Back to Search Start Over

Jacobian-Based Topology Optimization Method Using an Improved Stiffness Evaluation.

Jacobian-Based Topology Optimization Method Using an Improved Stiffness Evaluation.

Authors :
Mohui Jin
Xianmin Zhang
Zhou Yang
Benliang Zhu
Source :
Journal of Mechanical Design. Jan2018, Vol. 140 Issue 1, p1-11. 11p.
Publication Year :
2018

Abstract

A Jacobian-based topology optimization method is recently proposed for compliant parallel mechanisms (CPMs), in which the CPMs' Jacobian matrix and characteristic stiffness are optimized simultaneously to achieve kinematic and stiffness requirement, respectively. Lately, it is found that the characteristic stiffness fails to ensure a valid topology result in some particular cases. To solve this problem, an improved stiffness evaluation based on the definition of stiffness is adopted in this paper. This new stiffness evaluation is verified and compared with the characteristic stiffness by using several design examples. In addition, several typical benchmark problems (e.g., displacement inverter, amplifier, and redirector) are solved by using the Jacobian-based topology optimization method to show its general applicability. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10500472
Volume :
140
Issue :
1
Database :
Academic Search Index
Journal :
Journal of Mechanical Design
Publication Type :
Academic Journal
Accession number :
126691520
Full Text :
https://doi.org/10.1115/1.4038332