Design of a Stiffened Space Membrane Structure Using Explicit Topology Optimization

Author:

Wang Yue12,Zhang Hua34,Du Zongliang12,Zhang Weisheng12,Guo Xu12

Affiliation:

1. Dalian University of Technology State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, International Research Center for Computational Mechanics, , Dalian 116023 , China ;

2. Ningbo Institute of Dalian University of Technology , No. 26, Yucai Road, Jiangbei District, Ningbo 315016 , China

3. Aerospace Systems Engineering Shanghai , Shanghai 201109 , China ;

4. Shanghai Key Laboratory of Spacecraft Mechanism , Shanghai 201108 , China

Abstract

Abstract In this work, a hybrid topology optimization scheme based on the moving morphable component (MMC) method is presented for the design of stiffened membrane structure. The stiffened membrane structure is composed of a base membrane, reinforcing stiffeners, and functional cells. For an accurate and effective simulation of the structure, a hybrid structure model with multiple element types is constructed. In this study, MMC components used as the basic elements for the topology description will include several different types: bar elements for the stiffeners and continuum elements for the base membrane and functional cells. The base membrane is modeled using bi-modulus material. With this approach, the distribution of element types in different parts can be changed as the components are moved around during the optimization process. Some numerical examples are presented to validate the effectiveness of the proposed scheme.

Funder

National Natural Science Foundation of China

Publisher

ASME International

Subject

Computer Graphics and Computer-Aided Design,Computer Science Applications,Mechanical Engineering,Mechanics of Materials

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