| 基于三维加速度椭球法的液货舱内部压力解析算法 |
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| 引用本文： | 付喜华.基于三维加速度椭球法的液货舱内部压力解析算法[J].造船技术,2019(1):21-24,31. |
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| 作者姓名： | 付喜华 |
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| 作者单位： | 中国船级社规范与技术中心 |
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| 摘 要： | 通过构造三维坐标系,结合三维立体几何和线性代数向量理论,推导基于三维加速度椭球法的液货舱内部压力解析解计算式。相较于现行的迭代数值计算方法,该法极大地提升了计算效率。通过开展实例计算,比较计算结果,发现推导的解析法较迭代计算法具有精确度更高、运算时间更短、运算更稳定的优点。
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| 关 键 词： | 液化气体船 内部压力 加速度椭球解析算法 IGC规则 |
Analytic Algorithm on Internal Pressure of Liquefied Cargo Tank Based on 3D Acceleration Ellipsoid Method |
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| FU Xihua.Analytic Algorithm on Internal Pressure of Liquefied Cargo Tank Based on 3D Acceleration Ellipsoid Method[J].Journal of Marine Technology,2019(1):21-24,31. |
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| Authors: | FU Xihua |
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| Institution: | (Rules and Technology Center,China Classification Society,Shanghai 200135,China) |
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| Abstract: | Based on the acceleration ellipsoid method described in new IGC Code,the 3D coordinate system is established and the analytical formula on internal pressure of the liquefied cargo tank are derived,combining the geometry and vector theory.Compared with the current iterative numerical calculation method,this analytical method greatly improves the calculation efficiency.It is found that this method has the advantages of higher precision,shorter calculation time and more stable operation than iterative calculation method after example calculation and the comparing among calculation results. |
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| Keywords: | liquefied gas carrier internal pressure analytic algorithm based on acceleration ellipsoid method IGC Code |
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