公开(公告)号：US10853535B2

公开(公告)日：2020-12-01

申请号：US15457388

申请日：2017-03-13

Applicant: Dassault Systemes Simulia Corp.

Inventor： Mikhail Belyi

IPC: G06F30/20 ,  G06F111/10

Abstract: A computer-implemented method is provided for simulating a modal frequency response of a real-world object. The computer-implemented method includes dividing a plurality of excitation frequencies into a plurality of excitation frequency subsets, calculating modal frequency responses for at least a portion of the excitation frequencies in a given excitation frequency subset, and generating a simulation of the real-world object based at least in part on the modal frequency responses.

公开(公告)号：US10061878B2

公开(公告)日：2018-08-28

申请号：US14978629

申请日：2015-12-22

Applicant: Dassault Systemes Simulia Corp.

Inventor： Pavel A. Bouzinov ,  Mikhail Belyi

IPC: G06F17/10 ,  G06F17/50 ,  G06F17/11

CPC classification number: G06F17/5018 ,  G06F17/11 ,  G06F2217/16

Abstract: Embodiments provide methods and systems for modeling mechanical features of a structural dynamic system. A method according to an embodiment provides, in computer memory, a finite element model representing a structural dynamic system. Next, in a processor coupled to the computer memory, a system of equations with a first term representing a linear combination of a mass, a stiffness, and a damping of the finite element model and a second term representing modal damping is solved. According to such an embodiment, the system of equations is solved using the Sherman-Morrison-Woodbury formula or a preconditioned iterative method. In turn, an improved 3D model of a real world object based on the finite element model is formed utilizing results of the solved system of equations with the finite element model and modal damping to model mechanical features of the represented structural dynamic system.

公开(公告)号：US20170185706A1

公开(公告)日：2017-06-29

申请号：US15457388

申请日：2017-03-13

Applicant: Dassault Systemes Simulia Corp.

Inventor： Mikhail Belyi

IPC: G06F17/50

CPC classification number: G06F17/5009 ,  G06F2217/16

Abstract: A computer-implemented method is provided for simulating a modal frequency response of a real-world object. The computer-implemented method includes dividing a plurality of excitation frequencies into a plurality of excitation frequency subsets, calculating modal frequency responses for at least a portion of the excitation frequencies in a given excitation frequency subset, and generating a simulation of the real-world object based at least in part on the modal frequency responses.

公开(公告)号：US20170177769A1

公开(公告)日：2017-06-22

申请号：US14978629

申请日：2015-12-22

Applicant: Dassault Systemes Simulia Corp.

Inventor： Pavel A. Bouzinov ,  Mikhail Belyi

IPC: G06F17/50 ,  G06F17/11

CPC classification number: G06F17/5018 ,  G06F17/11 ,  G06F2217/16

Abstract: Embodiments provide methods and systems for modeling mechanical features of a structural dynamic system. A method according to an embodiment provides, in computer memory, a finite element model representing a structural dynamic system. Next, in a processor coupled to the computer memory, a system of equations with a first term representing a linear combination of a mass, a stiffness, and a damping of the finite element model and a second term representing modal damping is solved. According to such an embodiment, the system of equations is solved using the Sherman-Morrison-Woodbury formula or a preconditioned iterative method. In turn, an improved 3D model of a real world object based on the finite element model is formed utilizing results of the solved system of equations with the finite element model and modal damping to model mechanical features of the represented structural dynamic system.