System Reliability Assessment Based on Energy Dissipation: Modeling and Application in Electro-Hydrostatic Actuation System

Cui, Xiaoyu; Wang, Shaoping; Li, Tongyang; Shi, Jian

doi:10.3390/en12183572

Cited by 4 publications

(4 citation statements)

References 38 publications

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“…The degradation rate is assumed to follow a Gaussian distribution, which is typically used to describe the growth of wear volume [29], fatigue crack [30], and aging amount [31]. The effectiveness of the growth of the degradation in accordance with a Gaussian distribution was also confirmed in the study of Cui et al [21]. Then, the Monte Carlo sampling simulation method is used to sample the parameters and bring them into the bond graph model of the actuation system to complete the reliability evaluation of the actuation system.…”

Section: Fault Coupling Analysis and Reliability Assessmentmentioning

confidence: 89%

“…The generator provides electrical energy that is converted into rotational mechanical energy through the electric motor, which then drives the high-speed motor that turns the hydraulic pump. The hydraulic pump outputs mechanical energy to the surface after transferring hydraulic energy to the hydraulic cylinder to drive the cylinder's motion [21]. Figure 2 shows the structure diagram of the single control surface actuation system composed of HA and EHA.…”

Section: Bond Graph Model Of Actuation Systemmentioning

confidence: 99%

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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: Fault Coupling Analysis and Reliability Assessmentmentioning

confidence: 89%

Section: Bond Graph Model Of Actuation Systemmentioning

confidence: 99%

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

Zhao

Cui

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Fault detection was realized based on signal separation and sensor fusing. The author of [4] addressed a new reliability model based on energy dissipation by considering performance degradation behaviors. In view of the shortcomings of traditional fault diagnosis methods, a fault diagnosis method based on fault tree was proposed by NI Shao-xu [5].…”

Section: Introductionmentioning

confidence: 99%

A Novel Method for Clutch Pressure Sensor Fault Diagnosis

2020

Vehicles

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As a crucial output component, a clutch pressure sensor is of great importance on monitoring and controlling a whole transmission system and a whole vehicle status, both of which play important roles in the safety and reliability of a vehicle. With the help of fault diagnosis, the fault state prediction of a pressure sensor is realized, and this lays the foundation for further fault-tolerant control. In this paper, a fault diagnosis method of Dual Clutch Transmission (DCT) is designed. Firstly, a Variable Force Solenoid (VFS) valve model is established. A feed-forward input system is added to correct the first-order inertial link of the sensor on the second step. Finally, the parameters of the established system model are identified by using the measured data of the actual transmission and the Genetic Algorithm (GA). An identified model is then used for designing a fault observer. The constant output faults of 0, 3, and 5 V, pulse fault, and bias fault that enterprises are concerned with are selected to simulate and verify the fault observer under four different operating conditions. The results show that the designed fault observer has great fault diagnosis performance.

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“…However, it is difficult to accurately assess a PTS's transmission quality based on "correct" and "incorrect", because the system exists obvious degradation states, viz. multi-state properties during power transmission process [5]. For example, the wear process of hydraulic pump results in multiple pressure and flow output probabilities.…”

Section: Introductionmentioning

confidence: 99%

Reliability modeling based on power transfer efficiency and its application to aircraft actuation system

Cui¹,

Li²,

Wang³

et al. 2020

Eksploatacja i Niezawodność – Maintenance and Reliability

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The power transfer systems (PTS) has special reliability properties, including multiple states and fault dependence. Consequently, traditional binary-state reliability modeling methods cannot accurately evaluate the reliability of PTS. In order to resolve the contradiction between terminal energy demand and power transfer capability of PTS, this paper proposes a novel multi-state reliability model based on power transfer efficiency (PTE) for reliability evaluation of PTS. The multi-state model caused by performance degradation based on PTE is considered in this paper. In addition, the failure correlation in virtue of the system structure and energy allocation mechanism is analyzed in the proposed model, and the corresponding reliability evaluation result is obtained under different terminal energy requirements. The approach is verified on the example of a dual hydraulic actuation system (DHAS), in which the stochastic model based on the generalized stochastic Petri nets (GSPNs) is established and combined with the power transfer capability via universal generating function (UGF). Though changing flow rate to face the degradation rate of hydraulic pump, the reliability assessment of DHAS based on the proposed reliability model is effective and accurate.

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System Reliability Assessment Based on Energy Dissipation: Modeling and Application in Electro-Hydrostatic Actuation System

Cited by 4 publications

References 38 publications

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

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

A Novel Method for Clutch Pressure Sensor Fault Diagnosis

Reliability modeling based on power transfer efficiency and its application to aircraft actuation system

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