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浙江大学学报(工学版)
J4  2013, Vol. 47 Issue (9): 1650-1657    DOI: 10.3785/j.issn.1008-973X.2013.09.021
能源工程     
发动机曲轴与正时系耦合动力学研究
李一民1,郝志勇1,杜极生2
1.浙江大学 能源工程学系,浙江 杭州 310027;2.东南大学 电气工程系,江苏 南京 210096
Study of coupling dynamics between crankshaft and
timing drive system of engine
LI Yi-min1,HAO Zhi-yong1,DU Ji-sheng2
1.Department of Energy Engineering, Zhejiang University, Hangzhou 310027,China;
2.Department of Electrical Engineering, Southeast University,Nanjing 210096,China 
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摘要：

为了研究发动机曲轴与正时系的耦合作用,建立曲轴的多弹性体动力学模型,得到了曲轴的扭转振动、曲柄臂圆角的动态应力以及主轴承的弹性流体动力学结果.单独建立了正时系的多体动力学模型,分析了同步带内力及带与各带轮的啮合力.通过联合仿真的方法将曲轴与正时系耦合起来,考虑曲轴正时带轮的力、力矩以及位移的相互作用,得到了曲轴与正时系的耦合动力学结果.结果表明：耦合作用下的曲轴扭振幅略有增加,第一主轴承所受弯矩的变化增加了最大油膜压力以及减小了最小油膜厚度,第一曲柄臂圆角最大应力增加了39%,而正时系动力学受曲轴的影响较小.曲轴扭振实验验证了耦合模型更符合发动机的实际工况.
Abstract:

 A multi-elastic body dynamic model of crankshaft was established to investigate the coupling effect between crankshaft and timing drive system of engine. The crankshaft torsional vibration, dynamic stress in fillet of crank web and elastic hydrodynamic (EHD) results of main bearing were obtained. A multi-body dynamic model of timing drive system was established separately to analyze the synchronous belt internal force and mesh force between belt and pulleys. The crankshaft and the timing drive system were coupled by co-simulation to consider the interaction of force, moment and displacement of the timing pulley. And then the coupling dynamic results between crankshaft and timing drive system were obtained. Results show that the crankshaft torsional vibration amplitude increases slightly with the coupling effect, the maximum oil film pressure increases while the minimum oil film thickness decreases with the first main bearing bending moment variation, and the maximum dynamic stress in fillet of first crank web increases by 3.9%. However, the dynamic of timing drive system is little influenced by the crankshaft. Torsional vibration test validated that the coupling model is more consistent with the actual engine working conditions than the uncoupling model.
出版日期: 2013-09-01
:  TK 402  
通讯作者: 郝志勇，男，教授，博导.     E-mail: haozy@zju.edu.cn
作者简介: 李一民（1985-），男，博士生，从事内燃机振动噪声控制及现代设计方法研究.E-mail:yiminli@zju.edu.cn
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引用本文:

李一民,郝志勇,杜极生. 发动机曲轴与正时系耦合动力学研究[J]. J4, 2013, 47(9): 1650-1657.

LI Yi-min,HAO Zhi-yong,DU Ji-sheng. Study of coupling dynamics between crankshaft and
timing drive system of engine. J4, 2013, 47(9): 1650-1657.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2013.09.021    或    http://www.zjujournals.com/eng/CN/Y2013/V47/I9/1650

［1］ 段秀兵,郝志勇,岳东鹏,等. 汽车发动机曲轴扭振多体动力学分析［J］. 汽车工程,2005,27 (2)：233-236．
DUAN Xiu-bing,HAO Zhi-yong,YUE Dong-peng,et al. Multi-body dynamics analysis on torsional vibration of automotive engine crankshaft［J］. Automotive Engineering,2005,27（2）：233-236．
［2］ 何芝仙,桂长林,李震,等. 计入轴瓦变形的曲轴动应力和疲劳强度计算［J］. 机械工程学报,2009,45(11)：91-98．
HE Zhi-xian,GUI Chang-lin,LI Zhen,et al. Calculation of dynamic stress and fatigue strength of crankshaft with bush deformation included［J］. Journal of Mechanical Engineering,2009,45(11)：91-98．
［3］ 郭磊,郝志勇,林琼. 柴油机曲轴与气缸体系统动力学仿真研究［J］. 浙江大学学报:工学版,2007,41(5)：780-784．
GUO Lei,HAO Zhi-yong,LIN Qiong. Dynamic simulation research on diesel engines crankshaft and block\
[J\]. Journal of Zhejiang University:Engineering Science ,2007,41(5)：780-784．
\
[4］ 王艳华,乔安平,郑国璋. 469Q汽油机正时同步带传动横向振动的研究［J］. 内燃机学报,2007,25(2)：187-191．
WANG Yan-hua,QIAO An-ping,ZHENG Guo-zhang. Study on synchronous belt transverse vibration of 469Q gasoline engine［J］. Transactions of CSICE,2007,25(2)：187-191．
［5］ 张京正,王勇,薛云娜. 发动机正时链波动与冲击特性［J］. 山东大学学报:工学版,2007,37(2)：30-33．
ZHANG Jing-zheng,WANG Yong,XUE Yun-na. The fluctuation and impact effect of the engine time chain［J］. Journal of Shandong University:Engineering Science,2007,37(2)：30-33．
［6］ 郭磊. 车用动力总成结构振动噪声的虚拟预测分析技术研究［D］. 杭州：浙江大学,2009:25-31．
GUO Lei. Investigation on powertrain structures vibration and noise performance based on virtual forcast technology［D］. Hangzhou:Zhejiang University,2009:25-31．
［7］ Ooi. Lu Ean,Ripin,Zaidi Mohd. Dynamic stiffness and loss factor measurement of engine rubber mount by impact test ［J］. Materials and Design, 2011,32(4)：1880-1887．
［8］ 毕玉华,李亚静,申立中,等. 增压中冷柴油机主轴承润滑特性分析［C］∥2009年用户大会论文集.苏州：AVL,2009:360367．
BI Yu-hua,LI Ya-jing,SHEN Li-zhong,et al. Main bearing lubrication analysis of turbocharged diesel engine［C］∥ Proceedings of AVL.Suzhou:AVL,2009:360-367．
［9］ KENGI S,KATSUMORI M,KYOICHI M. A study of oil film pressure distribution on connecting rods big ends［J］. SAE Paper,2002-01-0296．
［10］ FABRIZIO A S,ALESSANDRO U R. A nonlinear structure based elastichydrodynamic anslysis method for connecting rod big end bearings of high performance engines［J］. Transaction of the ASME,2004,126(10)：664-671．
［11］ 叶慧飞. 某车用柴油机配气机构及同步带传动系统动力学［D］. 杭州：浙江大学,2010:4345．
YE Hui-fei. Dynamics anslysis and optimization design for the valve train and belt transmission of a diesel engine［D］. Hangzhou:Zhejiang University,2010:43-45.
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