Lesson 19 Response of Floating Structure under the Wave Action

Keywords and Expressions

Decade：十年

Bow：船头

Hawser：缆索

Drawback：缺点、劣势

Valid：有用的

Irrotational：无旋的

Eulerian：欧拉

Bernoulli：伯努利

Haskind relation： Haskind关系

Harmonic：谐波，简谐

19.1　Introduction

Up till a few decades ago， the mooring of ships has been mainly a matter of practical experience. Ships were moored in harbors or sheltered areas only， where the external forces are in general limited to the rather steady current and wind forces. In a few harbors， as for instance Long Beach and Cape Town， with an open connection to the sea， difficulties were encountered with moored ships. Sometimes moored ships showed erratic motions and even mooring line failures occurred in apparently smooth weather conditions. Such troubles may be ......     （共10216字）    [阅读本文]>>