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| MIMO时域模态分析理论在车辆动态设计中的应用 | |
| 引用本文： | 石琴,陈朝阳,钱锋.MIMO时域模态分析理论在车辆动态设计中的应用[J].农业机械学报,2003,34(4):8-10. |
| 作者姓名： | 石琴 陈朝阳 钱锋 |
| 作者单位： | 1. 合肥工业大学机械与汽车学院,副教授,230069,合肥市 2. 合肥工业大学机械与汽车学院,教授 3. 上海汇众公司,工程师,200036,上海市 |
| 基金项目： | 原机械部教育司青年基金资助项目 (项目编号 :815 0 3 2 ) |
| 摘 要： | 将多输入多输出(MIMO)时域模态分析理论及变时基技术应用于汽车车身模态分析中，开发了MAS软件系统。以改装车身为例，用MAS软件系统分析和计算了该车身的模态参数。并与解析模态计算结果进行了比较。探讨了MIMO时域模态分析技术应用于汽车结构动态分析领域的可行性和优越性。 |
| 关 键 词： | MIMO时域模态 车辆 动态设计 应用 车身模态分析 模态参数 |
Application of MIMO Time Domain Modal Analysis on Dynamic Design of Automobile Body |
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| Shi Qin Chen Chaoyang.Application of MIMO Time Domain Modal Analysis on Dynamic Design of Automobile Body[J].Transactions of the Chinese Society of Agricultural Machinery,2003,34(4):8-10. | |
| Authors: | Shi Qin Chen Chaoyang |
| Institution: | Shi Qin Chen Chaoyang(Hefei University of Technology) Qian Feng(Huizhong Company of Shanghai) |
| Abstract: | This paper evaluate the dynamic characteristics of the automobile body based on the MIMO time domain modal analysis and the variable time base technique .A corresponding computer software MAS was developed. The modal parameters of a van(CG620) was computed by using software MAS and ANSYS. Both the results from MAS and ANSYS were discussed and compared with each other and showed that the dynamic characteristics of the automobile body evaluated by the MIMO time domain modal analysis was superior to those by the frequency domain technique. The precisions of the modal parameters computed by both the MIMO time domain modal analysis and the variable time base technique will be raised owing to the optimization of the interval coefficient. |
| Keywords: | Vehicle engineering Structure parameters Time domain analysis Modal analysis |
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