|Table of Contents|

Evolutionary Structural Optimization Design of Continuum Based on ANSYS Platform and Its Application(PDF)

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

Issue:
2008年01期
Page:
23-31
Research Field:
Publishing date:
2008-03-20

Info

Title:
Evolutionary Structural Optimization Design of Continuum Based on ANSYS Platform and Its Application
Author(s):
XU Qiang;  LI Xiang-yuan;  CHEN Qing;  SUN Fei-fei
Department of Architectural Engineering, Tongji University, Shanghai 200092, China
Keywords:
continuum structure;  evolutionary structural optimization;  topology optimization;  stress sensitivity
PACS:
TU311
DOI:
-
Abstract:
Based on the traditional evolutionary structural optimization(ESO)and in terms of ANSYS analysis software platform, as well as the concept of optimal route of load transfer, it was developed that a structural topology optimization method for continuum structure was provided with a new element removal strategy, so that the maximal stress of optimizing structure would fluctuate as little as possible in the iterative process of evolutionary optimization and the one of the optimum structure would not exceed the allowable stress. Based on the displacement sensitivity of structure, the stress sensitivity was derived comparatively strictly. Then, a procedure of an improved structural topology optimization was given. Finally, the improved ESO method was applied to several engineering examples and the results demonstrate that the proposed method has a comparative better efficiency with the minimum-weight as the objective function. The shape of topology structure approaches the one in engineering practical requirements, which indicates that the proposed method is feasible and effective for the problem of continuum topology optimization.

References:

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Last Update: 2008-03-20