| 王智洲,孙霄峰,尹勇,刘春雷.散货船配载仪中完整稳性计算方法研究[J].,2017,57(5):476-481 |
| 散货船配载仪中完整稳性计算方法研究 |
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| DOI：10.7511/dllgxb201705006 |
| 中文关键词: 船舶完整稳性 散货船 配载仪 NAPA软件 |
| 英文关键词: ship intact stability bulk carrier loading computer NAPA software |
| 基金项目:“八六三”国家高技术研究发展计划资助项目(2015AA016404)；海洋公益性行业科研专项经费资助项目(201505017-4)；中央高校基本科研业务费专项资金资助项目(3132016310). |
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| 中文摘要: |
| 为提高散货船配载仪中完整稳性计算精度，基于船舶三维设计数据对完整稳性进行了计算．首先通过对三维设计模型切片得到每个肋位处横剖面型值数据；然后对横剖面型值数据进行等距偏移模拟板厚，得到各肋位处的外板数据；再通过水线面与外板数据求交计算该浮态下的船舶参数；最后按照不同完整稳性计算方法计算复原力臂，绘制出不同载况下的船舶复原力臂曲线．以38 300 t散货船RUI AN CHENG为例，分别采用固定纵倾法和自由纵倾法对其3个典型载况进行实例计算．结果表明，采用静平衡下的自由纵倾法与NAPA计算结果更为接近，复原力臂平均误差为0.003 7 m，最大误差为0.009 4 m，验证了基于三维设计数据进行完整稳性计算的准确性及可行性． |
| 英文摘要: |
| For better computational accuracy of intact stability in bulk carrier loading computer, intact stability is calculated based on ship 3D design data. First, moulded data of transverse sections in each frame are obtained by 3D design model slicing. Then, the shell data in each frame are gained by equidistant offsetting of transverse moulded data to simulate shell thickness. After that, ship parameters in this floating condition are gained by intersecting water plane and shell data. Finally, righting arms are calculated using different intact stability calculation methods and the ship righting arm curves in different loading conditions are plotted. Three typical loading conditions of 38 300 t bulk carrier RUI AN CHENG are selected for calculation using fixed trim and free trim methods. The result shows that the computation result using static equilibrium free trim method is closer with that of NAPA. The average error of righting arm is 0.003 7 m, and the max error is 0.009 4 m. The accuracy and feasibility of the intact stability calculation based on 3D design data are verified. |
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