摘要
针对兰姆波频率方程求解问题,提出了以兰姆波相速度为自变量,用函数间断点划分求解区间的数值计算求解方法。通过Matlab软件对算法进行编程实现,绘制出了兰姆波在铝板和钢板中传播时的频散曲线,取得了理想的结果。该方法对兰姆波的工程应用有实际指导意义。
A numerical calculation method was presented for Lamb wave frequency equation, in which the phase velocity of Lamb waves was independently variable and the evaluation interval was conformed by discontinuity points, and the algorithm was realized with software Matlab, and the frequency dispersion curves of Lamb wave propagating in aluminium plate and armor plate were plotted, and the result was satisfactory. It is of significance for practical application of Lame waves in engineering.
出处
《无损检测》
北大核心
2005年第6期294-296,共3页
Nondestructive Testing
关键词
超声检测
兰姆波
数值计算
编程
工程应用
Ultrasonic testing
Lamb wave
Numerical calculation
Programme
Engineering application
