Parameter Feasible Region Analysis of the Tethered Net Shooting Error Aiming at UAV
Aiming at the shooting error problem in tethered-net capture of"low,slow and small"unmanned aerial vehicle(UAV),a dynamic model of net deployment and collision based on the spring-mass particle method and Hertz collision theory is established.The evaluation criteria for successful capture of the tether-net under ideal and non-ideal conditions are proposed.At given distance and angle,numerous numerical simulations are conducted to analyze the feasible region of shooting velocity error and shooting time error of the bullets connected to the four corners of the net.A ground-based net launch device with laser speed measurement is employed to validate the accuracy of the proposed model.The comparison between analytical and ground experimental results demonstrates that the tethered net still maintain a high capture tolerance even when there are certain inaccuracies in the launch parameters such as velocity and time.The established dynamic model of the tethered-net is also experimentally validated to be reliable.This paper provides practical guidance for real-world capture missions.
Tethered-net capture of UAVGround experiment of tethered netLaunch errorFeasible region analysis
NETL
NSTL
万方数据
