Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2002-03-01

Journal: Chinese Journal of Mechanical Engineering (English Edition)

Included Journals: EI、Scopus

Volume: 15

Issue: 1

Page Number: 22-26

ISSN: 10009345

Abstract: Numerical instabilities are often encountered in FE solution of continuum topology optimization. The essence of the numerical instabilities is given from the inverse partial differential equation (PDE) point of view. On the basis of the strict mathematical theory, a method, named as window filter and multi-grid method, which solves the numerical instabilities, is proposed. Convergent analyses and a numerical example are presented.