摘要
基于兴波阻力的薄船理论,作者曾提出用兰金体波幅函数(RWAF)代替实际船型的波幅函数,确定了高速双体船片体间的阻力干扰因子,从而可计算得到双体船的兴波阻力。本文将该方法用于高速三体船侧体与主体之间的兴波阻力干扰计算,以探讨主、侧体尺度及相对位置变化对于兴波阻力干扰因子τO、τOM的影响及其变化规律。基于这一研究结果,可实现用单体船阻力的实验资料,经过侧体、主体间的兴波干扰影响理论修正,来估算高速三体船的阻力;同时可用于对于最小阻力三体船片体尺度与布局之优化。
On the basis of ＂thin ship＂ theory of wavemaking resistance, the authors presented an approach by using Rankine Wave Amplitude Function （RWAF） to replace Michell Wave Amplitude Function （MWAF） of reality hull in calculating wave-making interference factor between demi-hulls of catamaran, and thereby to obtain resistance of high speed displacement catamarans.RWAF can be also applied to calculate wave-making resistance interference factor for demi-hulls of fast trimaran,pentamaran and to determine wavemaking resistance,the influence of dimensional relationship and configuration of demi-hulls on interference factor τ, and therefore the variance regulation of τ can be observed. Based on the result of this study, wave-making resistance of fast trimaran can be determined by model resistance test data or diagram of appropriate monohulls with correction demihull interference factors. Furthermore, the method can be applied to optimization of dimensional relationship and demi-hull configurations for minimum resistance.
出处
《船舶力学》
EI
北大核心
2008年第4期529-538,共10页
Journal of Ship Mechanics
关键词
高速三体薄船兴波阻力计算
薄船理论
Ranklne波幅函数
兴波阻力理论
兴波干扰因子
resistance calculation of fast trimaran and pentamaran
theory of thin ships
Rankine waveamplitude function
theory of wave-making resistance
wavemaking interferential factors
