The invention provides a distributed propulsion system with propellers of an asymmetric structure, and belongs to the field of distributed propulsion systems. At least two propellers are arranged on an aircraft body in a mirror symmetry mode relative to the vertical direction of the horizontal plane; the guide pipe is arranged on the aircraft main body; the rotor mechanism is arranged in the guide pipe; the rotor mechanism comprises a plurality of rotor blades, the rotor blades are uniformly distributed around a rotating shaft of the rotor mechanism, the rotating radiuses of all the rotor mechanisms are different, the numbers of the rotor blades of all the rotor mechanisms are different, the rotating speeds of all the rotor mechanisms are the same or different, and the blade frequencies of all the rotor mechanisms are different; the propellers with different rotor blade numbers and rotation radiuses are adopted, so that the blade frequencies of the propellers are different when the rotor rotation speeds are the same, the purpose of avoiding blade frequency line spectrum noise superposition is achieved, and the distributed propelling system can achieve the purpose of improving the propelling efficiency under the condition that the generated thrust is the same as that of a conventional single propeller. And higher propulsion efficiency and better acoustic performance are achieved.
本发明提出了一种螺旋桨非对称结构的分布式推进系统,属于分布式推进系统领域,至少两个推进器相对于水平面的垂直方向镜像对称设置在航行器主体上;导管设置在航行器主体上;转子机构设置在导管内;转子机构包括若干转子桨叶,若干转子桨叶围绕转子机构的转轴均匀布设,各转子机构的旋转半径不同,各转子机构的转子桨叶数量不同,各转子机构的转速相同或者不同并使各转子机构的叶频不同;通过采用转子叶数不同且转动半径的推进器,使每个推进器在转子转速相同时的叶频不同,达到避免叶频线谱噪声叠加的目的,使分布式推进系统能够在产生的推力与常规的单推进器相同的情况下,具有更高的推进效率和更良好的声学性能。
Distributed propelling system with propellers of asymmetric structure
一种螺旋桨非对称结构的分布式推进系统
28.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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