Design And Optimization Of Camber Continuously Morphing Wing Actuation Mechanism

Along with the advance of science and technology,people’s requirements for various aspects of aircraft performance also have been increased,and various technologies have emerged at this historic moment.In recent years,the research on the morphing wing of morphing aircraft has become a hot spot in the field of aircraft design.As the most abundant of morphing wing,the continuously variable-camber wing has been widely studied by international scholars.Relying on the actuation mechanism to drive and adjust the wing structure,the wing can achieve continuously variable camber so as to obtain a better flight performance.Therefore,the study of camber continuously morphing wing trailing edge(TE)flap actuation mechanism is significant in the civilian and military aspects.In this paper,an in-depth study of morphing wing is conducted with the camber continuously morphing wing TE flap actuation mechanism as the research direction,eccentric beam actuation mechanism(EBAM),fishbonelike actuation mechanism(FBAM),multi-section rib actuation mechanism(MRAM)are designed and optimized.The mathematical model was established and carried out by MATLAB,the finite element(FE)parametric model was established by PYTHON and the finite element simulation results were solved by ABAQUS,the procedures were embedded in an optimization program with the particle swarm algorithm as the core to construct the overall optimization method of the actuation mechanism.The three actuation mechanisms designed in this paper all meet the deformation requirements of the scheme after optimization: EBAM continuously drives the TE flap to achieve accurate deformation of 4 kinds of camber,and the simulation results show that the airfoil quality is good;FBAM continuously drives the TE flap to achieve 15°up-down deflection curve,the stability and driving force under 0.07 MPa aerodynamic load were verified and solved respectively by simulation;MRAM continuously drives the TE flap to achieve 15°up-down deflection curve,the theoretical analysis and simulation results verify the feasibility of MRAM.