国防科技大学学报2017，Vol.39Issue(6)：71-78,142,9.DOI:10.11887/j.cn.201706012
小水线面双体船横摇阻尼特性数值与试验研究
Numerical and experimental investigation on roll damping of small waterplane area twin hull
摘要
Abstract
A SWATH (small waterplane area twin hull) installed with stabilizing fins rolling freely in calm water was investigated by both numerical approach and experimental method.Uncertainty analysis was made to verify and validate the numerical method.Both linear roll damping and nonlinear roll damping were obtained and the contributions of the frictional damping and the stabilizing fins to the roll restoring moment were analyzed.The results illustrate that:the numerical free roll decay curve agrees well with the experiment;under the assumption of linear roll mode,the linear roll damping coefficient sees an upward trend with the increase of initial heel angle;the computed free roll decay curves using nonlinear damping coefficients agree well with the experimental results; the frictional damping and the stabilizing fins make minimal contributions to the roll restoring moment for the free roll decay motion in still water.关键词
小水线面双体船/横摇阻尼/自由横摇衰减Key words
small waterplane area twin hull/roll damping/free roll decay分类
交通工程引用本文复制引用
孙小帅,姚朝帮,叶青..小水线面双体船横摇阻尼特性数值与试验研究[J].国防科技大学学报,2017,39(6):71-78,142,9.基金项目
国家自然科学基金资助项目(50879090,51509256) （50879090,51509256）
水动力重点基金资助项目(9140A1403071251311044) （9140A1403071251311044）
