车身泡沫填充铝合金波纹夹芯板结构性能分析与优化*

doi:10.19562/j.chinasae.qcgc.2019.010.017

Abstract

Abstract: Aiming at the lightweighting and crashworthiness requirements of vehicle, a foam-filled aluminum alloy corrugated sandwich panel structure is prepared. The compression, bending and impact resistance of sandwich panel are investigated by tests and simulations, and the effects of the thickness of facial sheets and corrugated core sheet of sandwich panels on their structural impact resistance are analyzed by orthogonal tests, with reasonable combination of sheet thickness obtained. A topology optimization on the filled foam distribution of sandwich panel is conducted with variable density method so as to reduce the volume of filled foam as far as possible while ensuring its impact characteristics. Finally, the optimized sandwich panel structure is applied to the front door outer panel of a car to evaluate its performance. The results show that both the maximum intrusion and intrusion speed of the front door outer panel with sandwich structure reduce to different extents, meeting the design requirements in enhancing safety and reducing body mass of vehicle

Key words: corrugated sandwich panel; polyurethane foam; topology optimization; front door outer panel

Cui An, Liu Fangfang, Zhang Han, Hao Yuxing, Chen Chong & Zhang Rui. Performance Analysis and Optimization of Foam-filled Aluminum-alloy Corrugated Sandwich Panel Structure for Vehicle Body[J].Automotive Engineering, 2019, 41(10): 1221-1227.

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Performance Analysis and Optimization of Foam-filled Aluminum-alloy Corrugated Sandwich Panel Structure for Vehicle Body

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