Hierarchical Modelling and Simulation of a Novel Integrated Electro-Mechanical Hydrostatic Actuator Based on Bond Graph

Yan, Xudong; Yu, Liming; Zhao, Jingcheng; Fu, Jian; Fu, Yongling

doi:10.1007/978-981-13-2291-4_59

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2021

2023

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“…It is suitable for the study of fault analysis of complex electromechanical systems. Yan et al [19] used bond graphs to build detailed models of the electromechanical hydrostatic actuator, laying the groundwork for subsequent studies.…”

Section: Introductionmentioning

confidence: 99%

Fault Coupling Analysis and Reliability Assessment of Actuation System Based on Bond Graph Model

Zhao

Cui

et al. 2023

Applied Sciences

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In this paper, a new degradation model of the more electrical aircraft (MEA) actuation system is proposed. The bond graph model is used to build the dissimilar redundancy actuation system model, taking into account the degradation behavior (wear, fatigue, aging) of components in the system operation and the fault coupling phenomenon caused by the accumulation of dissipated energy in space and time, and a fault coupling degradation model of the actuation system is established with clear mechanism support. Through the fault mechanism analysis, various fault types are injected into the bond graph model of the actuation system, and the simulation results are compared. The influence of fault propagation on system output is analyzed, the system’s reliability is assessed, and the performance evaluation of the actuation system is realized while taking the fault coupling mechanism into account.

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Section: Introductionmentioning

confidence: 99%