纵倾状态船舶浮态的研究与计算  

Calculation of Floating Condition of a Longitudinal Inclined Ship

作　　者：段兴锋[1,2] 任鸿翔[1] 东昉[3] 

机构地区：[1]大连海事大学航海动态仿真和控制交通行业重点实验室,辽宁大连116026 [2]集美大学航海学院,福建厦门361021 [3]大连海事大学航海学院,辽宁大连116026

出　　处：《中国航海》2015年第1期54-57,共4页Navigation of China

基　　金：国家重点基础研究发展计划("九七三"计划)项目(2009CB320805);辽宁省自然科学基金(201202018);潘金龙基金(ZC2012020)

摘　　要：在大纵倾条件下直接利用静水力曲线表计算船舶浮态会产生较大的误差,从而影响船舶的稳性和强度的计算结果。因此,为能更好地指导船舶实际营运,提出一种以静水力参数表和邦戎曲线表为基础的微倾迭代浮态计算法,改善迭代终止条件,从而提高大纵倾条件下船舶浮态参数的计算精度和收敛速度,为计算船舶的完整稳性和总纵强度打下基础。根据某船装载手册开发船舶装载系统,并对各种装载状态进行浮态计算,结果证明该方法是可行的、有效的。In navigational practice, the floating condition of a ship is usually calculated by means of the hydrostatic parameters and Bonjean curves. The precision is enough when the ship is in even kneel or little trim. But under the condition of large trim the floating center of a ship is variable, which will result in erroneous stability and strength output. A quick and precise iteration method of ship floating condition calculation is presented based on the hydrostatic parameters and Bonjean curves. The convergence rate and the accuracy of the calculation is improved through optimizing the criteria of stopping iter- ation. To verify the calculation method a stowage planning system is developed according to a ship loading manual and the floating conditions under different stowage plans according to proposed calculation method are examined. The results prove that the iteration method is feasible and effective.

关 键 词：水路运输 浮态 微倾迭代法 邦戎曲线 纵倾 

分 类 号：U661.3[交通运输工程—船舶及航道工程]