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浙江大学学报(工学版)
浙江大学学报(工学版)
能源工程     
柴油机凸轮轴径向振动动态特性优化
刘功文,郝志勇,王连生,郑康
浙江大学 能源工程学系,浙江 杭州 310027
Diesel engine camshaft radial vibration dynamic #br# characteristics optimization
LIU Gong-wen,HAO Zhi-yong,Wang Lian-sheng, Zheng Kang
College of Energy Engineering,Zhejiang University,Hangzhou 310027,China
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摘要：

针对某柴油机凸轮轴与滑动轴承接触段径向力及振动较大等问题,综合考虑轴承支承刚度、轴段摩擦状况、转速波动及缸内爆发压力的影响.建立某柴油机凸轮轴动力学模型,进行仿真分析计算（CAE）与凸轮型线优化设计,并以优化前后2种结构方案,展开在轴承径向力、凸轮轴承段径向速度及阶次振动等方面的研究.结果表明,非对称凸轮型线可以有效地减小轴承段径向振动速度,削弱轴承径向力及其在05及2阶次的振动,该方法为凸轮轴概念设计及优化提供一定的指导.同时基于凸轮轴原结构模型,研究机油动力黏度及轴承配合相对间隙对凸轮轴径向动态特性的影响,并提出相应的优化思路.
Abstract:

For a large radial vibration and contact force between camshaft and sliding bear in a diesel engine,a camshaft dynamic model was built with consideration of bearing stiffness,friction,velocity fluctuation and cylinder explosion pressure,and corresponding analysis of simulation analysis（CAE） and cam profile optimization were done. Then comparative analysis among bearing radial force,camshaft section vibration velocity and order vibration was finished between two models. Results show that dissymmetric cam profile reduces bearing radial vibration velocity,radial force and vibration effect in 05 and 2 order, providing some guidance for camshaft conceptual design and optimization. And on the basis of camshaft original model, the effect on camshaft radial characteristics from oil kinetic viscosity and bearing relative clearance were researched．
出版日期: 2014-11-26
:  TK 412  
通讯作者: 郝志勇，男，博导.     E-mail: haozy@zju.edu.cn
作者简介: 刘功文（1989-），男，硕士生，从事内燃机配气机构动力特性及振动与噪声研究. E-mail：jxxglgw@126.com
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引用本文:

刘功文,郝志勇,王连生,郑康. 柴油机凸轮轴径向振动动态特性优化[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2014.05.022.

LIU Gong-wen,HAO Zhi-yong,Wang Lian-sheng, Zheng Kang. Diesel engine camshaft radial vibration dynamic #br# characteristics optimization. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2014.05.022.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2014.05.022    或    http://www.zjujournals.com/eng/CN/Y2014/V48/I5/904

［1］ 庞剑,湛刚.汽车与发动机振动噪声理论与应用［M］.北京： 北京理工大学出版社,2006:1019．
［2］ 李帅.发动机配气机构振动噪声研究［D］.长沙：湖南大学,2012:1117．
LI Shuai.The application research on valve train noise and vibration of automobile engine ［D］.Changsha:Journal of Hunan University,2012:1117．
［3］ 叶慧飞,郝志勇,郭磊,等.几种非对称凸轮型线在下置式凸轮轴高速柴油机中的设计研究［J］.内燃机工程,2010,31（4）:2529．
YE Hui-fei,HAO Zhi-yong, GUO Lei, et al. Design of unsymmetrical cam profiles for a high speed diesel engine with side-Mounted camshaft ［J］.Chinese Internal Combustion Engine Engineering,2010,31（4）:2529．
［4］ 宋立权,唐彬.发动机非对称配气凸轮型线设计研究［J］.内燃机,2005（6）：2830．
SONG Li-quan,TANG Bin.Research and design on unsymmetrical valve-train cam of engines ［J］.Internal Combustion Engines,2005（6）：2830．
［5］ 周睿.柴油机配气机构振动与润滑特性研究［D］.武汉：华中科技大学,2006:2036．
ZHOU Rui.Research on valve train vibration and lubrication characteristics of diesel engine［D］.Wuhan:Journal of Huzhong University of Sciencice and Technology,2006:2036．
［6］ WANG G, TAYLOR D, BOUQUIN B,  et al. Prediction of fatigue failure in a camshaft using the crack modeling method ［J］.Engineering Failure Analysis,2000,3:189197．
［7］BAYRAKCEKEN H, UCUN I, TASGETIREN S.Fracture analysis of a camshaft made from nodular cast iron［J］.Engineering Failure Analysis,2006, 13:12401245．
［8］ YU Zhi-wei, XU Xiao-lei.Failure analysis on fractured diesel engine camshafts ［J］.J Fail.Anal.and Preven,2009,9:3942．
［9］ YU Zhi-wei, XU Xiao-lei.Failure analysis of a cracked diesel engine camshafts［J］.J Fail.Anal.and Preven, 2012,12:438442．
［10］ 王远,张家玺,朱会田,等.凸轮轴动力学及多轴疲劳 分析研究［J］.内燃机工程,2010,31（1）:104107．
WANG Yuan,ZHANG Jia-xi,ZHU Hui-tian,et al.Study on dynamics and multi-Axle fatigue analysis of camshaft ［J］.Chinese Internal Combustion Engine Engineering,2010,31（1）:104107．
［11］ 康黎元,司庆九.凸轮轴强度有限元分析［C］∥MSC.Software中国用户论文集,北京:\[s.n.\],2007．
KANG Li-yuan,SI Qing-jiu.Finite element analysis of camshaft strength［C］∥MSC.Software Chinese users symposium.Beijing:\[s.n.\]2007．
［12］ 郭磊，车用动力总成结构振动噪声的虚拟预测与分析技术研究\[D\]：杭州：浙江大学，2009.
GUO Lei.Investigation on powertrain structure’s vibration and nose performance based on virtual foecast techndogy\[D\]. Hangzhou:Zhejiang Uniersity,2009.
［13］ 覃文浩,贺建强,李志辉.基于多体系统动力学的某V型发动机配气机构总成的动态仿真研究［J］.北京理工大学学报,2009,29（10）:869872．
QIN Wen-jie,HE Jian-qiang,LI Zhi-hui.A study on the simulation of valve train assembly of a V-type engine based on multi-body system dynamics ［J］.Transaction of Beijing Institute of Technology,2009,29（10）:869872．
［14］ 雷德发,高志安.浅谈滑动轴承装配间隙的测试与调整［J］.科技创业家,2011（10）：110111．
LEI De-fa,GAO Zhi-an.Test and Adjustment of sliding bearing assembly clearance ［J］.Technological Pioneers,2011,（10）:110111．
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