近海结构的研究是海洋工程领域的重要专题。本文以 Airy 线性波理论和莫里森方程为基础推导平台结构的运动方程。将波浪力简化为二节点集中载荷，从动力学的角度分析结构的响应特征。以一简化的固定平台为算例，以不同的入射波为激励条件分析比较结构的位移响应、速度响应以及加速度响应。研究结果表明，随着入射波强度的增大，结构的振动变得更为剧烈，且结构的振动响应不仅与入射波的周期和波高有关，与波浪的形式也有一定的关系。
The study of offshore structures is an important subject in the field of ocean engineering. Based on Airy linear wave theory and Morrison equation, the equation of motion of the platform was derived. The wave force was simplified to two nodes, and the response characteristics of the structure were analyzed from the point of view of dynamics. A simplified fixed platform was used as an example. The displacement response, velocity response and acceleration response of the structure were analyzed and compared with different incident waves. Research results show that the intensity of incident wave increases the structure vibration becomes more intense and structural vibration response is not only related to the incident wave period and wave height, and the wave form of also have certain relationship.
2016,38(8): 52-56 收稿日期：2016-2-2
DOI：10.3404/j.issn.1672-7619.2016.08.011
分类号：P751
基金项目：浙江省自然科学基金资助项目(Y14E090034，Y13F020140)；浙江省青年科学家培养计划资助项目(2013R60G7160040)
作者简介：谢卓(1990-),男,硕士研究生,研究方向为流体检测与仿真技术。
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