公开(公告)号：US20220198102A1

公开(公告)日：2022-06-23

申请号：US17126456

申请日：2020-12-18

Applicant: Dassault Systemes Simulia Corp.

Inventor： Harrington Harkness ,  Hossein Eshraghi ,  Hosein Haratian

IPC: G06F30/23 ,  G06F30/17

Abstract: A computer implemented method is configured to detect an unconstrained or low-stiffness connection between parts of an initial finite element (FE) model in a computer aided drafting (CAD) application. A stiffness matrix of the initial FE model is transformed into a reduced stiffness matrix. A singular mode is determined in the reduced stiffness matrix. The plurality of singular mode is identified as corresponding to an unconstrained or low-stiffness connection between parts of the FE model.