Topology optimization of transmission system of flapping-wing micro aerial vehicle via 3D printing

6th Annual International Conference on Material Science and Engineering

Chen, Zuyong^1 ; Wu, Jianghao^1 ; Zhang, Yanlai^1

BeiHang University, XueYuan Road No.37, HaiDian District, BeiJing, China^1

关键词: Flapping wing micro aerial vehicles;    Mechanical behavior;    Numerical computations;    Optimization modeling;    Structural reliability;    Topology Optimization Method;    Transmission structures;    Transmission systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/397/1/012121/pdf
DOI  :  10.1088/1757-899X/397/1/012121

来源: IOP

【 摘 要 】

3D printing makes the manufacturing of complex and small structures more convenient, which has promoted the development of flapping-wing micro aerial vehicle (FMAV) in recent years. And structural reliability and weight play decisive role in service life and endurance of FMAV transmission system. Though topology optimization design is conducive to obtain a light-weight structure, current researches still lack guidance of considering non-linear factors of 3D printing material. In this paper, experiment as well as numerical computation efforts was acted in concert to gain a reliable topology optimization method. A numerical computation model describing the mechanical behavior of FMAV transmission structure was established and verified by experiments. And then topology optimization modeling method considering non-linear factors was presented and optimization results were verified by dynamic simulation and experiments. Detail comparison of different optimized results based on different load status was carried out to explore the leading factors affecting the optimization results. Engineering guidance for transmission system lightweight design of FMAV with better fatigue resistance was given, which may shed lights on light-weight design for future advanced FMAV.