simple harmonic oscillation with damping

The impacted bridge was considered to do simple harmonic oscillation with damping after impact. Some new concepts,such as equivalent amplitude,equivalent coefficient of elasticity,etc. were put forward.
認(rèn)為橋梁在受到撞擊后做阻尼簡諧振動(dòng),提出了如等效振幅、等效彈性系數(shù)等概念。