弾性平板における波動エネルギ伝ぱの横衝撃による実験解析

抄録

An experimental study of mechanical transverse impact on an elastic plate was made. The transient wave-forms are explained in consideration of the mechanical energy propagation velocity. The velocity depends on the wave propagation modes. To detect the higher mode waves, a tiny hard plastic bead launched by air pressure from a thin glass tube and a piezo-electronic effect sensor are used. A comparision between experimental energy arrival times and theoretical ones, shows that the way explaining the transient behaviors of an elastic plate, developed here, may be well viable.