Simulation-based system reliability analysis of electrohydraulic actuator with dual modular redundancy

This paper describes the failure detection system of an electro-hydraulic actuator with dual modular redundancy based on a concept. is a combination of virtual twin that operates in parallel with the actuator and represents its ideal behaviour, and a digital twin that identifies possible failures using the sensor readings residuals. Simulation-based system reliability analysis helps to generate a dataset for training the digital twin using machine learning algorithms. A systematic failure detection approach based on decision trees and the process of analysing the quality of the result is described.