| 排气系统吊钩位置优化分析 |
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| 引用本文： | 鄂世国,李京福,徐小彬.排气系统吊钩位置优化分析[J].汽车实用技术,2021(2). |
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| 作者姓名： | 鄂世国 李京福 徐小彬 |
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| 作者单位： | 华晨汽车工程研究院 |
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| 摘 要： | 排气系统吊钩与车身相连,它的振动对车身的有着明显的激励作用。文章通过有限元方法建立排气系统模态模型,赋予发动机及悬置,橡胶吊耳等参数。基于MSC.Nastran进行模态求解,计算出从0-200Hz模态结果,验证排气系统的模态与怠速频率避频。通过平均驱动自由度位移(ADDOFD)法,找出合理的排气系统各个吊点的布置位置。
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| 关 键 词： | 平均驱动自由度位移法 排气系统模态 排气系统吊点布置 |
Automobile exhaust system hook location optimization |
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| Authors: | E Shiguo Li Jingfu Xu Xiaobin |
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| Institution: | (Brilliance Automobile Engineering Research Institute,Liaoning Shenyang 110141) |
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| Abstract: | Automobile exhaust system hook is connected with BIW.The hook will excite the BIW vibrating forcefully.The automobile exhaust system is established by FEA method.The engine,its suspension and damping rubber are provided.By MSC.Nastran,the modal is calculated.The range of modal frequency result is from 0 to 200Hz.It has proved that it is different between the modal frequency and idle frequency.By the ADDOFD method,it found out the reasonable position. |
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| Keywords: | ADDOFD method Exhaust system moda Exhaust system hooks arrangement |
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