发动机配气机构动力学分析  

Dynamic Analysis of Valve Train of Automobile Engine

作　　者：刘晓勇[1] 董小瑞[1] 

机构地区：[1]中北大学机电工程学院,山西太原030051

出　　处：《机械工程与自动化》2007年第6期68-70,共3页Mechanical Engineering & Automation

摘　　要：建立了配气机构单自由度动力学模型,并用N次谐波凸轮法拟合了凸轮升程,采用龙格-库塔求解动力学微分方程,并进行了实例验证,得到了某型号配气机构气门的升程、速度、加速度,计算结果表明该机构运行良好,没有出现传动链脱离和气门落座反跳现象。In the paper,a dynamic model with single degree of freedom has been built for the valve train. The lifting curve of cam is fitted by Nth-degree harmonics cam method, and the differential equation of dynamics is solved by Runge-Kutta method. By simulating an instance,the lift height,speed and acceleration of valve of an engine are gained ,the results show the valve train works well.

关 键 词：配气机构 动力学 单自由度 

分 类 号：U464.134[机械工程—车辆工程]