柴油机气缸盖的耦合场分析及应用  

Coupling Field Analysis and Application for Cylinder Head of Diesel Engine

作　　者：肖翀[1] 左正兴[1] 覃文洁[1] 郭良平[1] 

机构地区：[1]北京理工大学机械与车辆工程学院动力工程系,北京100081

出　　处：《车用发动机》2006年第4期26-29,34,共5页Vehicle Engine

摘　　要：应用现代设计方法实现了柴油机气缸盖流场、温度场、应力场的耦合分析,探索了柴油机热、流、固耦合计算的一般方法和具体实施技术。考察了关键结构对气缸盖温度及应力大小和分布的影响程度,并且就缸盖入口流量对缸盖冷却的影响进行了分析。The multi-physics field, which comprises of flow, temperature and stress field for a diesel engine, is simulated in this paper applying modern design methods. The purpose is to explore the general methods and concrete implementing techniques for the engines＂ coupling analysis of flow field, temperature field and stress field. The influence of several key structure dimensions and structure types of the cylinder head on temperature field and stress field is studied,and an analysis of their sensitivity about flow quantity to cylinder head temperature is carried out.

关 键 词：气缸盖 温度分布 流动特性 仿真 计算流体力学 有限元法 

分 类 号：TK422[动力工程及工程热物理—动力机械及工程]