Braking Models for Short-Distance Recovery of UAV
摘要
Short distance recovery of Unmanned Aerial Vehicle (UAV) based on eddy current braking is a newly developed technology. The UAV is arrested by an arresting cable with eddy current brake, and its kinetic energy is converted into heat through eddy current effect. However, due to the fact that eddy current brake for aircraft is mostly large ground-fixed facility, there is currently no suitable analytical model for optimizing the design of eddy current brake deployed on mobile platform. On the basis of the model of arranging magnetic poles along the disk surface, the analytical models of eddy current brake with magnetic poles arranged along the circumference and their combination are provided based on the equivalent magnetic circuit method, the skin effect and eddy current demagnetization effect in this paper. The results indicate that those models have good accuracy. Due to the fact that analytical models consume less computational time than three-dimensional finite element methods, they can serve as effective tools for optimizing design.