The invention provides a variable-elongation variable-sweepback wing based on mechanical metamaterials, and belongs to the technical field of deformation mechanisms. The mechanism is formed by combining gear and rack transmission and compression-torsion metamaterials, and the wing can change linear motion into linear motion and rotation under the action of the metamaterials through compression and extension motion of an actuator, so that the wing changes sweepback while achieving variable stretching. When the aircraft flies at a high speed or high maneuverability, the actuator shrinks and compresses the mechanical metamaterial, the mechanical metamaterial drives the gear to twist after being compressed, the gear and rack mechanism drives the wing ribs on the outer side to move backwards, the variable sweepback function is achieved, the actuator compresses to enable the distance between the adjacent wing ribs to be closer, and the variable telescopic function is achieved; when the aircraft is in take-off and landing or cruise flight, the actuators are in a telescopic state, the sweepback angle of the wings is minimum, the extension length is longest, and the lift-drag ratio is high.
本发明提供了一种基于机械超材料的变展长变后掠机翼,属于变形机构技术领域。该机构采用齿轮齿条传动和压扭超材料组合而成,该机翼能够通过致动器的压缩和伸出运动,在超材料的作用下,将直线运动变为直线运动加转动,从而机翼实现变伸缩的同时变后掠。当飞行器处于高速飞行或高机动性飞行时,致动器收缩,压缩机械超材料,机械超材料压缩后驱动齿轮扭转,齿轮齿条机构驱动外侧机翼翼肋向后移动,实现变后掠的功能,致动器压缩使得相邻的机翼翼肋距离更近,实现变伸缩功能;当飞行器处于起降或者巡航飞行时,致动器处于伸缩状态,机翼的后掠角最小,展长最长,有较高的升阻比。
Variable-elongation variable-sweepback wing based on mechanical metamaterial
一种基于机械超材料的变展长变后掠机翼
2024-03-15
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |