破损船舶自由浮态计算  

Ship damage floating calculation

作　　者：林焰[1] 李铁骊[1] 纪卓尚[1] 

机构地区：[1]大连理工大学船舶CAD工程中心,辽宁大连116024

出　　处：《大连理工大学学报》2001年第1期85-89,共5页Journal of Dalian University of Technology

基　　金：国家教育部"跨世纪优秀人才培养计划"资助项目!( 1999);高等学校博士学科点专项科研基金资助项目!(2000014125)辽宁省科技攻关资助

摘　　要：在船舶不沉性理论的基础上,叙述了船体计算坐标系和浮态参数的选取、角坐标变换、破损 船舶浮态计算的数学模型和水线下船体要素的定义. 在倾斜水线与船体表面求交点时,采用 坐标转换方法,并应用Green公式计算船体水线下和淹水舱的有效要素；简化了计算方法,提高 了利用Newton迭代法求解浮态平衡方程的收敛性和精确性,同时也方便了计算机软件的编程. 通过对实船的设计结果分析,证明了该方法的先进性和工程实用性.A systematic analysis on all the theoretical or applicable research results has been conducted in this field at home and abroad. For the purpose of correctness and practicalness, the Green formula is applied to ship floating calculation as regard to the critical problem as how to calculate the coordinates of the inter section point and all the geometric principles of under-water hull or the immer sed compartment. And then the method of floating condition by means of Newton it eration for resolution of the floating equilibrium equations is discussed in det ail. The program has been developed accordingly by importing the new technologie s in computer science. At last, it can be seen that the new approach is a short -cut method that is very advanced and practicable by the given examples of calc ulation of ship floating, so it can be offered to the practical use to calculate damage floatation and stability in ship design.

关 键 词：船体 破舱 浮态 计算机辅助设计 破损船舶 自由浮态 性能计算 

分 类 号：U661.21[交通运输工程—船舶及航道工程] U662.9[交通运输工程—船舶与海洋工程]