Reliability Analysis of Aircraft Servo-Actuation Systems Using Evidential Networks
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Jianping Yang
,
Rui Sun
Abstract
Servo-actuation system is one of the key executing subsystems of the flight control system of an aircraft. With the development of fly-by-wire control systems, redundant servo-actuation systems have been extensively applied. A servo-actuation system has a long life and high reliability, which results in the lack of failure information. In the mean time, available data is insufficient and imprecise during its design stage. In this paper, evidential networks (EN) are used to handle imprecise probabilities. The formulae of marginal belief mass for series system, parallel system, series-parallel system and parallel-series system are represented respectively. The basic reliability model and the mission reliability model of a three-redundancy servo-actuation system in an aircraft flight control system are analyzed using EN approach, respectively. The EN manage and quantify the imprecision of the servo-actuation effectively, and propagate imprecision from the root nodes to the top nodes representing the system reliability.
©2012 by Walter de Gruyter Berlin Boston
Artikel in diesem Heft
- Masthead
- Effect of Tab Geometry on the Development of a Jet Issuing from a Rectangular Nozzle
- Reliability Analysis of Aircraft Servo-Actuation Systems Using Evidential Networks
- Improvements in Off Design Aeroengine Performance Prediction Using Analytic Compressor Map Interpolation
- A Practical Method for Determining the Corten-Dolan Exponent and Its Application to Fatigue Life Prediction
- Effect of Soot Particles on Supersonic Rocket Plume Properties
- Evidential Networks for Fault Tree Analysis with Imprecise Knowledge
- Experimental Research on Induction Systems of an Air-breathing Valveless Pulse Detonation Engine
Artikel in diesem Heft
- Masthead
- Effect of Tab Geometry on the Development of a Jet Issuing from a Rectangular Nozzle
- Reliability Analysis of Aircraft Servo-Actuation Systems Using Evidential Networks
- Improvements in Off Design Aeroengine Performance Prediction Using Analytic Compressor Map Interpolation
- A Practical Method for Determining the Corten-Dolan Exponent and Its Application to Fatigue Life Prediction
- Effect of Soot Particles on Supersonic Rocket Plume Properties
- Evidential Networks for Fault Tree Analysis with Imprecise Knowledge
- Experimental Research on Induction Systems of an Air-breathing Valveless Pulse Detonation Engine
