| 接头分析在汽车NVH正向设计中的应用 |
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| 引用本文： | 穆同宝,张丰利,张金姐,陈剑.接头分析在汽车NVH正向设计中的应用[J].汽车科技,2009(2):17-19. |
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| 作者姓名： | 穆同宝 张丰利 张金姐 陈剑 |
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| 作者单位： | 合肥工业大学,噪声振动工程研究所,合肥,230009 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 轿车的NVH性能在现代轿车开发中已经越来越受到莺视。结合国内某轿车NVH性能开发流程，对该轿车结构设计阶段的白车身进行了模态分析和静态刚度分析。分析结果显示，一阶振型为顶棚横摆，且频率与发动机怠速激励频率接近，车身扭转刚度低于竞争车型。由此分析了A柱接头刚度，并对其进行了结构和尺寸优化以提高其刚度，达到了消除顶棚横摆模态，提高扭转刚度值的目的。
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| 关 键 词： | 模态 刚度 白车身 接头 |
The Application of Joints Analyse in the Original Design Process of Automobile NVH |
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| MU Guo-bao,ZHANG Feng-li,ZHANG Jin-jie,CHEN Jian.The Application of Joints Analyse in the Original Design Process of Automobile NVH[J].Automobile Science and Technology,2009(2):17-19. |
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| Authors: | MU Guo-bao ZHANG Feng-li ZHANG Jin-jie CHEN Jian |
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| Institution: | Institute of Sound and Vibration Research;Hefei University of Technology;Hefei 230009;China |
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| Abstract: | Vehicle NVH performance has been more and more critical in the developing process of a passenger vehicle. In this paper,modes and stiffness are analyzed in the designing process of a domestic passenger vehicle. The results show that the first vibration type is roof transverse swing with a frequency close to the engine excitation and the stiffness value is under the BM target. The A pillar joint stiffness is also analyzed structure optimized. The results show that the BIW torsional stiffness improve with the... |
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| Keywords: | mode stiffness BIW joint |
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