中国造船
中國造船
중국조선
SHIPBUILDING OF CHINA
2013年
3期
11-20
,共10页
横摇惯性矩%参数横摇%衡准%弱非线性模型
橫搖慣性矩%參數橫搖%衡準%弱非線性模型
횡요관성구%삼수횡요%형준%약비선성모형
roll moment of inertia%parametric rolling%criterion%weakly non-linear model
迎浪条件下的参数横摇现象，作为一种重要的稳性失效模式受到了国际海事组织（IMO）的高度关注。由于横摇惯性矩对横摇固有周期的作用，使之成为参数横摇的决定性影响因素之一。本文比较了4种实船横摇惯性矩的计算方法，并采用一种三自由度弱非线性模型研究了其对参数横摇预报的影响。辐射力和绕射力的计算基于三维频域理论，时延效应采用脉冲响应函数法考虑。通过对3艘集装箱船的参数横摇敏感性分析，讨论了横摇惯性矩的不同计算方法对运动响应预报的影响，并给出了可用于第二代完整稳性参数横摇衡准的横摇惯性矩简化估算方法。
迎浪條件下的參數橫搖現象，作為一種重要的穩性失效模式受到瞭國際海事組織（IMO）的高度關註。由于橫搖慣性矩對橫搖固有週期的作用，使之成為參數橫搖的決定性影響因素之一。本文比較瞭4種實船橫搖慣性矩的計算方法，併採用一種三自由度弱非線性模型研究瞭其對參數橫搖預報的影響。輻射力和繞射力的計算基于三維頻域理論，時延效應採用脈遲響應函數法攷慮。通過對3艘集裝箱船的參數橫搖敏感性分析，討論瞭橫搖慣性矩的不同計算方法對運動響應預報的影響，併給齣瞭可用于第二代完整穩性參數橫搖衡準的橫搖慣性矩簡化估算方法。
영랑조건하적삼수횡요현상，작위일충중요적은성실효모식수도료국제해사조직（IMO）적고도관주。유우횡요관성구대횡요고유주기적작용，사지성위삼수횡요적결정성영향인소지일。본문비교료4충실선횡요관성구적계산방법，병채용일충삼자유도약비선성모형연구료기대삼수횡요예보적영향。복사력화요사력적계산기우삼유빈역이론，시연효응채용맥충향응함수법고필。통과대3소집장상선적삼수횡요민감성분석，토론료횡요관성구적불동계산방법대운동향응예보적영향，병급출료가용우제이대완정은성삼수횡요형준적횡요관성구간화고산방법。
Parametric rolling in head seas as one of the main stability failure models has attracted significant attentions of the International Maritime Organization (IMO). Roll moment of inertia is one of the key factors for predicting parametric rolling, since it has strong effect on natural roll period. In this paper, total of four calculation methods of roll moment of inertia are compared with each other and a 3 DOF weakly non-linear model is presented to study their effects on the prediction of parametric rolling. Radiation force and diffraction force are calculated based on 3D frequency-domain method, and time-delay effect is taken into account with the help of impulse response theory. The effect of different calculation methods of roll moment of inertia on the response of motion is discussed based on the vulnerability analysis of 3 actual container ships, and a simplified empirical approach of roll moment of inertia is given, which could be applied to the second generation intact stability criteria for parametric rolling prediction.
