Self-adaptive deformation driving unit and deformation driving mechanism

Abstract

The invention discloses a self-adaptive deformation driving unit and a deformation driving mechanism, and belongs to the technical field of variant driving. One of the main purposes of the invention is to provide the self-adaptive deformation driving unit, and the self-adaptive deformation driving unit converts the linear displacement output by the piezoelectric stack into the angular displacement, so that the angular displacement output of the self-adaptive deformation driving unit is realized, namely, the self-adaptive angular deformation driving is realized. The second main purpose of the invention is to provide a deformation driving mechanism which is realized based on the self-adaptive deformation driving unit, a plurality of self-adaptive deformation driving units are arranged in an array manner, the units are connected through driving arms, the linear displacement of the piezoelectric stack is converted into angular displacement through the piezoelectric deformation unit, and the linear displacement of the piezoelectric stack is converted into angular displacement. The amplification and superposition of the angular displacement of the piezoelectric deformation units are realized through the unit array layout, and the multi-form deformation driving can be realized as required. The mechanism has the advantages of being simple, compact, large in angle deformation range and high in response driving speed.

Description

technical field [0001] The invention belongs to the field of deformation drive technology, and relates to an adaptive deformation drive unit and a deformation drive mechanism. Background technique [0002] The morphing aircraft will change its shape accordingly according to changes in the flight environment and flight tasks, and always maintain the optimal flight state. The variable camber of the wings is a way for the shape of the morph vehicle to change. Traditional wings mainly rely on motors to drive camber deformation. However, with the gradual exposure of motor defects such as complex structure, large mass, and low output energy density, these defects have begun to seriously restrict the development of wing deformation technology. It has become a research hotspot at home and abroad to replace the motor with an intelligent driving material that is simple, light in weight, and high in output energy density to drive the deformation of the wing. Today's relatively mature...

AI Technical Summary

Problems solved by technology

Traditional wings mainly rely on motors to drive camber deformation. However, with the gradual exposure of motor defects such as complex structure, large mass, and low output energy density, these defects have begun to seriously restrict the development of wing deformation technology. It has become a research hotspot at home and abroad to replace motors with intelligent drive materials that are simple, light in weight, and high in output energy density to drive wing deformation.

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