An Improved Fault Identification Method for Electromechanical Actuators

oleh: Gaetano Quattrocchi, Pier C. Berri, Matteo D. L. Dalla Vedova, Paolo Maggiore

Format: Article
Diterbitkan: MDPI AG 2022-06-01

Deskripsi

Adoption of electromechanical actuation systems in aerospace is increasing, and so reliable diagnostic and prognostics schemes are required to ensure safe operations, especially in key, safety-critical systems such as primary flight controls. Furthermore, the use of prognostics methods can increase the system availability during the life cycle and thus reduce costs if implemented in a predictive maintenance framework. In this work, an improvement of an already presented algorithm will be introduced, whose scope is to predict the actual degradation state of a motor in an electromechanical actuator, also providing a temperature estimation. This objective is achieved by using a properly processed back-electromotive force signal and a simple feed-forward neural network. Good prediction of the motor health status is achieved with a small degree of inaccuracy.