气门机构动力学模型中液压间隙调节器(HLA)的模拟  

作　　者：赵雨东[1] 陆际清[1] 葛青[1] 仝坤[1] 

机构地区：[1]清华大学

出　　处：《汽车技术》1998年第7期13-17,共5页Automobile Technology

摘　　要：在气门机构动力学计算中，模拟液压间隙调节器（HLA）应考虑到高压腔机油的可压缩性、泄漏及补偿；同时也应考虑泄漏机油对柱塞和柱塞套的剪切阻尼力的影响。介绍了国外研究的液压模型和质量－阻尼－弹簧模型，从物理意义上对质量－阻尼－弹簧模型以及其中刚度、阻尼参数的取值进行了分析和探讨。Compressibility, leakage and compensation of lubricating oil in high pressure cavity should beconsidered for the hydraulic lash adjuster (HLA) analogue during the dynamics calculation of valve mechanism,andeffect of lubricating oil leakage to the shear damping force of tappet plunger and its sleeve should be alsoconsidered. The hydraulic model and mass-damping-spring model in foreign research works are presented in thisarticle. And the physical significance of mass-damping-spring model and values of rigiaity and damping parameterchoiced in the model are analyzed and discussed.

关 键 词：发动机 气门机构 汽车 MLA 动力学模型 

分 类 号：U464.134.3[机械工程—车辆工程]