Single-material structure topological optimization method and system considering structural stability

The invention discloses a single-material structure topological optimization method and system considering structure stability, and belongs to the field of structure topological optimization. The method includes the following steps: constructing an optimization model which takes an expansion coeffic...

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Bibliographic Details
Main Authors GAO LIANG, CAO WEIXIAN, TONG HAIFENG, LI HAO
Format Patent
LanguageChinese
English
Published 30.07.2021
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention discloses a single-material structure topological optimization method and system considering structure stability, and belongs to the field of structure topological optimization. The method includes the following steps: constructing an optimization model which takes an expansion coefficient as a design variable, takes structure total flexibility minimization as a target and takes volume and buckling load factors as constraint conditions; calculating the total flexibility, volume and buckling load factor of the structure under the current expansion coefficient and the level set function; calculating a new expansion coefficient, and interpolating a new level set function; determining whether the difference between the current expansion coefficient and the reference value is smaller than a threshold value, if so, ending optimization, and determining the structure topology according to the current level set function; otherwise, continuing to optimize. Buckling load factor constraints based on expansi
Bibliography:Application Number: CN202110391359