内燃机配气机构系统动力学分析  

System Dynamic Analysis of Engine Valve-train

作　　者：张晓蓉[1] 朱才朝[2] 吴佳芸[2] 

机构地区：[1]重庆科技学院机械学院,重庆400042 [2]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《重庆大学学报（自然科学版）》2008年第3期294-298,共5页Journal of Chongqing University

基　　金：新世纪优秀人才计划资助项目(NCET-05-0766)

摘　　要：内燃机配气机构直接影响着内燃机的性能和可靠性。论文对顶置四气门配气机构工作过程进行了分析,采用理论计算和实验方法确定了配气机构动力学模型的主要参数,利用AVL/TYCON分析软件建立了顶置配气机构凸轮轴—摇臂—气门系统的一维动力学分析模型,并对其动态特性进行了数值仿真,验证了动力学模型及分析结果的正确性,为配气机构动态性能的评价和优化提出了理论依据。Valve train is the key factor for the performance and reliability of engine. We analyze the working mechanism of overhead valve train with four valves, and obtained the main parameters of dynamic modeling with theoretical and experimental methods. On the basis of the above studies, we build the model of camshaft-rocket-valve system with AVL/TYCON software. Its dynamic characteristics is simulated and verified by experiments. This paper provides a theoretical approach for the evaluation and optimization of dynamic performance of valve train.

关 键 词：内燃机 配气机构 动力学 

分 类 号：TH132.47[机械工程—机械制造及自动化]