It is shown that the first resonant frequency and the first anti-resonant frequency decrease synchronously due to the propagation of crack.
It is shown that the first resonant frequency and the first anti-resonant frequency decrease synchronously due to the propagation of crack.
从该曲线可以发现，梁的第一阶谐振频率和反谐振频率都随裂纹的出现而减小，并且频率减少量随裂纹尺寸的增大而增加。