| Multi-Body Dynamics Analysis and Low Noise Optimization of X6170ZC Diesel |
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| 作者姓名： | 孙少军 郑勇 倪广健 张俊红 |
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| 作者单位： | School of Mechanical Engineering Tianjin University，School of Mechanical Engineering Tianjin University，School of Mechanical Engineering Tianjin University，School of Mechanical Engineering Tianjin University，Tianjin 300072 China，Tianjin 300072 China，Tianjin 300072 China，Tianjin 300072 China |
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| 摘 要： | Thelevel of vibration and noiseis animportant estima-tionindexoninternal combustionengines .As vibrationandnoise legislations are continually introduced and progres-sivelyrestricted,lowerlevel noise becomesincreasinglyim-portant .The traditional design pe…
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| 关 键 词： | 柴油机 发动机 震动机 最佳化 |
| 修稿时间： | 2007-03-06 |
Multi-Body Dynamics Analysis and Low Noise Optimization of X6170ZC Diesel |
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| SUN Shaojun,ZHENG Yong,NI Guangjian,ZHANG Junhong.Multi-Body Dynamics Analysis and Low Noise Optimization of X6170ZC Diesel[J].Transactions of Tianjin University,2007,13(4):297-302. |
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| Authors: | SUN Shaojun ZHENG Yong NI Guangjian ZHANG Junhong |
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| Institution: | School of Mechanical Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | The multi-body dynamics model of the X6170ZC diesel is established to analyze vibration and acoustic noise. The high quality finite element and simulation models are developed, and nonlinear springs are used to imitate the joints of engine components. The acoustic behavior of the structure is evaluated by the velocity of surface vibration. The noise level is reduced by improving the structure of the engine. The result shows that the surface vibration velocity level is decreased about 3.7 dB (A) at 1 600 Hz after the optimization. Based on the contrast between the two structures, it is concluded that through structure design the combined noise can be reduced, and the virtual design mode of diesel engines is feasible. |
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| Keywords: | diesel engine dynamics vibration acoustic noise optimization |
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