收录:
摘要:
In this paper, a model of topology optimization with linear buckling constraints is established based on an independent and continuous mapping method to minimize the plate/shell structure weight. A composite exponential function (CEF) is selected as filtering functions for element weight, the element stiffness matrix and the element geometric stiffness matrix, which recognize the design variables, and to implement the changing process of design variables from "discrete" to "continuous" and back to "discrete". The buckling constraints are approximated as explicit formulations based on the Taylor expansion and the filtering function. The optimization model is transformed to dual programming and solved by the dual sequence quadratic programming algorithm. Finally, three numerical examples with power function and CEF as filter function are analyzed and discussed to demonstrate the feasibility and efficiency of the proposed method.
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来源 :
ACTA MECHANICA SINICA
ISSN: 0567-7718
年份: 2016
期: 4
卷: 32
页码: 649-658
3 . 5 0 0
JCR@2022
ESI学科: ENGINEERING;
ESI高被引阀值:166
中科院分区:4
归属院系: