Title:
ANALYSIS PROGRAM
Document Type and Number:
Japanese Patent JP2021111257
Kind Code:
A
Abstract:
To provide an analysis program that calculates a vibration mode that causes a response to an external force by dividing according to contribution of each deformation mode component.SOLUTION: An analysis program causes a computer to realize functions of: setting reduction points at a number of nodes smaller than total number of nodes among a plurality of nodes of a finite element model to be analyzed; executing, based on the set reduction points, static reduction of Guyan on an equation of motion of the finite element model to calculate a unique mode from the reduced equation of motion; calculating, based on the calculated unique mode and a response to an external force at the reduction points before executing the static reduction of Guyan, an excitation amount of the unique mode; expressing the response to an external force in at least one node before executing the static reduction of Guyan by a linear sum of the excitation amounts on the unique mode to calculate the contribution of the unique mode; and calculating contribution of a static deformation mode component and contribution of a dynamic deformation mode component separately for each unique mode.SELECTED DRAWING: Figure 5
Inventors:
YAMAMOTO SEIGO
HANEBUCHI MASAKI
HANEBUCHI MASAKI
Application Number:
JP2020004269A
Publication Date:
August 02, 2021
Filing Date:
January 15, 2020
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
G06F30/23
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Toshifumi Onuki
Akihiko Eguchi