电动航空器自动变距螺旋桨浅析
罗罗“创新精神”号电动飞机采用自动变距螺旋桨
单个螺旋桨叶素的受力分析(升力与阻力d的矢量和在螺旋桨轴上的轴向分量及径向分量分别记作Fz与Fx。所有叶素的Fz之和构成了该螺旋桨叶片的拉力,而单叶素Fx与叶素半径r的乘积则构成了螺旋桨叶片的力矩)
变距螺旋桨运行效率曲线
(V为螺旋桨轴向气流速度;n为螺旋桨转速;D为螺旋桨直径)
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https://hartzellprop.com/a-short-history-of-the-aircraft-propeller/ -
https://airandspace.si.edu/collection-objects/propeller-controllable-pitch-two-blade/nasm_A19350039000 -
https://www.federalregister.gov/documents/2022/11/08/2022-23962/airworthiness-criteria-special-class-airworthiness-criteria-for-the-joby-aero-inc-model-jas4-1 -
https://www.federalregister.gov/documents/2022/12/20/2022-27445/airworthiness-criteria-special-class-airworthiness-criteria-for-the-archer-aviation-inc-model-m001
来源:民机战略观察