一、有限元素法在内燃机结构应力分析中,有限元素法是一种近年来新的并获得广泛应用的有效计算方法.这种计算方法的特点是:它把连续介质分割成有限个节点的有限个小块(即元素),这些元素在节点处互相连接起来,以这样的模型代替原来的连续介质,然后根据力学原理建立元素组合体的支配方程,并求解这些方程,整个计算过程可以用计算语言编成程序后,由计 First, the finite element method in the internal combustion engine structural stress analysis, finite element method is a new and widely used in recent years, an effective method of calculation, which is characterized by: it splits the continuum into a finite number of finite nodes (Ie, elements) that are connected to each other at a node, replacing the original continuum with such a model, and then establishing the governing equations for the elemental composition based on mechanics and solving these equations. The entire calculation can be calculated After language is compiled into the program, by the meter