多缸内燃机机体结构振动响应的激振力分析  

Analysis for Forces Exciting Structural Vibration of Multi-cylinder Engine Block

作　　者：王义亮[1] 谢友柏[2] 

机构地区：[1]太原理工大学机械工程学院,太原030024 [2]西安交通大学机械工程学院,西安710049

出　　处：《煤矿机械》2009年第8期92-94,共3页Coal Mine Machinery

基　　金：国家自然科学基金(50175088);山西省基础研究计划资助项目(2008011052)

摘　　要：作为深入研究多缸内燃机机体与缸套结构振动、缸套-活塞系统摩擦学行为与动力学行为耦合作用及内燃机噪声控制等问题的基础,以四缸内燃机为例,分别对多缸内燃机各缸对应的缸内气体压力、活塞侧推力及主轴承力进行了研究。在此基础上,针对某具体的四缸内燃机,对上述各力及其频谱进行了计算与分析。As the preliminary work for studying problems of the block or liner vibration, the interaction between the tribological and dynamical behaviors in the piston-liner systems, and the noise radiation control of multi-cylinder IC engines, the primary exciting forces of multi-cylinder engine block, such as the gas pressures, piston thrust forces as well as the main bearing forces, are studied thoroughly. And then, above-mentioned forces of a certain 4-cylinder engine and their frequency spectrum are analyzed.

关 键 词：多缸内燃机 机体 结构振动 载荷 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]