摘要
分析了现有滑行艇纵向运动理论预报方法的不足;根据滑行艇的艇型特点以及模型静水阻力试验和规则波、不规则波的试验结果,提出了滑行艇纵向运动的基本假设;建立了计及浮性和滑行力、滑行力矩影响的滑行艇纵向运动基本方程,提出了预报滑行艇纵向运动的实用计算方法(滑航法)并编制了理论预报程序;比较了忽略浮态变化的全排水量法、只考虑浮态变化的浮航法、同时考虑浮态变化和滑行力、滑行力矩影响的滑航法的计算值和实验值的差别,指出在预报滑行艇纵向运动时,低速宜采用全排水量法或浮航法,中高速时宜采用滑航法。
The deficiencies that exist in the current theoretical methods to predicate longitudinal motion of planing craft are analyzed.According to craft＇s formal characteristics and model tests of planing crafts in still water, regular wave and irregular wave, some fundamental assumptions of longitudinal motion of planing craft are presented; the longitudinal motion equation of planing craft is established, which includes the effects of the planing lift and the planing lift moment; a suitable method to predict the longitudinal motion of planing craft is developed, and the theoretical prediction program is set up. Three calculation methods-- the full displacement method which ignores the changes of configuration of craft at navigation,the floating method which only includes the effects of configuration of craft at navigation and the planing method which includes the effects of configuration of craft at navigation,planing lift and planing lift moment--are compared with each other.The result shows that the full displacement method and the floating method are suitable at low speed of the craft,while the planing method should be applied at middle or high speed of the craft, to predict the longitudinal motion of planing craft.
出处
《船舶力学》
EI
北大核心
2007年第1期55-61,共7页
Journal of Ship Mechanics
关键词
滑行艇
波浪纵向运动
滑行力
滑航法
全排水量法
浮航法
planing craft
longitudinal motion in wave
planing lift
planning method
full displacement method
floating method
作者简介
董文才（1967-），男，中国舰船研究设计中心博士后，海军工程大学教授，博士生导师。
