary element method, said method includes obtaining two edges that are not on a same plane and that are the closest to each other from among edges defined in a mesh of a boundary modeled by the boundary element method, and ordering, in a vicinity of on-diagonal elements of the coefficient matrix, matrix elements in the coefficient matrix of simultaneous equations obtained for the two edges that are the closest to each other.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: October 9, 2012
    Assignee: Fujitsu Limited
    Inventor: Koichi Shimizu
  • Patent number: 8280708
    Abstract: In a method, a data processing system and a computer program for the configuration of tools and/or processes for the manufacturing of formed metal parts, raw data (r) for the description of a geometry and of a condition of a formed metal part are calculated from a set of nominal simulation parameters (d,n) through the simulation of a metal forming process. From a set of nominal simulation parameters (d,n) in a simulation run a set of raw data is calculated and saved, the preceding step is repeated several times with a variation of the simulation parameters (d,n), and as a result of this further sets of raw data (r) are generated and saved, and a statistical analysis (10) of several or of all the saved sets of raw data (r) is carried throughout for the purpose of calculating statistical characteristic values (Cr) of the raw data (r).
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: October 2, 2012
    Assignee: Autoform Engineering GmbH
    Inventors: Waldemar Kubli, Titus Zwickl, Oliver Brühl
  • Patent number: 8275589
    Abstract: An efficient and cost-effective technique is provided to perform modeling of a reservoir in a subterranean structure. A compartment model of fluid compartments in a reservoir is generated, and based on the compartment model and a geomechanical model of the subterranean structure, movement of a ground surface due to volumetric change of the compartments is calculated. Satellite measurements of the ground surface are received over time, where the received satellite measurements of the ground surface over time indicate movement of the ground surface. The movement of the ground surface indicated by the received satellite measurements is compared with the calculated movement, and based on the comparing, one or more properties of the geomechanical model are adjusted.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: September 25, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Bernard Andre Montaron, Kamal Babour, George Zangl, Rutger Gras, Andrew Pearce