【摘要】 采用有限元法模拟压铸型的温度场,在时间域内用有限差分法模拟非稳态温度场的变化.以此法模拟了压特型任一截面上、在不同冷却时间的温度场,并以图形显示.使用Pascal语言编制软件,基本运算由各个子程序来实现,各主要执行程序的调入顺序,由一个菜单来控制,从而形成一个可以在微机上运行的小系统.运行结果与红外热成象仪实测的温度场接近,其最大误差为7%.更多还原

【Abstract】 To simulate the thermal field of die casting dies the finite element method was developed and the variety of unsteady thermal field was simulated by using finite differential method in the time domain. The thermal field of any section of die casting die at different cooling moment may be simulated and graphically displayed. The software is designed using Pascal language, the foundament operation are completed through several subprograms and the load order of main programs are controlled by a menu, thus a small-type system run on microcomputer is formed. The results approach to the thermal fields of die casting dies obtained by infrared thermal image instrument, the maxium error is said to be about 7%.更多还原