螺旋桨的四象限推力系数和转矩系数的Matlab实现方法

针对船舶四象限螺旋桨推力系数和转矩系数的计算问题,提出一种基于Matlab的实现方法,将已有数据保存为Excel文档,建立Matlab与Excel的读取通道,然后在Matlab环境中制作操作界面,根据界面中输入的螺旋桨参数利用计算机在数据中进行检索、内插,从而达到直接计算上述系数的目的.通过计算实例和螺旋桨敞水试验结果的比较,可以看出程序设计思想和计算方法是合理的,所得计算结果的精度完全能够满足船舶动态仿真的需要.

Calculating thrust coefficient and torque coefficient of propeller properties across four quadrants based on Matlab

With regard to calculation of thrust and torque coefficients of screw propeller in four-quadrant,a realization method based on MATLAB was established. Firstly,the obtained data was reserved as "Excel" document and the channel between MATLAB and "Excel" document for data reading was established.Secondly,Operation interface was built on MATLAB environment.According to the parameters entered from the interface,the coefficients talked above were obtained by using computer searching and interpolation among the data reserved in the "Excel" document.Finally,the illustrative examples show the effectiveness of the proposed method.