The invention discloses a piezoelectric-driven large-deformation deformable wing skeleton structure, a wing and an aircraft, the deformable wing structure is composed of at least one Jth-order infinitesimal mechanism, the Jth-order infinitesimal mechanism comprises a static platform, a movable platform and three branch chains connected between the static platform and the movable platform, extension lines of the three branch chains intersect at one point, and the Jth-order infinitesimal mechanism is connected between the static platform and the movable platform. The high-order constraint condition of the planar parallel infinitesimal mechanism is met; at least one branch chain is provided with a piezoelectric actuator for adjusting the length of the branch chain, and the piezoelectric actuator outputs linear displacement to drive the branch chain where the piezoelectric actuator is located to perform axial relative motion, so that the movable platform generates deflection deformation relative to the static platform. By means of the motion amplification characteristic of the infinitesimal mechanism, the linear input of the piezoelectric ceramics can be directly achieved to achieve the displacement amplification effect of more than two orders of magnitude, the high structural efficiency is achieved, and the large-deformation, light-weight and energy-saving deformation wing skeleton structure can be achieved.
本发明公开了一种压电驱动的大变形变形翼骨架结构、机翼及飞机,所述变形翼结构由至少一个第J阶的无穷小机构构成,所述第J阶无穷小机构包括静平台、动平台以及连接在静平台与动平台之间的3个支链,3个所述支链的延长线交于一点,且满足平面并联无穷小机构高阶约束条件;在至少一个所述支链上设置有调节该支链长度的压电驱动器,所述压电驱动器输出直线位移以驱动所在支链发生轴向相对运动,使所述动平台相对于静平台产生偏转变形。本发明利用无穷小机构运动放大特性,可以直接实现对压电陶瓷的线性输入达到两个数量级以上的位移放大效果,具有较高的结构效率,有利于实现大变形、质轻、节能的变形翼骨架结构。
Deformation wing skeleton structure based on infinitesimal mechanism, wing and aircraft
一种基于无穷小机构的变形翼骨架结构、机翼及飞机
2023-09-08
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
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