摘要
小水线面三体船主、侧体尺度相差较大,因此,理论上侧体尺度具有无数种方案。目前,多数学者侧重于对侧体位置的研究,而对小水线面三体船侧体尺度对其水动力性能影响的研究还不够广泛。采用基于势流理论的AQWA软件进行数值模拟计算。首先,为确保计算过程中参数设置的准确性,对AQWA软件计算船舶耐波性的可靠性进行验证;然后,研究系列傅汝德数Fr下侧体尺度变化对小水线面三体船的耐波性响应。结果显示,在波长船长比变化时,垂荡纵摇RAO随侧体尺度改变产生了非单调的变化。不同航速下,垂荡和纵摇性能最优的侧体尺度不一致。综合所有航速考虑,L_(c)/L为0.3和0.35的侧体方案耐波性能较好。研究结果可为小水线面三体船的设计提供借鉴。
There is a big difference between the main hull and the side hull of trimaran small waterplane area center hull,so there are numerous theoretical schemes for the side hull size.At present,there are many researches on the position of the side hull,while the research on the effect of side hull size on the hydrodynamic performance of trimaran small waterplane area center hull is not enough.Numerical simulation is carried out using AQWA software based on potential flow theory.Firstly,in order to ensure the accuracy of parameter setting in the calculation process,the reliability of AQWA software in calculating ship seakeeping is verified.Then,the seakeeping response of the side hull size in a series of Fr to the trimaran small waterplane area center hull is studied.The results show that the heave and pitch RAO changes non-monotonically with the side hull size.At different speeds,the optimal side hull size for heave and pitch performance are not consistent.Considering all the navigation speeds,the seakeeping performance of the side body scheme with L_(c)/L of 0.3 and 0.35 is better.The research results can provide reference for the design of trimaran small waterplane area center hull.
作者
张明霞
李海月
ZHANG Mingxia;LI Haiyue(School of Naval Architecture and Ocean Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China)
出处
《船舶工程》
CSCD
北大核心
2024年第S01期479-487,共9页
Ship Engineering
关键词
小水线面三体船
侧体尺度
耐波性
运动响应幅值
AQWA软件
trimaran small waterplane area center hull
side hull size
seakeeping
motion response amplitude
AQWA software
