Study on Lightweight Design and Finite Element Modeling of Semi-integral Coach Skeleton

China Mechanical Engineering ›› 2012, Vol. 23 ›› Issue (4): 499-503.

Study on Lightweight Design and Finite Element Modeling of Semi-integral Coach Skeleton

Long Jiangqi1;Lan Fengchong2;Wang Jinlun2;Zhou Sijia1

1.Wenzhou University,Wenzhou,Zhejiang,325035

2.South China University of Technology,Guangzhou,510640

Online:2012-02-25 Published:2012-03-02
Supported by:

Zhejiang Provincial Natural Science Foundation of China（No. Y1110046）;

Zhejiang Provincial Science and Technology program ( No. 2010C31094);
Science and Technology program of Wenzhou ( No. G20100135,G20100162)

半承载式客车骨架有限元建模与轻量化研究

龙江启1;兰凤崇2;王金轮2;周斯加1

1.温州大学,温州,325035

2.华南理工大学,广州,510640

基金资助:
浙江省自然科学基金资助项目（Y1110046）;浙江省科技计划项目（2010C31094);温州市科技计划资助项目（G20100135,G20100162）
Zhejiang Provincial Natural Science Foundation of China（No. Y1110046）;

Zhejiang Provincial Science and Technology program ( No. 2010C31094);
Science and Technology program of Wenzhou ( No. G20100135,G20100162)

Abstract

Abstract:

A FE model of a semi-integral coach skeleton was established with shell elements and beam elements.The FE model was verified by experimental test.The strength of original coach skeleton model was computed and the stress distribution of the whole coach skeleton was obtained.Results show the potential

for lightweight design through structure configuration modification and optimization.A sensitivity analysis was conducted to select the components which affect the structural performance mostly and a lightweight scheme was proposed,which shows the weight-saving is of 7.35% of the original model.The lightweight model is mainly developed on the basis of sensitivity analysis and topology optimization.Finally,the feasibility of the optimization scheme was verified by the comparison of strength,stiffness and modal parameters with the original model.

Key words: coach skeleton, finite element(FE) model, lightweight, strength

摘要：

采用薄板单元和梁单元相结合的方法,建立了某半承载式客车骨架的有限元模型,并通过试验对模型进行了验证。首先,对原车模型进行了强度分析,获得整车应力分布信息,结果表明大部分构件有足够裕量储备,可以通过改变结构、构件截面参数等方法来进行优化减重。其次,通过构件对整车重量的灵敏度分析,

获知对整车重量影响较大的构件,提出了轻量化优化方案,该方案减重达7.35%,效果明显。最后,通过对优化前后整车强度、刚度、模态特性等的比对,验证了优化方案的可行性。

关键词:

客车骨架, 有限元模型, 轻量化, 强度

CLC Number:

U463.831

LONG Jiang-Qi-1, LAN Feng-Chong-2, WANG Jin-Lun-2, ZHOU Shi-Jia-1.

Study on Lightweight Design and Finite Element Modeling of Semi-integral Coach Skeleton

[J]. China Mechanical Engineering, 2012, 23(4): 499-503.

龙江启1, 兰凤崇2, 王金轮2, 周斯加1.

半承载式客车骨架有限元建模与轻量化研究

[J]. 中国机械工程, 2012, 23(4): 499-503.

[1]	HUA Lin, WEI Pengfei, HU Zhili, . Green and Intelligent Forming Technology and Its Applications for High Strength Lightweight Materials [J]. China Mechanical Engineering, 2020, 31(22): 2753-2762,2771.
[2]	ZHANG Kaicheng；LI Shunming；SUN Mingjie. Lightweight Optimization Design of Commercial Vehicle Frames Combined by Steel and Aluminum Materials under Multiple Working Conditions [J]. China Mechanical Engineering, 2020, 31(18): 2206-2211，2219.
[3]	TONG Shuiguang1;HE Shun1;TONG Zheming1;FAN Huichu1;LI Yuansong2;LI Minghui2;TAN Dahui3;ZHONG Yuwei3. Lightweight Design Method Based on Combined Approximation Model [J]. China Mechanical Engineering, 2020, 31(11): 1337-1343.
[4]	ZHU Chuanmin1;GU Peng1;LIU Dinghao1;ZHANG Heng2 . Strain-stress Relation of Medium-thickness Steel Plates Including Necking Stages [J]. China Mechanical Engineering, 2020, 31(09): 1037-1042.
[5]	ZHONG Haolong;ZHANG Xiaolong;LIU Zijian. Forward Design Method of Electric Vehicle Body Stiffness Based on Thin-walled Beam Structure [J]. China Mechanical Engineering, 2020, 31(08): 975-982.
[6]	LI Peng1,2;QIAO Fengbin2;WANG Fei2;QIU Lianfang2;WANG Jiang2; ZHAO Weigang2. Research on Rotary Friction Riveting Technology of Heterogeneous High Performance Thermoplastic Materials [J]. China Mechanical Engineering, 2019, 30(19): 2372-2377.
[7]	SONG Yanli1,2;XU Qinchao1,2;XU Fengxiang1,2;RUAN Shili1,2;SU Jianjun3;WANG Lianhao3. Multidisciplinary Optimization for Steel-Aluminum Composite Frames Considering Vibration Characteristics [J]. China Mechanical Engineering, 2019, 30(07): 846-851,876.
[8]	ZHAO Xiaoyu1，2;ZHANG Shuren1. Lightweight Design Method for Electric Vehicle Battery Boxes Made by Composite Materials [J]. China Mechanical Engineering, 2018, 29(09): 1044-1049.
[9]	WANG Yongmei1;DU Baojiang2. Model Simplification Method of Visual Attention and Lightweight Assembly Technology [J]. China Mechanical Engineering, 2018, 29(06): 726-731.
[10]	LIU Niansi;CAI Yongzhou;GU Jichao;ZHENG Hao. Design Space Differentiation Optimization Method and Its Applications to Vehicle Lightweight Design [J]. China Mechanical Engineering, 2018, 29(05): 597-601,622.
[11]	WANG Zhenhu1,2;ZHOU Qiaoying1,2;LIU Kaiyong1,2;FANG Xiangdong3;LI Luoxing1, 2. Multi-object Lightweight Design of BIWs Based on Response Surface Model [J]. China Mechanical Engineering, 2018, 29(01): 75-81.
[12]	MI Chengji1,2,3;GU Zhengqi1,3;JIAN Haigen3;ZHANG Yong1,3;LI Guang3;XIONG Yonggang3;JIANG Chao1. Anti-fatigue and Lightweight Design for Frame Structures of Electric Wheel Dump Trucks [J]. China Mechanical Engineering, 2017, 28(20): 2455-2462.
[13]	LI Ang;LIU Chusheng. Topology Optimization Designs of Large and Complex Structures Based on Super Element Technique [J]. China Mechanical Engineering, 2017, 28(20): 2467-2474.
[14]	LI Ang;LIU Chusheng. Load Analysis and Lightweight Design of Garbage Compression Stations [J]. China Mechanical Engineering, 2017, 28(17): 2124-2130.
[15]	ZHU Maotao, ZHU Caifan, GUO Jiahuan, QIAN Yang. Optimization Design of TRB Car Doors Based on 6σ Robustness [J]. China Mechanical Engineering, 2017, 28(08): 996-1001.