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| TOPOLOGY OPTIMIZATION FOR STIFFENER LAYOUT OF THIN PLATE STRUCTURES BASED ON LEVEL SET METHOD |
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Abstract A topology optimization approach for stiffener layout of thin plate structures is proposed based on level set method. The thin plate and stiffeners are considered as plates with different bending stiffness, with use of equivalent stiffness method. Then the location of stiffeners were described by Level set method to perform topology optimization. With the objective of maximizing structural stiffness, several typical cases with various loading and boundary conditions were selected as numerical examples. The optimized stiffened plates of the proposed method were compared with optimized results in literatures to verified the validity of the proposed method. Numerical examples showed that the proposed method can provide clear stiffener layout and avoid “gray elements”.
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Received: 28 June 2018
Published: 28 December 2018
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| Fund:国家自然科学基金;国家自然科学基金;国家自然科学基金;辽宁省自然科学基金 |
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2018, Vol. 39 
