有限元法计算内燃机燃烧室壁面周期性瞬时温度波动

The Finite Element Method for Calculating the Cyclic instantaneous Variation of Wall Temperature in Internal Combustion Engine Burner

介绍了用有限元法计算内燃机燃烧室壁面周期性温度波动的原理及程序设计。并用此程序采用一维传热模型对２８５ＱＢ油冷柴油机缸盖燃烧室壁面周期性温度波进行了计算，计算结果符合规律，用该方法可以按二维、三维传热模型计算内燃机燃烧室壁面周期性温度波动。

The principle of calculating, with finite element method, the cyclic variation of wall temperature in internal combustion engine and its program design are introduced in this paper. The program design has been used, with one dimensional mode of heat tromsfer, to calculate the cyclic variation curve of wall temperature in cumbustion head of 285QB diesel engine. It is shown that the conclusion made from this calculation method is in line with the relevant law. The method can be used to calculate the cyclic variation of the wall temperature in internal combustion engine according to two dimensional and three dimensional heat transfer mode.