Topological Analysis and a Parametric Optimization Method for Aluminum Alloy Frame Body of Electric Vehicle

被引：0
|
作者：
Chen X. [1 ]
Zhao K. [1 ]
Shen C. [1 ]
Zheng K. [1 ]
Lü W. [2 ]
机构：
[1] State Key Laboratory of Automobile Simulation and Control, Jilin University, Changchun
[2] China FAW Corproation Limited Jiefang Business Division Commercial Vehicle Development Institute, Changchun
来源：
Tongji Daxue Xuebao/Journal of Tongji University | 2020年 / 48卷 / 10期
关键词：
Aluminum alloy frame body of electric vehicles; Implicit parametric model; Integrated multi objective optimization method; Topology optimization;
D O I：
10.11908/j.issn.0253-374x.20003
中图分类号：
学科分类号：
摘要：
An integrated multi-objective optimization method is proposed based on topology optimization and the implicit parameterized model to solve the problem that multiple types of section and plate variables should be considered when optimizing the aluminum alloy frame body of an electric vehicle. In order to obtain the frame body structure with a reasonable material distribution and load transfer as a reference for subsequent multi-objective optimization, the topology optimization design of the original body is conducted in the conceptual design stage. Then, the implicit parametric model of the vehicle body is built based on the topology optimization results and a response surface approximation model is established by using the parametric model to realize the automatic process of multi-objective optimization of aluminum alloy frame body. The results show that the all-aluminum frame body reduces weight by 11.9% while maintaining various performances within the target range. Therefore, the integrated multi-objective optimization method proposed based on topology optimization and the implicit parametric model can effectively improve the efficiency and accuracy of lightweight optimization of aluminum alloy frame body. © 2020, Editorial Department of Journal of Tongji University. All right reserved.
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页码：1470 / 1477
页数：7
相关论文
共 11 条
  • [1] LI Luoxing, ZHOU Jia, ZHANG Hui, Advanced extrusion technology and application of aluminum, magnesium alloy for vehiclebody, Journal of Mechanical Engineering, 48, 18, (2012)
  • [2] WANG Dengfeng, MAO Aihua, NIU Yanyan, Et al., Lightweight multi-objective optimization design for body frame of pure electric large bus based on topology optimization, China Highway Journal, 30, (2017)
  • [3] QIN Huan, GUO Yi, LIU Zijian, Et al., Shape optimization of automotive body frame using an improved genetic algorithm optimizer, Advances in Engineering Software, 121, (2018)
  • [4] SKARKA W, PABIAN T, MICHAL S., Comparison of unibody and frame body versions of ultra efficient electric vehicle, (2019)
  • [5] ZHANG Miaoli, REN Jindong, ZHOU Shanshan, A study on coach structure optimization based on load ratio of vehicle body measured by interface force, Automotive Engineering, 38, 8, (2016)
  • [6] LIANG Liguang, CHEN Jiqing, YANG Yuedong, Et al., The study of steel-aluminum hybrid vehicle body frame structure in concept design, Mechanical Design and Manufacturing, 7, (2018)
  • [7] DUAN Libin, LI Guangyao, CHENG Aiguo, Et al., Multi-objective system reliability-based optimization method for design of a fully parametric concept car body, Engineering Optimization, 49, 7, (2016)
  • [8] CHEN Xin, WANG Jianing, SHEN Chuanliang, Et al., Rapid coupling parametric optimal design of partial structure modification for integral body, Journal of Tongji University (Natural Science), 47, 8, (2019)
  • [9] YUAN Xini, YANG Bing, ZENG Yu, Research development of 5 ××× series al alloy sheet for automotive, Light Alloy Processing Technology, 46, 6, (2018)
  • [10] WANG Zhutang, Observation on extruded aluminum materials used for automobile, Light Alloy Processing Technology, 39, 3, (2011)
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