摘要
本文讨论了从实验测得的声速和声衰减值计算晶体弹性常数的方法与计算程序。晶体弹性常数可以利用克利斯托费尔(Christoffel)方程,通过下降法解非线性方程组的方法求得,我们根据这一思想用FORTRAN语言写出了计算程序,并对部分晶系晶体的弹性常数作了计算。利用本文的方法还可以计算晶体的粘滞常数。
With the help of the decline method, a computer-aided analysis program of Christoffel equation is described which makes it possible to calculate elastic constants and viscous constants of any crystals precisely and easily. The elastic constants of LiNbO3 and Bi2GeO20 crystal are calculated with Apple-II computer with the Fortran program which we suggested before, and the calculated figures are compared with values obtained by others.
出处
《声学学报》
EI
CSCD
北大核心
1989年第1期68-72,共5页
Acta Acustica
