中国机械工程2019，Vol.30Issue(4)：448-454,7.DOI:10.3969/j.issn.1004-132X.2019.04.010
小型无人机气动肌腱式弹射系统动态仿真与优化
Dynamic Simulation and Optimization of Pneumatic Tendon Ejection Systems for Small UAVs
摘要
Abstract
Aiming at the disadvantages of high impact, large mass and poor dynamic characteristics of impact cylinder UAV ejection system, a bionic pneumatic muscle driven UAV ejection system was proposed.By the method of utilizing the small nonlinearity of pneumatic tendons and configuring the wedge angles, the project may ameliorate the stress conditions of the UAVs and slow down the acceleration fluctuation.The mathematical modeling and dynamic analysis of the ejection system were carried out, and the Simulink model was built to emulate the system.Combing the MATLAB and Simulink, the existing acceleration trajectories were further optimized by multi-objective genetic algorithm.The optimized acceleration track may improve the acceleration mean, the energy utilization rate of the pneumatic muscle and the take-off speed.At the same time, the acceleration peak values are reduced, and the acceleration fluctuations are reduced by 76.79％on the original basis.Simulation and optimization results show that the system may avoid the disadvantages of impact cylinder ejection system, and make the acceleration changes smoothly and reduce the maximum overload of the whole systems.关键词
无人机/气动肌腱/弹射/仿生Key words
unmanned aerial vehicle (UAV)/pneumatic tendon/ejection/bionic分类
航空航天引用本文复制引用
黄国勤,罗莎祁,于今..小型无人机气动肌腱式弹射系统动态仿真与优化[J].中国机械工程,2019,30(4):448-454,7.基金项目
国家自然科学基金资助项目(51375507) （51375507）
