propeller thrust

In this paper the torque characteristic of open water diagram at zero-thrust pitch is explored by means of applying the general concept of zero-thrust operation condition of controllable-pitch propeller.

文章利用可调螺距螺旋桨零推力工况的一般概念来求解零推力螺距工况的敞水力矩特性。

After calculating the output power of submersible propeller based on thrust, the axial power and the installed power necessary for submersible propeller can be calculated by efficiency of propeller and efficiency of motor which are supplied by the manufactory.

根据推力计算出推动器的输出功率后，可通过厂家提供的产品螺旋桨效率η螺和电机效率η电机来求得推动器所需要的轴功率和装机功率。

Then, using propeller lifting line theory to calculate the geometric theory parameters and the hydrodynamic parameters, calculated pressure distribution, thrust coefficient and torque system number with the lifting surface theory, using the panel method to calculate propeller thrust coefficient and torque coefficient.

然后，用升力线理论计算了螺旋桨的几何参数和水动力参数，并用用升力面理论计算了压力分布、推力系数和扭矩系数，用面元法计算了螺旋桨的推力系数和扭矩系数。

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

螺旋桨的四象限推力系数和转矩系数的Matlab实现方法

In recent years, to satisfy the demand for larger scale and higher velocity of ships, the thrust force of propeller and the velocity of propeller jet are continuously increasing.

近年来，为满足船舶高速化和大型化的要求，船用螺旋桨的推力及其引起的射流流速也在不断增大。

In order to satisfy the operation requirement of the rated thrust of the propeller, the propulsion motor performs only in rated torque on the low speed, so the motor power is low.

认为以满足螺旋桨额定推力为目的，推进电动机只需要低速输出额定转矩来实现，即输出功率较低。

Change an approximation method for calculating thrust variation of propeller in waves

波浪中螺旋桨推力变化的近似计算

The mathematical expressions with high accuracy of propeller thrust coefficient are given by the regression analysis.

运用多元多项式的回归分析方法给出了螺旋桨推力系数K T值的一种精度较高的数学表达式。

Calculation results show that through interaction characteristic optimization, the efficiency of the integrated propulsor can be dramatically increased compared with individual propeller under the same thrust load coefficient.

计算结果表明，与单独螺旋桨推进器相比，在同样的推力负荷下，干扰特性优化可使组合推进器敞水效率大幅度地提高。

It is also pointed out that the flow fields are quite different in water tunnel and towing tank even if the thrust coefficients or thrust loading coefficients of the propeller model are the same.

同时还指出，水筒中螺旋桨的推力或负荷系数与水池敞水试验值相同时，其流场仍然是不同的。

The ships maintain or change course and speed by using propeller thrust force and rudder strength.

船舶是借助螺旋桨的推力和舵力来保持或改变航向和航速的。