|Table of Contents|

Weakness of Level Set Method in Topology Optimization and Its Improvement(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2011年02期
Page:
119-126
Research Field:
Publishing date:
2011-06-20

Info

Title:
Weakness of Level Set Method in Topology Optimization and Its Improvement
Author(s):
WANG Chao-yi1; 2;  FENG Jian-hu1
1. School of Sciences, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Anshan Iron & Steel Group Corporation, Anshan 114009, Liaoning, China
Keywords:
topology optimization;  level set method;  topology derivative;  finite element method
PACS:
TU311
DOI:
-
Abstract:
Structural topology optimization has been identified as one of the most challenging tasks in structural design. Level set method has many merits on topological optimization problems. But it also has some defects. For example, the higher dependence on initial topology of complex structures, in which proper number and position of holes are included, cannot be determined in advance. Furthermore, in order to greatly improve computational efficiency, another topology optimization method, we called it topology derivative-level set algorithm, was proposed by unifying topology derivative theory with the level set method. Numerical experiments illustrated the weakness of the traditional level set method and the improvement of the topology derivative-level set algorithm. The numerical results show that the topology derivative-level set algorithm can be used for topology optimization of continuum structures.

References:

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Last Update: 2011-06-20