Patents Examined by Shambhavi Patel
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Patent number: 8392162Abstract: A method and system for modeling an inflatable supplemental restraint device for a vehicle includes operating a simulation system according to a first step in which the restraint device is modeled in a fully inflated configuration using a finite element model. The modeled airbag is then deflated and flattened. The flattened airbag is subjected to simulated folding using a finite element model. Inputs drawn from the results of successive portions of the simulation are used in the later modeling steps.Type: GrantFiled: February 2, 2006Date of Patent: March 5, 2013Assignee: Ford Global TechnologiesInventors: Fubang Wu, Li Chai, Nripen Saha
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Patent number: 8386221Abstract: 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: GrantFiled: May 3, 2010Date of Patent: February 26, 2013Assignee: Nuovo Pignone S.p.A.Inventors: Leonardo Tognarelli, Paolo Di Sisto, Michelangelo Fabbrizzi, Roberto Merlo
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Patent number: 8374839Abstract: The simulation information creating part 111 generates random numbers corresponding to the correlation coefficient data between the simulation model parameters, and also creates the simulation model library having correlated model parameters with variations, and the simulation net list for the objective characteristic, by Monte Carlo method using the typical simulation model library, the standard deviations for the plural simulation model parameters and the simulation net list for the typical objective characteristic. The simulation part 112 obtains samples having the objective characteristics with variations. The yield estimation part 120, estimates the yields by determining whether the samples satisfy the predetermined specification or not (Pass or Fail), wherein by repeating the determination by making the simulations again only for the samples on which the filter having the function of learning the boundary for decision of Pass or Fail did not determine as Pass.Type: GrantFiled: December 7, 2009Date of Patent: February 12, 2013Assignee: Jedat Inc.Inventor: Shuhei Satoh
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Patent number: 8374827Abstract: To provide a numerical simulation apparatus capable of executing a numerical simulation with high speed and precision by reducing computational complexity. A numerical simulation apparatus that executes a numerical simulation using a wave function which is a solution of a time dependent Schrödinger equation includes: a real time evolution calculation unit that calculates a second wave function while evolving the second wave function from an initial time in increments of a predetermined time period, the second wave function being obtained by applying a central difference approximation in a real-space finite-difference method to a first wave function expressed using a propagator, and being expressed using a Bessel function; and a calculation result storage unit that stores a calculation result of the second wave function obtained at each time by the time evolution calculation unit while evolving the second wave function in increments of the predetermined time period.Type: GrantFiled: September 7, 2007Date of Patent: February 12, 2013Assignee: Osaka UniversityInventors: Kikuji Hirose, Hidekazu Goto
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Patent number: 8364456Abstract: 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: GrantFiled: January 10, 2008Date of Patent: January 29, 2013Assignee: The MathWorks, Inc.Inventors: Vijaya Raghavan, Zhihong Zhao
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Patent number: 8364453Abstract: A method and apparatus for describing the statistical orientation distribution of nonspherical particles in a simulation of a process wherein a mold cavity is filled with a suspension that contains a large number of nonspherical particles. The method and apparatus may be applied to the analysis of an injection molding process for producing a fiber reinforced molded polymer component or of a metal casting process for producing a fiber reinforced metal product. The results of these analyses may be used to determine tension and warping aspects of the component, and to optimize the process conditions used in the production process.Type: GrantFiled: December 21, 2009Date of Patent: January 29, 2013Assignee: Magma Giessereitechnologie GmbHInventors: Joachim Linn, Matthias Moog
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Patent number: 8352219Abstract: 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: GrantFiled: February 4, 2008Date of Patent: January 8, 2013Assignee: Keio UniversityInventors: Kunihiro Takahashi, Toshiaki Sakurai, Tatsuya Nakada, Kengo Inoue
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Patent number: 8346529Abstract: Aspects of the present invention are directed to improving the speed of event-driven simulation by manipulating delta delays in a system model to reduce delta cycle executions. The manipulation is performed in a manner that preserves delta cycle accurate timing on selected signals of the system, which may be of interest to a designer. Methods and systems are provided for identifying the signals of interest, and for determining portions of the design that may have delta delays retimed. Preserving the timing on the signals of interest ensures that race conditions and glitches present in the design on the signals of interest are still viewable by the designer. To reduce simulation time, delta delays may be moved from high activity signals to low activity signals, the total number of delta delays may be reduced, or a number of processes executed may be reduced.Type: GrantFiled: December 29, 2009Date of Patent: January 1, 2013Assignee: Mentor Graphics CorporationInventors: Sachin Kakkar, John Ries
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Patent number: 8346521Abstract: A method of determining the feasibility of a proposed structure analysis process is disclosed. The process involved the electron beam excitation of x-rays from a multi-layered structure. The method comprises generating predicted x-ray data represents the x-ray excitation response of the multi-layered structure according to one or more sets of process conditions. The x-ray data are generated using structure data defining the structure and composition of the layers. The effects upon the x-ray data of changes to the structure data are then analyzed in accordance with one or more predetermined feasibility criteria, so as to determine the feasibility of performing the proposed structure analysis process upon the multi-layered structure.Type: GrantFiled: May 16, 2007Date of Patent: January 1, 2013Assignee: Oxford Instruments Nanotechnology Tools LimitedInventors: Peter John Statham, Charles Penman
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Patent number: 8335675Abstract: A method, system, and computer-readable storage medium are disclosed for simulating paint behavior. In one embodiment, input representing a deposition of a first type of paint and a second type of paint on a canvas may be received. The first type of paint has a first set of fluid properties, and the second type of paint has a second set of fluid properties differing from the first set. In one embodiment, a motion of the first type of paint and the second type of paint on the canvas may be simulated dependent on the respective sets of fluid properties. The simulated motion of the second type of paint differs from the simulated motion of the first type of paint. An effect of the deposition of the paint may be determined dependent on the simulation. An image representing the effect of the deposition of the paint may be displayed.Type: GrantFiled: February 27, 2009Date of Patent: December 18, 2012Assignee: Adobe Systems IncorporatedInventors: Stephen J. DiVerdi, Sunil Hadap
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Patent number: 8335669Abstract: 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: GrantFiled: October 31, 2008Date of Patent: December 18, 2012Assignee: Bridgestone Sports Co., Ltd.Inventors: Takuichi Shimizu, Hideo Matsunaga
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Patent number: 8335673Abstract: A system model of a real-world system includes a multi-level hierarchy of Capabilities, where each Capability includes a Verb specifying an action and an Object acted on by the Verb. The system model also contains one or more multi-level Performer hierarchies, where each Performer hierarchy includes a plurality of Performers each having an associated lifecycle and at least one associated Capability provided or required by the Performer. In addition, a multi-level Location hierarchy associates one of a plurality of Locations with each Performer. A plurality of Capability Instances define requirement and provision of Capabilities by Performers in the one or more multi-level Performer hierarchies. In response to a query specifying a Location and a time, a view of the system model for the specified Location and time is output.Type: GrantFiled: December 2, 2009Date of Patent: December 18, 2012Assignee: International Business Machines CorporationInventors: Swaminathan Balasubramanian, Jay K. Strosnider
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Patent number: 8332191Abstract: The present disclosure relates to determining attenuation factors relating to an electromagnetic signal passing through, a conductive material seen by a real sensor. A sensor is provided and disposed proximate to the material. An alternating current is passed through the sensor and the impedance of the sensor is measured. The impedance of an ideal coil is obtained from the measured impedance using electromagnetic modeling combined with a circuit analysis of the coil impedance, and the attenuation factors for the real coil in straight or feedback mode are determined by electromagnetic modeling of casing attenuation factors and impedance of an ideal coil combined with equivalent circuit modeling of the sensor transfer functions. The attenuation factors seen by the real sensor may be determined in real-time or post-survey. The material may be magnetic or non-magnetic.Type: GrantFiled: December 18, 2009Date of Patent: December 11, 2012Assignee: Schlumberger Technology CorporationInventors: Richard A. Rosthal, Hong Zhang, Cyrille Levesque, Guozhong Gao, H. Frank Morrison, David Alumbaugh
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Patent number: 8326589Abstract: 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: GrantFiled: August 4, 2010Date of Patent: December 4, 2012Assignees: The Tokyo Electric Power Company, Incorporated, BIGWOOD SYSTEMS, IncorporatedInventors: Hsiao-Dong Chiang, Hua Li, Yasuyuki Tada, Ryuya Tanabe
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Patent number: 8321194Abstract: Systems and method for providing a microgrid power analytics portal for mission critical power systems are provided. The techniques disclosed herein provides for real-time modeling, evaluation, and commodity market pricing and optimization for an electrical network that includes microgrids using data collected from virtually any digital data source. The portal is platform independent and can be configured to collect and aggregate real-time data from sensors interfaced with components of the electrical network regardless of proprietary architectures or vendor-specific limitations imposed by the sensors or data collection software.Type: GrantFiled: September 30, 2010Date of Patent: November 27, 2012Assignee: Power Analytics CorporationInventors: Kevin Meagher, David Loiselle, Rodger Koopman
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Patent number: 8311792Abstract: A method for training a ranking application. The method includes ranking the help postings to create an initial ranking using initial parameter values, and storing user interactions with the help postings to obtain stored interactions. Simulations are performed using the stored interactions to generate revised parameter values for the ranking application. Performing the simulations includes calculating relevance values from the stored interactions, creating a test posting, assigning, to the test posting, an initial score and a relevance value randomly selected from the relevance values to generate a test ranking, and simulating user interactions with the test ranking to generate simulated rankings. The simulated rankings are analyzed to obtain revised parameter values. The method further includes ranking, using the revised parameter values, the help postings to generate a revised ranking, and displaying the help postings in the forum according to the revised ranking.Type: GrantFiled: December 23, 2009Date of Patent: November 13, 2012Assignee: Intuit Inc.Inventors: Igor A. Podgorny, Floyd J. Morgan, Derek Szydlowski
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Patent number: 8311784Abstract: 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: GrantFiled: March 3, 2009Date of Patent: November 13, 2012Assignee: Korea Atomic Energy Research InstituteInventors: Kee-Nam Song, Yong-Wan Kim, Jong-Wha Chang, Won-Jae Lee
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Patent number: 8306795Abstract: An object-oriented product configuration system generally includes a model tool for modeling a particular product line and a runtime tool for making the modeled information available to one or more external software applications. More specifically, the model tool enables a modeler to create a ProductModel object, which is an automatically populating electronic file containing all of the necessary information about a particular product line. Once the ProductModel is created, the runtime tool provides an external application with an interface for accessing and utilizing the information. Thus, a single source can deploy useful information to various types of software applications.Type: GrantFiled: September 23, 2002Date of Patent: November 6, 2012Assignee: Numatics, IncorporatedInventor: Shane A. Atkinson
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Patent number: 8306790Abstract: 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: GrantFiled: January 22, 2010Date of Patent: November 6, 2012Assignees: Aisin AW Co., Ltd., Vanderplaats R & D Inc.Inventors: Takanori Ide, Masaki Otomori, Yohei Kitamura, Iku Kosaka
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Patent number: 8296120Abstract: Iterative repair problems are generally solved using a combinatorial search method such as simulated annealing are addressed with a FPGA-based coarse-grain pipelined architecture to accelerate a simulated annealing based iterative repair-type event scheduling application. Over 99% of the work done by any simulated annealing algorithm is the repeated execution of three high-level steps: (1) generating, (2) evaluating, and (3) determining the acceptability of a new problem solution. A pipelined processor is designed to take advantage of these steps.Type: GrantFiled: June 22, 2009Date of Patent: October 23, 2012Assignee: Utah State UniversityInventors: Jonathan D. Phillips, Aravind Dasu