艾亚法修正对西江干线船舶航速预报

Ship Speed Prediction of Xijiang Main Line by Ayre Method

根据西江船模试验的阻力结果,对原版艾亚法通过多元非线性回归分析的方法进行修正,在对艾亚法进行修正的过程中采用MATLAB优化工具箱中的ga求解器对结果进行优化,最后将修正后的艾亚法用于西江干线船舶航速的预报,以"穗港2002"实船测试为例,对其航速预报方法的实用性进行验证。预报得到的航速精度较高,其误差均在5%以内,能满足实际工程应用的要求。

According to the resistance results of the Xijiang ship model test, the originalAyre method is modified by multi-variable nonlinear regression analysis. The results are opti-mized by the ga solver in the MATLAB optimization toolbox in the process of Ayre method.The modified Ayre method is used for the prediction of the ship speed of Xijiang trunk line.The practicability of the speed forecasting method is verified with the example of the ship＂Suigang 2002＂,and the results show that the accuracy of the sailing speed is high and the er-ror is within 5%. It can meet the requirements of practical engineering application.