基于效用函数理论的车身PP夹芯板结构参数优化与应用研究*

doi:10.19562/j.chinasae.qcgc.2019.03.017

汽车工程 ›› 2019, Vol. 41 ›› Issue (3): 354-359.doi: 10.19562/j.chinasae.qcgc.2019.03.017

• • 上一篇

基于效用函数理论的车身PP夹芯板结构参数优化与应用研究^*

崔岸,陈宠,张世广,于多年,张晗,孙文龙,郝裕兴

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:2018-01-18 出版日期:2019-03-25 发布日期:2019-03-25
通讯作者: 于多年,教授,博士,E-mail:yuduonian@126.com
基金资助:
国家科技支撑计划项目(2011BAG03B01)资助

A Study on Parametric Optimization of PP Core Sandwich Structure and Its Application to Car Body Based on Utility Function Theory

Cui An, Chen Chong, Zhang Shiguang, Yu Duonian, Zhang Han, Sun Wenlong & Hao Yuxing

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

Received:2018-01-18 Online:2019-03-25 Published:2019-03-25

摘要/Abstract

摘要： 为使采用聚丙烯(polypropylene, PP)芯材的夹芯板替代车身钢板获得更好的结构性能,选取车身板件的刚度、强度、质量和成本等多种设计属性,基于多属性效用函数理论,建立夹芯板结构参数(厚度)优化模型。将夹芯板结构设计的多目标优化问题转化为单目标优化问题,采用MATLAB编写参数优化程序,进行优化和实验验证。将优化的夹芯板结构应用于某汽车前围板,采用有限元仿真方法对前围板替换前后的车身结构性能进行了分析与评价。结果表明,采用优化的夹芯板前围板后,车身结构性能有明显改善。

关键词: PP夹芯板, 效用函数理论, 参数优化, 有限元仿真, 前围板

Abstract: For achieving better performance of polypropylene (PP)-core sandwich structure being substituted for steel panel, a few design attributes, e.g. stiffness, strength, mass and cost etc. of body panels are chosen to build an optimization model for sandwich structure parameter (thickness) based on multi-attribute utility function theory. Then the multi-objective optimization problem of sandwich structure is transformed into a single objective optimization problem, a parametric optimization program is developed with MATLAB,and an optimization is conducted and verified by experiment. Finally, the optimized sandwich structure is applied to the fire wall of a car and a finite element simulation is performed to analyze and evaluate the car body structural performances before and after fire wall substitution. It is shown that the structural performance of the car body with optimized sandwich fire wall is apparently improved

Key words: PP sandwich panel, utility function theory, parametric optimization, finite element simulation, fire wall

崔岸,陈宠,张世广,于多年,张晗,孙文龙,郝裕兴. 基于效用函数理论的车身PP夹芯板结构参数优化与应用研究^*[J]. 汽车工程, 2019, 41(3): 354-359.

Cui An, Chen Chong, Zhang Shiguang, Yu Duonian, Zhang Han, Sun Wenlong & Hao Yuxing. A Study on Parametric Optimization of PP Core Sandwich Structure and Its Application to Car Body Based on Utility Function Theory[J]. , 2019, 41(3): 354-359.

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基于效用函数理论的车身PP夹芯板结构参数优化与应用研究^*

A Study on Parametric Optimization of PP Core Sandwich Structure and Its Application to Car Body Based on Utility Function Theory

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