温度场的数值计算

Numerial Calculation for Temperature Field

通过瞬态温度场的有限元计算，提出一种对流换热系数的确定方法，并对现有结构ＭＭ７１２０Ａ型精密平面磨床立柱进行了瞬态温度场计算，边界条件由实验方法确定．所得的计算数值和实测值充分一致。

Through the FEM calculation for an instantaneous temperature field, if proposes a defining method of convective heat transfer coefficient and calculates the instantaneous temperature field of an available structure of model MM7120A precision plane crinder col- umn. The boundary condition has been defined by experiment method. The calculation re- sult obtained is in keeping with the measurement fully.