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5. 有限求和项数 $N$ 对波形计算结果的影响

Fig.5. The influence of finite summation terms $N$ on the calculation results of waveforms