Reliability Analysis of Phased Missions

Esary, J. D.; Ziehms, Harald.

doi:10.21236/ada008290

Cited by 99 publications

(72 citation statements)

References 7 publications

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“…A method proposed by Esary and Ziehms [1] involves the transformation of a multi-phase mission to that of an equivalent single phase mission. This transformation process involves three stages and is only concerned with the failure of the mission.…”

Section: Previous Fault Tree Methods For Phased Missionsmentioning

confidence: 99%

“…The fault tree approach represents the failure logic of the system in an inverted tree structure, and allows for both qualitative and quantitative system reliability analysis to take place. The earliest inspection of the analysis of phased missions was that carried out by Esary and Ziehms [1]. This research employed a fault tree method by which the mission is split into consecutive phases whereby each phase performs a specified task.…”

Section: Introductionmentioning

confidence: 99%

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Phased mission modelling using fault tree analysis

Band

Andrews

2004

Proceedings of the Institution of Mechanical Engineers, Part E:

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Abstract:Many types of system operate for missions which are made up of several phases. For the complete mission to be a success, the system must operate successfully during each of the phases. Examples of such systems include an aircraft flight, and also many military operations for both aircraft and ships. An aircraft mission could be considered as the following phases: taxiing to the runway, takeoff, climbing to the correct altitude, cruising, descending, landing and taxiing back to the terminal. Component failures can occur at any point during the mission but their condition may only be critical for one particular phase. As such it may be that the transition from one phase to another is the critical event leading to mission failure, the component failures resulting in the system failure may have occurred during some previous phase. This paper describes a means of analysing the reliability of non-repairable systems which undergo phased missions. Fault Tree Analysis has been used as the method to assess the system performance. The results of the analysis are the system failure modes in each phase (minimal cut sets), the failure probability in each phase and the total mission unreliability. To increase the efficiency of the analysis the fault trees constructed to represent the system failure logic are analysed using a modularisation method. Binary Decision Diagrams (BDD's) are then employed to quantify the likelihood of failure in each phase.

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Section: Previous Fault Tree Methods For Phased Missionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phased mission modelling using fault tree analysis

Band

Andrews

2004

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…A number of methods have been utilised to analyse phased missions, such as Fault Tree Analysis (FTA) [5], Markov analysis [6], Binary Decision Diagrams (BDD) [7,8] and Cause Consequence Analysis (CCA) [9]. The suitability of each of these analysis methods for use in a prognostics capability is shown in Table 1.…”

Section: B Suitable Methods Of Analysismentioning

confidence: 99%

A reliability-based approach to mission planning in multi-platform phased missions

Prescott

Andrews

2009

2009 8th International Conference on Reliability, Maintainability and Safety

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“…Estimating the mission reliability by the product of the phase reliabilities results in inaccuracies (in the system reliability), since basic events are shared among logic models of the various phases which are not then independent. Esary and Ziehms [2] used a fault tree method for the analysis of the 2 phased missions for non-repairable systems. They introduced basic event transformation and cut set cancellation techniques.…”

Section: Introductionmentioning

confidence: 99%

Cause–consequence analysis of non-repairable phased missions

Vyzaite

Dunnett

Andrews

2006

Reliability Engineering & System Safety

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Many systems can be modelled as a mission made up of a sequence of discrete phases. Each phase has a different requirement for successful completion and mission failure will result if any phase is unsuccessful. Fault tree analysis and Markov techniques have been used previously to model this type of system for non-repairable and repairable systems respectively. Cause-consequence analysis is an alternative assessment technique capable of modelling all system outcomes on one logic diagram. The structure of the diagram has been shown to have advantageous features in both its representation of the system failure logic and its subsequent quantification, which could be applied to phased mission analysis.This paper outlines the use of the cause-consequence diagram method for systems undergoing non-repairable phased missions. Methods for construction of the causeconsequence diagram are first considered. The disjoint nature of the resulting diagram structure can be utilised in the later quantification process. The similarity with the Binary Decision Diagram method enables the use of efficient and accurate solution routines.

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Reliability Analysis of Phased Missions

Cited by 99 publications

References 7 publications

Phased mission modelling using fault tree analysis

Phased mission modelling using fault tree analysis

A reliability-based approach to mission planning in multi-platform phased missions

Cause–consequence analysis of non-repairable phased missions

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