华南理工大学学报(自然科学版) ›› 2011, Vol. 39 ›› Issue (11): 144-148.

• 汽车工程 • 上一篇    下一篇

轮胎试验台转鼓结构的优化设计

李世武 田晶晶 孙文才王建武 汪海正   

  1. 吉林大学 交通学院,吉林 长春 130022
  • 收稿日期:2011-04-26 修回日期:2011-06-13 出版日期:2011-11-25 发布日期:2011-10-03
  • 通信作者: 孙文财(1981-),男,讲师,主要从事车辆安全综合监控预警技术等的研究.E-mail:swcai@163.com E-mail:shiwu@ jlu.edu.cn
  • 作者简介:李世武(1971-) ,男,教授,博士生导师,主要从事车辆安全综合监控预警技术等的研究.
  • 基金资助:

    国家"863”计划项目( 2009AA11Z215) ; 国家自然科学基金资助项目( 50978116)

Optimized Design for Drum Structure of Tire Test Bed

Li Shi-wu  Tian Jing-jing  Sun Wen-cai  Wang Jian-wu  Wang Hai-zheng   

  1. College of Transportation,Jilin University,Changchun 130022,Jilin,China
  • Received:2011-04-26 Revised:2011-06-13 Online:2011-11-25 Published:2011-10-03
  • Contact: 孙文财(1981-),男,讲师,主要从事车辆安全综合监控预警技术等的研究.E-mail:swcai@163.com E-mail:shiwu@ jlu.edu.cn
  • About author:李世武(1971-) ,男,教授,博士生导师,主要从事车辆安全综合监控预警技术等的研究.
  • Supported by:

    国家"863”计划项目( 2009AA11Z215) ; 国家自然科学基金资助项目( 50978116)

摘要: 为避免试验过程中转鼓在外界激励下发生共振,首先基于拓扑优化原理,以单元密度作为设计变量、体积缩减50%为约束条件、一阶固有频率为设计目标,对“工”字型转鼓的结构进行拓扑优化计算,得出转鼓的伪密度分布图; 然后基于转鼓拓扑优化分析结果,改进转鼓的“工”字型结构,并对转鼓的结构尺寸进行50 次迭代优化.在转鼓的一阶固有频率高于60Hz 的前提下,取一阶固有频率与总质量比值最大( 0. 053 9) 时的结构尺寸为最优解.优化结果表明: 改进后的转鼓第一阶固有频率为64. 384Hz,较改进前提高了21. 972Hz; 转鼓总质量降低了69. 95 kg.

关键词: 轮胎试验台, 转鼓, 模态分析, 拓扑优化

Abstract:

In order to avoid the resonance of drum under external excitation during tire tests,first,the topological optimization analysis of 工-shaped drum was carried out,with the element density as the design variable,the volume reduction of 50% as the constraint and with the first-order natural frequency as the objective function. Next,the pseudo-density distribution of the drum was obtained,and the 工-shaped structure of drum was modified according
to the analysis results. Then,the structure size of the modified drum was optimized via 50 iterative calculations. Finally,on the premise that the first-order natural frequency was more than 60 Hz,the structure size of drum was taken as the optimum when the ratio of the first-order natural frequency to the total mass reached the maximum 0. 053 9. Optimization results show the total mass of the modified drum decreases by 69. 95kg and first-order natural frequency reaches 64. 384Hz,which is 21. 972Hz higher than that of the original drum.

Key words: tire test bed, drum, modal analysis, topology optimization