频散曲线求解，利用matlab进行lamb的求解，结果与数值分析方法相比，误差较小，对试验结果具有重要参考价值。通过仿真试验，结果结果比较好。(To solve the dispersion curve, using o solve the dispersion curve, using matlab to solve lamb, the results compared with the numerical analysis method, the error is small, the test results have important reference value. Results through simulation experiment, the result is better.)