基于耐撞性的碳纤维/聚丙烯泡沫夹芯板结构优化研究*

doi:10.19562/j.chinasae.qcgc.2020.06.020

汽车工程 ›› 2020, Vol. 42 ›› Issue (6): 840-846.doi: 10.19562/j.chinasae.qcgc.2020.06.020

• • 上一篇

基于耐撞性的碳纤维/聚丙烯泡沫夹芯板结构优化研究^*

崔岸, 徐晓倩, 孙文龙, 杨伟丽, 黄显晴, 刘天赐

吉林大学,汽车仿真与控制国家重点实验室,长春 130025

收稿日期:2019-06-04 出版日期:2020-06-25 发布日期:2020-07-16
通讯作者: 徐晓倩,硕士研究生,E-mail:2918081022@qq.com
基金资助:
国家自然科学基金(2011BAG03B01)资助

Study on Crashworthiness Optimization of Carbon-fiberSandwich Panel Structure with Polypropylene Foam Core

Cui An, Xu Xiaoqian, Sun Wenlong, Yang Weili, Huang Xianqing, Liu Tianci

Jilin University, State Key Laboratory of Automotive Simulation and Control, Changchun 130025

Received:2019-06-04 Online:2020-06-25 Published:2020-07-16

摘要/Abstract

摘要： 针对汽车轻量化和耐撞性要求,制备了一种碳纤维/聚丙烯泡沫夹芯板复合结构,结合试验与仿真分析,研究该夹芯板的相关力学性能;对上下面板厚度、夹芯泡沫厚度和密度进行多目标优化,获得泡沫厚度和密度的最优方案;将该结构应用于某汽车顶盖,对夹芯泡沫的分布进行变密度拓扑优化,在保证吸能特性的前提下减轻质量;对该车顶部进行压溃仿真的结果表明,优化后夹芯板汽车顶盖的结构刚度和吸能性能明显提高,且质量大幅减轻,满足了汽车耐撞性和轻量化要求。

关键词: 碳纤维/聚丙烯泡沫夹芯板, 多目标优化, 拓扑优化, 耐撞性, 轻量化

Abstract: In view of the requirements of vehicle lightweight and crshworthiness, a carbon fiber sandwich panel composite structure with polypropylene foam core is manufactured, tested and simulated to study its mechanical performance. Then a multi-objective optimization is carried out on the thickness of facial sheets and foam core and the density of foam core to get the optimum scheme of thickness and density. Finally, the structure is applied to a car roof, with a topology optimization based on desity method conducted on the distribution of foam core for reducing roof mass while assuring its energy-absorbing characteristics. The results of roof crush test show that the stiffness and energy absorption performance of the car roof structure with optimized sandwich panel are obviously improved with a significant reduction in mass, meeting the crashworthiness and lightweight requirements of the vehicle.

Key words: carbon fiber sandwich panel with polypropylene foam core, multi-objective optimization, topology optimization, crashworthiness, lightweight

崔岸, 徐晓倩, 孙文龙, 杨伟丽, 黄显晴, 刘天赐. 基于耐撞性的碳纤维/聚丙烯泡沫夹芯板结构优化研究^*[J]. 汽车工程, 2020, 42(6): 840-846.

Cui An, Xu Xiaoqian, Sun Wenlong, Yang Weili, Huang Xianqing, Liu Tianci. Study on Crashworthiness Optimization of Carbon-fiberSandwich Panel Structure with Polypropylene Foam Core[J]. Automotive Engineering, 2020, 42(6): 840-846.

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基于耐撞性的碳纤维/聚丙烯泡沫夹芯板结构优化研究^*

Study on Crashworthiness Optimization of Carbon-fiberSandwich Panel Structure with Polypropylene Foam Core

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