The invention provides a time sequence-based ship hydrodynamic uncertainty analysis method with coupling of a ship model test and numerical calculation. The method specifically comprises the following steps: S1, calculating the A-class uncertainty UA (RT) of the ship model hydrodynamic test; s2, calculating the B-class uncertainty UB of the ship hydrodynamic test; s3, synthesizing the A-class uncertainty in the S1 and the B-class uncertainty in the S2 to calculate the synthesis uncertainty Uc and the expansion uncertainty Ue of the ship model hydrodynamic test; s4, calculating the numerical uncertainty UN by using a grid iteration test simulation method; s5, calculating confirmation uncertainty UV by using the expansion uncertainty Ue in the S3 and the numerical value uncertainty UN in the S4; and S6, judging whether the numerical uncertainty UN in the step S4 can pass confirmation or not, and outputting the numerical uncertainty UN which passes the judgment. According to the method, data of a finite time sequence of a single ship model hydrodynamic test is fully utilized, repeated tests are not needed, the cost is saved, and the accuracy of a ship hydrodynamic uncertainty analysis result is improved.
本发明提供一种基于时间序列一种船模试验和数值计算相耦合的船舶水动力不确定度分析方法,具体包括:S1:计算船模水动力试验的A类不确度UA(RT);S2:计算船舶水动力试验的B类不确定度UB;S3:将S1中A类不确定度和S2中B类不确定度相合成计算船模水动力试验的合成不确定度Uc和扩展不确定度Ue;S4:利用网格迭代试验模拟的方法计算数值不确定度UN;S5:利用S3所述扩展不确定度Ue和S4所述数值不确定度UN计算确认不确定度UV;S6:判定S4所述数值不确定度UN是否可以通过确认,并将判定通过的数值不确定度UN进行输出。本发明充分利用了单次船模水动力试验有限时间序列的数据,不需要再进行多次重复试验节省了成本,提高了船舶水动力不确定度分析结果的准确度。
Ship hydrodynamic uncertainty analysis method with coupling of ship model test and numerical calculation
船模试验和数值计算相耦合的船舶水动力不确定度分析方法
2024-04-12
Patent
Electronic Resource
Chinese
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