发动机曲轴动力吸振器橡胶应变分析  

Analysis of Rubber Strain of Torsion Damper for Engine Crankshaft

作　　者：于学华[1] 

机构地区：[1]华南理工大学汽车工程学院,广东广州510640

出　　处：《中国公路学报》2008年第3期121-126,共6页China Journal of Highway and Transport

基　　金：国家高技术研究发展计划("八六三"计划)项目(2003AA501000);上海交通大学机械系统与振动国家重点实验室开放研究基金项目(VSN-2006-01);广东省自然科学基金项目(07006559)

摘　　要：为了研究预估曲轴扭转振动产生应变的方法,讨论曲轴扭转振动和应变之间的关系,使用装有黏滞橡胶减振器的V型8缸非增压柴油发动机,进行了动力吸振器的橡胶应变和曲轴扭转振动的测量,从试验和计算2个方面进行了动力吸振器橡胶应变和曲轴扭转振动的分析,分别用黏性阻尼系数和磁滞阻尼系数进行了吸振器的橡胶应变和曲轴扭转振动计算。结果表明:用磁滞阻尼系数计算的动力吸振器橡胶应变比用黏性阻尼系数计算的橡胶应变更接近试验值。In order to study method to predict the strain caused by crankshaft rotation, and to discuss the relation between crankshaft rotation vibration and strain, using a V8 diesel engine with sticky rubber shock absorber, rubber strain of damper and crankshaft rotation vibration were measured. Rubber strain of torsion damper and crankshaft rotation vibration were analyzed by test and calculation. Using viscous damping coefficient and hysteresis damping coefficient, rubber strain of torsion damper and crankshaft rotation vibration were calculated. Results show that rubber strain of torsion damper calculated with hysteresis damping coefficient is closer to the measured value than that calculated with viscous damping coefficient.

关 键 词：汽车工程 发动机曲轴 扭转振动试验 动力吸振器 橡胶应变 阻尼系数 

分 类 号：U464.133[机械工程—车辆工程]