| 全承载式客车车身结构优化设计 |
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| 引用本文： | 刘竹清,丁能根,张国,马建军,王孝来.全承载式客车车身结构优化设计[J].机械科学与技术(西安),2004,23(1):68-70. |
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| 作者姓名： | 刘竹清 丁能根 张国 马建军 王孝来 |
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| 作者单位： | 北京航空航天大学 北京100083
(刘竹清，丁能根)，安徽安凯汽车股份有限公司 合肥230051
(张国，马建军)，安徽安凯汽车股份有限公司 合肥230051(王孝来) |
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| 摘 要： | 建立了全承载式客车车身骨架及顶盖蒙皮的有限元分析模型 ,并完成了车身结构的参数优化设计。将车身结构总体积作为优化目标函数 ,以车身骨架主要型材的截面参数为设计变量 ,选择整车扭转刚度及车身低阶固有频率等约束条件构成约束条件。优化后对车身强度和刚度进行校核 ,以检验优化结果的合理性 ,确保客车在性能满足要求的前提下减轻车身自重。
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| 关 键 词： | 车身结构 有限元分析 优化设计 |
| 文章编号： | 1003-8728(2004)01-0068-03 |
Optimal Design for Integral Coach Body Structure |
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| LIU Zhu-qing ,DING Neng-gen ,ZHANG Guo ,MA Jian-jun ,WANG Xiao-lai.Optimal Design for Integral Coach Body Structure[J].Mechanical Science and Technology,2004,23(1):68-70. |
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| Authors: | LIU Zhu-qing DING Neng-gen ZHANG Guo MA Jian-jun WANG Xiao-lai |
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| Affiliation: | LIU Zhu-qing 1,DING Neng-gen 1,ZHANG Guo 2,MA Jian-jun 2,WANG Xiao-lai 2 |
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| Abstract: | In this paper,the finite element analysis model for the body skeleton and its surface cover for an integral coach is built. The parametric optimal design of the body structure is completed. The total volume of the body structure is designated as objective function,the section sizes of major body beams as design variables,and the overall body torsion stiffness and body' s low-order natural frequencies as state variables. Finally,the strength and stiffness of the optimized model is checked to examine the reasonableness of the optimal result to ensure reduction of the body weight while the performance of the coach meets its requirements. |
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| Keywords: | Body structure Finite element analysis Optimal design |
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