The invention belongs to the technical field of helicopter engineering, and relates to a strong sector active control method for eliminating lift fluctuation of a rigid coaxial rotor, which comprises the following steps: (1) determining the position and size of a sector according to the number of blades of the rotor of a helicopter; (2) constructing outer circulation balancing iteration, and balancing the aerodynamic force of the whole aircraft through the overall total pitch and the periodic variable pitch of the rotor wing in one circle; (3) constructing internal loop trim iteration, and eliminating the lift fluctuation of the rotor wing through active control of the blade pitch in the sector; and (4) the step (2) to the step (3) are repeated until the conditions that the whole aircraft is balanced and the lift fluctuation is eliminated are met at the same time. According to the method, lift fluctuation elimination can be achieved with low active control manipulation and low rotor performance loss.

    本发明属于直升机工程技术领域,涉及一种用于刚性共轴旋翼升力波动消除的强扇区主动控制方法,包括:(1)通过直升机的旋翼的桨叶片数确定扇区位置和大小;(2)构建外循环配平迭代,通过旋翼一周整体的总距和周期变距平衡全机的气动力;(3)构建内循环配平迭代,通过扇区内的桨叶桨距主动控制来消除旋翼升力波动;(4)重复步骤(2)~步骤(3),直至同时满足全机平衡以及升力波动被消除的条件。本发明方法能够以较低的主动控制操纵和较少的旋翼性能损失实现升力波动消除。


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    Title :

    Strong sector active control method for eliminating lift fluctuation of rigid coaxial rotor


    Additional title:

    用于刚性共轴旋翼升力波动消除的强扇区主动控制方法


    Contributors:

    Publication date :

    2024-09-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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