Torque Limiters for Aerospace Actuator Application

Safety and reliability of electrical actuators are essential for success all electric more aircrafts (MEA). Torque limiters improve the electromechanical (EMA) by restricting amount force experienced actuator drive train components. If transmitted torque in shaft exceeds a limit, it gives way controlled manner. This protects from potential failure jamming. In this paper, different types existing investigated their suitability aerospace EMA application further integration within motor. They classified based on transmission mechanism each type is described detail. Operating principle basic characteristics reported. Comparative evaluation commercially available devices presented. It found that those friction permanent magnet most suitable due to good density, high speed capability. Further, characteristics, limiter motor paper. An example considered integration. Different options limiting described. Reduction overall volume shown options. Such can lead improved as well higher power density resulting next-generation drives MEA.