| 车架结构动力学特性边界元法解析 |
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| 引用本文： | 方英武, 张永芳, 张广鹏, 黄玉美, 吕延军, 徐辉. 车架结构动力学特性边界元法解析[J]. 交通运输工程学报, 2005, 5(4): 63-66. |
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| 作者姓名： | 方英武 张永芳 张广鹏 黄玉美 吕延军 徐辉 |
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| 作者单位： | 1.空军工程大学 电讯工程学院, 陕西 西安 710077;;2.西北工业大学 电子信息学院, 陕西 西安 710072;;3.西安理工大学 机械与精密仪器工程学院, 陕西 西安 710048 |
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| 基金项目： | 陕西省自然科学基金项目(2003E208) |
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| 摘 要： | 为在设计阶段对车架结构进行高效的动力学建模解析, 提出了基于边界元的区域分割单元合成方法。采用薄板元件的动态基本解, 建立了板型构件的边界方程, 运用区域分割单元合成法, 推导出车架结构的动力学方程。边界元计算值相对于实验值的最大相对误差为5.0%, 相对于有限元计算值的最大误差为5.9%, 表明基于边界元的区域分割单元合成方法能够快速、准确地分析车架结构的动力学特性, 在设计阶段可提高车架结构的建模精度和计算效率。
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| 关 键 词： | 汽车工程 车架结构 边界元法 动态基本解 区域分割 |
| 文章编号： | 1671-1637（2005）04-0063-04 |
| 收稿时间： | 2005-07-09 |
| 修稿时间： | 2005-07-09 |
Dynamic behaviors analysis of vehicle frame by BEM |
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| FANG Ying-wu, ZHANG Yong-fang, ZHANG Guang-peng, HUANG Yu-mei, LU: Yan-jun, XU Hui. Dynamic behaviors analysis of vehicle frame by BEM[J]. Journal of Traffic and Transportation Engineering, 2005, 5(4): 63-66. |
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| Authors: | Fang Ying-wu Zhang Yong-fang Zhang Guang-peng Huang Yu-mei Lu Yan-jun Xu Hui |
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| Affiliation: | 1. School of Telecommunication Engineering, Air Force Engineering University, Xi'an 710077, China;;2. School of Electric and Information, Northwestern Polytechnical University, Xi'an 710072, China;;3. School of Machinery and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China |
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| Abstract: | For analyzing the dynamic properties of vehicle frame effectively in design,an area partition method based on boundary element method(BEM) was presented,the boundary equations of plate structure were established by using dynamic fundamental solutions of thin plate,the dynamic equations of vehicle frame were deduced.Computation result shows that the maximal relative error of BEM's values and experimental values for thin plate is 5.0%,the maximal error of FEM's values and BEM's values for vehicle frame is 5.9%.The dynamic characteristics of vehicle frame are analyzed fastly and efficiently,its modeling precision and calculation efficiency are improved greatly in design by BEM.2 tabs,5 figs,11 refs. |
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| Keywords: | automobile engineering vehicle frame boundary element method dynamic fundamental solutions area partition |
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