三体船运动与波浪载荷的伪共振问题研究  

Pseudoresonance in trimaran motion and wave load estimation

作　　者：邹健 王凡超 李辉[1] 邓宝利 任慧龙[1] 胡学聪 ZOU Jian;WANG Fanchao;LI Hui;DENG Baoli;REN Huilong;HU Xuecong(School of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China;NO.708 Research Institute of CSSC,Shanghai 200000,China)

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001 [2]中国船舶工业集团公司第七〇八研究所,上海200011

出　　处：《哈尔滨工程大学学报》2019年第6期1051-1057,共7页Journal of Harbin Engineering University

基　　金：国家重点研发计划(2018YFC0310500)

摘　　要：运用无航速三维线性势流理论计算三体船运动与波浪载荷时,在一些离散的频率上出现了伪共振问题。本文研究了伪共振在不同工况及不同片体布置位置下的变化特点;片体干扰下三体船辐射波浪传播特点;采用拓展的边界积分方程方法来处理伪共振问题。通过与实验结果对比表明,改进后的方法能够有效的处理伪共振问题,可以很方便的运用到工程计算中。Pseudoresonance will occur at some discrete frequencies when the zero-velocity linear potential flow theory is applied to calculate trimaran motion and wave loads. This work investigates the characteristics of the variation in pseudoresonance under different environmental conditions and different side-hull layouts and the characteristics of radiation wave propagation under side-hull interference. The extended boundary integral equation method is adopted to solve pseudoresonance. In contrast with experimental methods,the improved method can address pseudoresonance effectively and can be conveniently employed for calculation in engineering projects.

关 键 词：三体船 运动 波浪载荷 主船体 片体 伪共振 辐射波 边界积分方程 粘性阻尼 

分 类 号：U661.1[交通运输工程—船舶及航道工程]