一、前言 港湾振动是人们很早就开始注意到的一种自然现象。一般说来,显著共振周期为数十秒到数十分钟,尽管这种长波特征的水面上下摆动幅度不大,而水体本身的横向摆动却相当大。若是一条系泊船的动态反应恰好有类似的共振周期,则其损害就会很大。在港湾中,由 I. Introduction Harbor vibration is a natural phenomenon that people began to notice very early on. In general, significant periods of resonance range from tens of seconds to tens of minutes, although the long-wave feature does not swing much up and down and the body’s lateral swing is rather large. If a mooring vessel’s dynamic response happens to have a similar resonance period, its damage can be substantial. In the harbor