On system reliability approaches: a brief survey

Ram, Mangey

doi:10.1007/s13198-013-0165-6

Cited by 78 publications

(37 citation statements)

References 132 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Multi-component structures are being used in every sphere of engineering sector (Lakhoua [1]; Ram [2]) such as communication systems, computer systems, etc. The k-out-of-n structures have been extensively studied in recent years.…”

Section: Introductionmentioning

confidence: 99%

Performance of a Structure Consisting a 2-Out-of-3:F Substructure Under Human Failure

Ram

Kumar

2014

Arab J Sci Eng

Self Cite

View full text Add to dashboard Cite

In recent years, the studies of reliability properties of consecutive k-out-of-n structures have attracted a great impact of attention from both theoretical and practical approaches. In this paper, we have studied the reliability measures of a complex structure, which consists of two substructures namely, A and B handling by human operators. The substructure A is of the type 2-out-of-3:F (with unequal components), which is connected with the substructure B in series configuration. The complete structure can be failed due to the failure of any two components of substructure A, any component of A with failure of substructure B and due to human error. All failure and repair rates are assumed to be constant. The structure is analyzed by the usage of supplementary variable technique and Laplace transformation. Generalized expressions of state probabilities, availability and reliability of the structure, mean time to failure, cost analysis and sensitivity analysis are developed.

show abstract

Section: Introductionmentioning

confidence: 99%

Performance of a Structure Consisting a 2-Out-of-3:F Substructure Under Human Failure

Ram

Kumar

2014

Arab J Sci Eng

Self Cite

View full text Add to dashboard Cite

show abstract

“…Approaches such as the use of cost-benefit analysis (CBA), Pareto chart and cause and effect matrix can be used in selecting improvement initiatives as surveyed by Bañuelas et al (2006) as cited in Marriot et al (2013). However, owing to its simplicity and ease for use for practical purposes, the RPN which commonly based on the 1-10 ordinal scale of failure occurrence, detect ability and severity ratings is still the most commonly used basis for ranking the risk of failure modes that demand immediate actions (Ram, 2013). Nevertheless, relying only on the RPN Index as the basis for selecting improvement initiatives has serious limitations.…”

Section: Introductionmentioning

confidence: 99%

Integrating SWOT analysis into the FMEA methodology to improve corrective action decision making

Sutrisno

Kwon

Gunawan

et al. 2016

IJPQM

View full text Add to dashboard Cite

Posting the Accepted Manuscript*  on the Author's personal or departmental web pages or social media at any point after publication and/or  on institutional repositories and/or subject repositories subject to an embargo of 6 months after publication or  on academic social networks such as Mendeley, ResearchGate or Academia.edu subject to an embargo of 6 months after publication;In all cases, acknowledgement in the form of a full citation must be given to the journal as the original source of publication, together with a link to the journal webpage and/or DOI as soon as they are available. considered in previous studies. In order to address these limitations, a model is proposed in which the impact of environmental factors is considered by integrating SWOT analysis into the FMEA method in order to support the appraisal of competing risk-based improvement efforts. The impact of SWOT variables is deployed using a decision support model based upon the benefit, cost, opportunity, risk and organisational readiness index (BCOR2) approach in order for the FMEA team to select from competing corrective actions. A case example from industry is provided in which the proposed model is applied. This example illustrates that this new model contributes successfully to good practice by identifying the most appropriate corrective action option to take and improves upon the decisions provided by existing developments of the FMEA methodology.

show abstract

“…1 in which ''success criteria analysis'' provides PRA with supportive thermo-hydraulics (TH) calculations. Interested readers are referred to Ram (2013) for further details of a comprehensive PRA and its applications (Manglik and Ram 2015). Techniques such as Fault Tree Analysis (FTA) are also equally effective for evaluating the frequency of occurrence of unsafe events in PRA through system analysis as addressed in Fig.…”

Section: Introductionmentioning

confidence: 99%

Evaluating thermo-hydraulics uncertainties of success criteria in probabilistic risk assessment

Hoseyni

Karimi

Yousefpour³

2016

Int J Syst Assur Eng Manag

View full text Add to dashboard Cite

Success criteria analysis in nuclear power plants is based on thermo-hydraulics (TH) evaluation of the plant response to postulated accidents for the development of a risk model. PRA (Probabilistic Risk Assessment) uncertainties originate from diverse sources, including uncertainty of success criteria. A comprehensive uncertainty treatment methodology is therefore needed for the quantification of PRA uncertainty considering the success criteria uncertainty. This paper covers the topic and introduces a systematic framework for this purpose. The proposed methodology is capable of including model uncertainty of success criteria in the plant risk model which is not formally performed in industrial practice. An extension is proposed for the traditional event trees to include a new top event for taking the effect of TH uncertainties into account. The required probability density function for this top event is obtained by performing TH uncertainty analysis and statistical interpretation of the obtained results. The application of the methodology is sought by its implementation on real case of loss of coolant accident in a PWR type nuclear power plant.

show abstract

On system reliability approaches: a brief survey

Cited by 78 publications

References 132 publications

Performance of a Structure Consisting a 2-Out-of-3:F Substructure Under Human Failure

Performance of a Structure Consisting a 2-Out-of-3:F Substructure Under Human Failure

Integrating SWOT analysis into the FMEA methodology to improve corrective action decision making

Evaluating thermo-hydraulics uncertainties of success criteria in probabilistic risk assessment

Contact Info

Product

Resources

About