梯形应力脉冲在弹性杆中的传播过程和几何弥散1)
杨洪升*,李玉龙*,周风华2)()
THE PROPAGATION PROCESS AND THE GEOMETRIC DISPERSION OF A TRAPEZOIDAL STRESS PULSE IN AN ELASTIC ROD 1)
Yang Hongsheng*,Li Yulong*,Zhou Fenghua2)()

图8. 传播距离的变化对脉冲波形的影响 ($\bar {\alpha } = 0.004$,$\nu = 0.3)$

Fig.8. The effect of variation of propagation distance on pulse waveforms($\bar {\alpha } = 0.004$,$\nu = 0.3)$