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首页> 外文期刊>International journal of aerospace engineering >Propeller Force-Constant Modeling for Multirotor UAVs from Experimental Estimation of Inflow Velocity
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Propeller Force-Constant Modeling for Multirotor UAVs from Experimental Estimation of Inflow Velocity

机译：基于进水速度实验估算的多旋翼无人机螺旋桨力常数模型

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Design and simulation of an unmanned aerial vehicle (UAV) highly depends on the thrust produced by a motor-propeller combination. The aim of this paper is to model a generalized mathematical relationship between the motor RPM and the corresponding thrust generated for the preliminary design process of low Reynold's number applications. A method is developed to determine a generalized mathematical model which relates inflow velocity to coefficient of thrust using experimental data from 291 motor-propeller data points, comprising of input RPM and corresponding output thrust. Using this relationship, the Force Constant is calculated, which defines each Thrust-RPM mathematical model. In the first part, expression of the inflow ratio obtained from Blade Element and Momentum Theory (BEMT) is approximated to a simplified form. In the later part, the proposed mathematical model is validated against two new sets of pairs of motor-propeller combinations. A special note in the Appendix talks about the application of this mathematical model. The computed results are found to be in good agreement with the experimental data.
机译：无人机（UAV）的设计和仿真在很大程度上取决于电动机和螺旋桨组合产生的推力。本文的目的是为低雷诺数应用的初步设计过程中的电动机RPM与产生的相应推力之间的广义数学关系建模。开发了一种方法来确定通用数学模型，该模型使用来自291个电动螺旋桨数据点的实验数据将流入速度与推力系数相关联，该数据包括输入RPM和相应的输出推力。使用此关系，可以计算出力常数，该力常数定义了每个Thrust-RPM数学模型。在第一部分中，从叶片元素和动量理论（BEMT）获得的流入比的表达式近似为简化形式。在后面的部分中，针对两组新的电动机/螺旋桨组合对验证了所提出的数学模型。附录中的特别说明讨论了此数学模型的应用。计算结果与实验数据吻合良好。

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