基于渐进空间拓扑优化技术的白车身传力路径规划方法

摘要/Abstract

摘要：

结合等效静态载荷的思想，提出了一种基于渐进空间拓扑优化技术的白车身传力路径规划方法，该方法引入专家系统，同时以车身造型和总布置参数为输入条件，从而使得到的拓扑优化结果尽可能满足工程实际要求。以某MPV的白车身传力路径规划为研究对象，对其进行考虑多种碰撞工况、顶压、多种刚度工况等的多学科拓扑优化方法研究，结果表明，基于渐进空间拓扑优化技术生成的车身拓扑优化结果能很好地满足工程设计要求，具有较高的工程实用价值。

关键词: 渐进空间, 拓扑优化, 车身碰撞, 传力路径

Abstract:

A vehicle load path planning method was proposed based on progressive space topology optimization technique combined with the thought of equivalent static load. In order to obtain good topology results, an expert system for body-in-white(BIW) topology optimization was introduced in the proposed method.Since the additional constraints such as styling and package space should be considered when constructing the topology model so as to ensure the topology results could possibly meet the requirements of practical engineering problem. Taking the load path planning of a MPV into account, a multidisciplinary topology optimization which considered vehicle collision, roof strength and BIW stiffness etc. was performed herein. The results demonstrate that the proposed method is capable generating nice distributed load paths for vehicle design problem and it has good engineering practicability.

Key words: progressive space;topology , optimization;vehicle crashworthiness;load path

中图分类号:

U461.91

王国春, 段利斌, 陈自凯, 陈佶思. 基于渐进空间拓扑优化技术的白车身传力路径规划方法[J]. 中国机械工程, 2015, 26(20): 2827-2834.

Wang Guochun, Duan Libin, Chen Zikai, Chen Jisi. Body-in-white Load Path Planning Method Based on Progressive Space Topology Optimization Technique[J]. China Mechanical Engineering, 2015, 26(20): 2827-2834.

参考文献

[1]Christensen J,Bastien C,Blundell M V,et al.Lightweight Hybrid Electrical Vehicle Structural Topology Optimization Investigation Focusing on Crashworthiness[J].International Journal of Vehicle Structures & Systems,2011,3(2):113-122.
[2]Lee S,Tovar A.Topology Optimization of Energy Harvesting Skin Using Hybrid Cellular Automata[J]. Journal of Mechanical Design,in Press,2013,135(3): 031001-031011.
[3]Ortmann C, Schumacher A. Graph and Heuristic Based Topology Optimization of Crash Loaded Structures[J].Structural and Multidisciplinary Optimization,2013,47(6):839-854.
[4]范文杰，范子杰，桂良进，等.多工况下客车车架结构多刚度拓扑优化设计研究[J].汽车工程,2008,30(6):531-534.
Fan Wenjie,Fan Zijie,Gui Liangjin,et al.Multi-stiffness Topology Optimization of Bus Frame with Multiple Loading Conditions[J]. Automotive Engineering，2008，30(6):531-534.
[5]扶原放,金达锋,乔蔚炜.多工况下微型电动车车身结构拓扑优化设计[J].机械设计,2010，27(2)：77-81．
Fu Yuanfang,Jin Dafeng,Qiao Weiwei.Topological Optimization Design on the Body Structure of Mini Electric Cars under Multi-working Conditions[J].Journal of Machine Design,2010,27(2):77-81.
[6]徐晓瑜，郭永进.电动低速汽车车身结构刚度约束拓扑优化设计[J].机械设计与研究，2010，26(2)：111-113.
Xu Xiaoyu,Guo Yongjin.Stiffness-constrained Topology Optimization for Body Structure of Electric Low Speed Vehicle[J].Machine Design and Research,2010,26(2): 111-113.
[7]谢伦杰，张维刚，常伟波，等.电动汽车正碰结构耐撞性研究[C]//第九届国际汽车交通安全学术会议论文集.长沙，2011：77-80.
[8]
庄守兵，吴长春.基于均匀化方法的多孔材料细观力学特性数值研究[J].材料科学与工程，2001，19(4)：9-13．
Zhuang Shoubing,Wu Changchun.Microscopic Investigation of Cellular Materials Mechanical Properties Based on Homogenization Theory[J].Material Science and Engineering,2001,19(4): 9-13.
[9]罗震.基于变密度法的连续体结构拓扑优化设计技术研究[D].武汉:华中科技大学,2005.
[10]Bruns T E.Zero Density Lower Bounds in Topology Optimization[J].Computer Methods Applied Mechanics Engineering, 2006, 196(3):566-578.
[11]Chu   D N,Xie Y M,Hira A,et al.Evolutionary Structural   Optimization for Problems with Stiffness Constraints[J].Finite Elements in Analysis & Design,1996,21(4):239-251.
[12]高彤,张卫红,朱继宏,等.循环对称结构静力学渐进拓扑优化设计[J].机械工程学报,2008,44(3):165-172.
Gao Tong, Zhang Weihong, Zhu Jihong, et al.Evolutionary Static Topology Optimization of Cyclic-symmetry Structures[J].Chinese Journal of Mechanical Engineering,2008,44(3):165-172.
[13]胥志刚，林忠钦，来新民，等.面向车身结构轻量化设计的水平集拓扑优化[J].上海交通大学学报，2007，41(9)：1393-1396.
Gao Zhigang,Lin Zhongxin,Lai Xinmin,et al.A Level Set Topology Optimization Method for Auto-body Structure Lightweight Design[J]. Journal of Shanghai Jiao Tong University,2007,41(9):1393-1396.
[14]张煜东,吴乐南,王水花.专家系统发展综述[J].计算机工程与应用,2010,46(19):43-47.
Zhang Yudong,Wu Yuenan,Wang Shuihua.Survey on Development of Expert System[J].Computer Engineering and Applications, 2010, 46(19):43-47.
[15]Neves L P,Dias L C,Antunes C H,et al.Structuring an MCDA Model Using SSM:a Case Study in Energy Efficiency[J]. European Journal of Operational Research,2009,199(3):834-845.
[16]Liu K F R,Yu C W.Integrating Case-based and Fuzzy Reasoning to Qualitatively Predict Risk in an Environmental Impact Assessment Review[J].Environmental Modelling &    Software,2009,24(10):1241-1251.
[17]Choy K L,Chow K H,Moon K L,et al.A RFID-case-based Sample Management System for Fashion Product Development[J]. Engineering   Applications of Artificial Intelligence,2009,22(6):882-896.
[18]蔡自兴,Durkin J,龚涛.高级专家系统:原理、设计及应用[M].北京:科学出版社,2006.
[19]成艾国,沈阳,姚左平.汽车车身先进设计方法与流程[M].北京:机械工业出版社,2011.
[20]邬诚君.轻质车身结构的力学分析[D].上海：同济大学，2006.
[21]程金山.某国产A级车车身前舱结构分析与优化[D].上海：同济大学,2009.
[22]王君杰,陈诚,汪宏,等.基于碰撞数值模拟的桥梁等效静力船撞力基本公式[J].公路交通技术,2009,4(2):66-70.
Wang Junjie,Chen Cheng,Wang Hong,et al.Equivalent Static Force of Ship Impact to Bridge Based on Impact Numeric Simulation Fundamental Formula[J].Technology of Highway and Transport,2009,4(2):66-70.
[23]扶原放,金达锋,乔蔚炜.惯性释放原理在车架结构优化设计中的应用[J].机械设计与研究,2009,25(1):65-67.
Fu Yuanfang,Jin Dafeng,Qiao Weiwei.Application of Inertia Relief in Vehicle Frame Structure Optimization[J].Machine Design and Research,2009,25(1):65-67.
[24]曹萍,王卫英.基于惯性释放的微型客车车身强度分析[J].机械设计，2011, 28(7):46-49.
Cao Ping, Wang Weiying.Strength Analysis of a Minibus Body Based on Inertia Relief[J].Journal of Machine Design, 2011, 28(7): 46-49.