装多级扭转减振器的发动机曲轴系统扭振分析  

Torsional Vibration Analysis of Engine Crankshaft Systems with Rubber-Damped Torsional Vibration Damper with nInertia Rings

作　　者：王小莉[1] 上官文斌[1,2] 王亚杰 潘孝勇 

机构地区：[1]华南理工大学机械与汽车工程学院,广州510641 [2]宁波拓普集团股份有限公司,宁波315800

出　　处：《振动．测试与诊断》2014年第1期119-123,193-194,共5页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(50975091);汽车安全与节能国家重点实验室开放基金资助项目(KF10162);广东省科技计划资助项目(2010A040308003)

摘　　要：对装有n级橡胶阻尼式扭转减振器的发动机曲轴系统,建立其扭振分析的通程化模型。该模型适用于任意气缸数的发动机(V型或直列)曲轴系统。以优化参数的单级、两级并联和两级串联扭转减振器为例,对装有优化参数的减振器的发动机曲轴扭振进行计算比对,分析各减振器对发动机曲轴扭振的影响。计算结果表明,以控制曲轴在单简谐激励下各共振峰最小为优化目标选定的减振器,需要经过在实际发动机激励下进行强迫扭转振动分析验证后,方能实现最优选择。A unified model for calculating torsional vibration of an engine crankshaft with rubber-damped torsional vibration damper(TVD)with n inertia rings is developed.The unified model can be used to describe torsion vibration of an engine crankshaft system with or without TVD.Torsional vibration of an engine crankshaft is calculated for the crankshaft system without TVD,and for the crankshaft system plus one type of TVD with optimized stiffness and damping parameters.Three types of TVD are included in the model:one inertia ring TVD,two inertia ring TVD arranged in serial way,and two inertia ring TVD arranged in parallel way.The calculated results show that forced torsional vibration analysis of an engine crankshaft system under the generic engine firing excitation is necessary to validate the optimized TVD based on conventional method for optimization of stiffness and damping for a dynamic absorber.

关 键 词：橡胶阻尼式 扭转减振器 n个惯性环 发动机曲轴系统 强迫扭转振动 

分 类 号：TB535[理学—物理] U464[理学—声学]