ω型柴油机活塞温度特性计算机模拟  

Temperature property computer simulation of ω combustion chamber diesel engine piston

作　　者：王金元[1] 赵春婕[1] 

机构地区：[1]陕西理工学院

出　　处：《内燃机配件》2009年第3期6-8,共3页Internal Combustion Engine Parts

摘　　要：活塞作为内燃机最重要的受热零部件之一,长期处于恶劣的工作环境中,承受着很高的热负荷,容易形成热疲劳而损坏。本文在相同的稳态边界条件下,研究柴油机ω型活塞三种不同的设计方案:方案1,对活塞内腔做喷油冷却;方案2,给活塞加内冷却油道强迫冷却;方案3,给第一道环槽镶中空环槽镶圈。利用有限元ANSYS软件分别对三种方案进行模拟仿真,获得其温度特性,由此可为该型活塞的结构优化提供参考依据。Piston is one of the most important heated components ot internal comoustlon engine, it works in a poor environment and withstands the high heat load and heat stress, so as to come into being thermal fatigue damage. This article has discussed three options on the same load and boundary conditions： in option 1, cooling piston by intracavity group injection; in option 2, cooling piston by the cooling channel ; 3, roading to the first ring hollow ring groove. By the software of ANSYS simulating the three types of design, we can get temperature distribution map, which could provide some gist for optimization.

关 键 词：柴油机 活塞 温度特性耦合场 有限元 

分 类 号：TK423[动力工程及工程热物理—动力机械及工程]