It is also found that the increase ofdampingof the cable dwindles the frequency bandwidth of large-amplitude vibrations and reduces the amplitude of vibrations, but enlarges the tension fluctuation.
增加斜拉索的阻尼可抑制其振幅，缩小其发生大幅振动的频率范围，但其张力波幅却相应增加。
2
High frequency vibrations did occur early in the microseism, and then the frequency was attenuated because of the damping of rock but not by the frequency dispersion of surface waves.
微地震过程中，先产生频率较高的振动，由于岩体阻尼而非面波频散引起振动频率衰减。
3
The synthesis of under-dampingvibrations with the same frequency at two mutual vertical directions is studied and investigated using Model JGYW-2 double-single vibration apparatus.