基于解决发动机加速异响问题的TVD分析优化

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (6) : 86-91.

论文

李亚南，郝志勇，郑旭，杨文英

作者信息 +

Analysis and optimization of the TVD of a certain vehicle for solving abnormal noises in accelerating condition

LI Ya’nan，HAO Zhiyong，ZHENG Xu，YANG Wenying

Author information +

文章历史 +

摘要

针对某整车加速异响问题，本文简要的介绍了通过试验测试确定异响激励源（曲轴轴系扭振）的过程，计算分析了曲轴轴系扭振激励引起异响的机理；分别研究了TVD（扭振减振器，Torsional Vibration Damper）橡胶层扭转刚度和惯量环转动惯量对扭振高谐次分量调频、调幅作用的影响，并对比了这两个参数的影响程度；分析发现增加惯量环转动惯量和降低橡胶层扭转刚度均能够降低扭振高谐次分量在常用转速区域的峰值，但调频、降幅程度不同；基于计算分析结论，本文对发动机原装TVD进行了优化设计，比较了发动机匹配优化后TVD和原装TVD两种情况下车内噪声测试结果，测试与主观评价均发现原有的异响声明显削弱，达到可接受范畴。

Abstract

Aiming at reducing the abnormal noise of a certain vehicle, the excitation source was searched and determined by experiments. Besides, the mechanism of the noise caused by torsional vibration was analyzed. The influences of the rubber torsional stiffness and the MOI (moment of inertia) of the ring on the TVD (torsional vibration damper) modulation effect were studied respectively and their influential extents were compared. The conclusions are drawn that changing the MOI of the ring and torsional stiffness of the rubber can reduce the amplitudes of high harmonic components in the common speed region, however their influential extents are different. Based on the conclusions, the optimization to the original TVD was carried out. With the optimized TVD, the abnormal noise reduces greatly both in test and subjective assessment, and reaches the acceptable level.

导出引用

李亚南，郝志勇，郑旭，杨文英. 基于解决发动机加速异响问题的TVD分析优化[J]. 振动与冲击, 2018, 37(6): 86-91

LI Ya’nan，HAO Zhiyong，ZHENG Xu，YANG Wenying. Analysis and optimization of the TVD of a certain vehicle for solving abnormal noises in accelerating condition[J]. Journal of Vibration and Shock, 2018, 37(6): 86-91

参考文献

[1] 王祺.内燃机轴系扭转振动[M]. 大连: 大连理工大学出版社,1991.
Wang Qi. Torsional vibration of engine crankshaft system[M]. Dalian: Dalian University of Technology Press, 1991(in Chinese).
[2] 舒歌群,王斌,梁兴宇.发动机变阻尼扭振减振器的轴系扭振抑制分析[J]. 天津大学学报, 2015.1(1): 19-24.
Shu Gequn, Wang Bin, Liang Xingyu. Torsional vibration reduction analysis of variable damping torsional vibration damper for engine crankshaft [J], Journal of Tianjin University (Science and Technology), 2015.1 (1):19-24.
[3] 陈超.汽车发动机曲轴系统扭振分析与减震器匹配研究[D]. 广州:华南理工大学机械与汽车工程学院, 2012.
Cheng Chao. Study on analysis of torsional vibration and selection of torsional vibration damper in engine crankshaft system[D]. Guangzhou: South China University of Technology, 2012.
[4] Athony Hage, Antoni Szatkowski, Zhe Li. Improving low frequency torsional vibrations NVH performance through analysis and test[J], SAE 2007 Noise and Vibration Conference and Exhibition .SAE, 2007.5.
[5] 郑国世,方劲松,高峻等.EQB210柴油机曲轴扭振减振器优化设计研究[J]. 内燃机, 2008(05):5-10.
Zheng Guoshi, Fang Jingsong, Gao Jun et al. Optimization design research of crankshaft damper of EQB210 engine [J]. Internal Combustion Engines, 2008(05):5-10.
[6] 上官文斌, 魏玉明, 赵旭等.橡胶阻尼式扭转减振器固有频率计算与测试方法的研究[J]. 振动工程学报, 2015(4):550-559.
Shangguan Wenbin, Wei Yuming, Zhao Xu et al. A study on method of calculation and measurement for natural frequency of torsional vibration rubber dampers [J]. Journal of Vibration engineering, 2015(4):550-559.
[7] He Z, Gong W, Xie W, et al. NVH and reliability analyses of the engine with different interaction models between the crankshaft and bearing [J]. Applied Acoustics, 2016, 101:185-200.
[8] 王才峄.内燃机曲轴轴系扭振的多体动力学分析[D], 杭州:浙江大学能源工程学院,2006.
Wang Caiyi. Multi-body dynamics analysis on torsional vibration of an internal combustion engine [D], Hangzhou: Zhejiang University, 2006.

[9] 李德苞.实验模态分析及其应用[M].北京:科学出版社,2001.
Li Debao. Experimental modal decomposition and application [M].Beijing: Science Press, 2001 (in Chinese).
[10] Mendes A S, Meirelles P S, Zampieri D E. Analysis of torsional vibration in internal combustion engines: Modelling and experimental validation[J]. Proceedings of the Institution of Mechanical Engineers Part K Journal of Multi-body Dynamics, 2008, 222(2):155-178.