The invention discloses a flexible wing structure for passively inhibiting flutter based on a multistable plate, and relates to the field of high-altitude long-endurance aircrafts, the flexible wing structure comprises a first wing shell, a second wing shell, a multistable thin plate and an I-beam; the first wing shell is divided into a front part and a rear part; the I-shaped beam penetrates through and is connected with the front part of the first wing shell and the second wing shell; the tail part of the multistable thin plate is connected with the rear part of the first wing shell through a bonding and fixing method, the other end of the multistable thin plate is fixed on one side of the I-shaped beam through a bolt, the surface of the multistable thin plate is provided with circular areas with bistable characteristics, the surface of each circular area is connected with a sucking disc, and the sucking discs are connected with an air source through an air source pipeline; according to the flexible wing structure for passively suppressing flutter based on the multistable plates, through passive switching of the multistable plates, aerodynamic load fluctuation of a wing surface is reduced, the wing is changed into a large-scale vibration state, the problem of large-scale vibration of a high-altitude long-endurance solar aircraft is solved, and flight stability of the aircraft is ensured.
本发明公开了一种基于多稳态板被动抑制颤振的柔性机翼结构,涉及高空长航时飞行器领域,包括第一翼壳、第二翼壳、多稳态薄板和工字梁;第一翼壳分前部分和后部分,工字梁贯穿连接第一翼壳前部分和第二翼壳;多稳态薄板尾部通过粘和固定法与第一翼壳后部分连接,另一端通过螺栓固定在工字梁一侧,其表面具有双稳态特性的圆形区域,每个圆形区域表面连接一个吸盘,吸盘通过气源管道与气源连接;本发明所述的是一种基于多稳态板被动抑制颤振的柔性机翼结构,通过多稳态薄板的被动切换,从而减少了翼面气动载荷波动并使机翼改出大尺度振动状态,解决了高空长航时太阳能飞行器大尺度振动的难题,确保了飞行器的飞行稳定。
Flexible wing structure for passively inhibiting flutter based on multistable plate
一种基于多稳态板被动抑制颤振的柔性机翼结构
2024-10-15
Patent
Electronic Resource
Chinese
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