Design of Morphing Wing Leading Edge with Compliant Mechanism
This paper describes a design process of morphing wing leading edge with a compliant mechanism. A bending-shape design method by thickness optimization of variable cross-section beam is proposed to solve the maximum curvature move in the leading edge of morphing wings. The leading edge is simplified into a four beam elements model with different rectangular sections. The variable cross-section leading edge is optimized by a genetic algorithm. A linear finite element analysis is added to the optimization when the non-convergence occurs. Two driving forces are determined by the same method, which are the conditions of topology optimization. The transmission mechanism is a compliant mechanism designed by topology optimization method based on non-linear structure. The simulation result is given to demonstrate the effectiveness of the proposed method.
KeywordsMorphing wing Bending-shape design method Compliant mechanism Topology optimization
This work was supported in part by the National Key Research and Development Program of China under Grant 2017YFB1300102 and National Natural Science Foundation of China under Grant Nos. 51375383.
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