| 4105柴油机曲轴自由模态分析与试验研究 |
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| 引用本文： | 田晶,姜勇.4105柴油机曲轴自由模态分析与试验研究[J].拖拉机与农用运输车,2011,38(6):11-13,17. |
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| 作者姓名： | 田晶 姜勇 |
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| 作者单位： | 1. 徐州工程学院机电工程学院,江苏徐州,221008
2. 上海马瑞利动力系统有限公司,上海,200131 |
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| 摘 要： | 基于虚拟样机技术建立4105柴油机曲轴三维模型,并对曲轴自由模态进行了计算分析,得出2 000 Hz内共有9阶模态,其中最低阶模态为曲轴振动的危险区域,在柴油机工作转速范围内会引起共振。采用多点激励单点响应法对4105柴油机曲轴进行了模态试验,获得了0～2 000 Hz频率范围内的曲轴模态参数。模态试验结果和有限元计算结果对比分析表明,有限元计算结果较好地反映了曲轴的固有振动特性。
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| 关 键 词： | 柴油机曲轴 自由模态 有限元分析 模态分析 |
Free Modal Analysis and Experimental Study on 4105 Diesel Engine Crankshaft |
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| TIAN Jing,JIANG Yong.Free Modal Analysis and Experimental Study on 4105 Diesel Engine Crankshaft[J].Tractor & Farm Transporter,2011,38(6):11-13,17. |
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| Authors: | TIAN Jing JIANG Yong |
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| Institution: | TIAN Jing1,JIANG Yong2(1.College of Electro-mechanical Engineering,Xuzhou Institute of Technology,Xuzhou 221008,China,2.Shanghai Magnetimarelli Powertrain Co.,LTD.,Shanghai 200131,China) |
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| Abstract: | According to virtual prototyping,the 3D model of 4105 diesel engine crankshaft was built,and free model of crankshaft was calculated.The results show that there are nine rank models from 0 to 2 000 Hz,and in the natural frequency of 1st order,the crankshaft would resonate within the range of diesel working speed.By frequency-domain modal parameter extraction,the modal experiment was performed on 4105 diesel engine crankshaft,and the modal parameters of crankshaft from 0 to 2 000 Hz were obtained.The analysi... |
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| Keywords: | Diesel engine crankshaft Free model Finite element analysis Modal analysis |
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