Ruby on rails 实践 代码 帮助你学习ror开发-Ruby on rails ror practice code developed to help you learn

将铁路视为周期结构，通过声子晶体的传递矩阵法，计算的钢轨的横波和纵波的色散曲线。两程序分别将钢轨视为欧拉梁和Timoshenko梁。(Regarding the railway as a periodic structure, the dispersion curves of the transverse and longitudinal waves of the rail are calculated by the transfer matrix method of phononic crys