Analysis of Cylinder Head Temperature of Motor Engine Under Transient Conditions
Analysis of Cylinder Head Temperature of Motor Engine Under Transient Conditions
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发表时间：
2001
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通讯作者：
J. Fen
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作者：
J. Fen
汽车发动机通常工作在非稳态或瞬态工况下，即起动、暖机，本文测量了风冷发动机气缸盖的非稳态温度场，分析了发动机瞬态工况下气缸盖的温度变化，结果表明，气缸内、外表面温度相差很大在热载荷作用下，启动工况对可靠性影响最大，同时，通过温度场和应力场的计算，可以提供可靠的边界条件。
The automobile engine is usually worked under non steady state of transient operating conditions,i.e. starting, warming ,suddenly loading and unloading.This paper measured the non steady state temperature field of cylinder head in an air cooled engine.It analysed the temperature variation under transient operating conditions of engine.The results indicated that there is a great difference between the temperatures in inner and outer surface of cylinder head.The starting operation condition had a most important effect on reliability under thermal load.At the same time, the reliable boundary conditions can be provided by calculating the temperature and stress fields.