Library

Availability Growth Modeling and Assessment

by Zigmund Bluvband, PhD; Sergey Porotsky, PhD

Availability Growth process, applied to a system undergoing development and field test, is introduced, and its parameters estimation methodology is developed and presented ...

  • Filetype: pdf
  • Publish date: 2011-01
  • Keywords:RAMS 2011 Proceedings,Reliability Growth, Availability Model, Markov

Modeling and quantification of aging systems for maintenance

by Ziani, Rachid; Roussignol, Michel; Mercier, Sophie ; Lair, William;

This article deals with the maintenance optimization of an air conditioning system. The Piecewise Deterministic Markov Processes method! is used to model this system. The finite volumes algorithm is used to calculate the reliability quantities...

  • Filetype: pdf
  • Publish date: 2010-01
  • Keywords:RAMS 2010 Proceedings,Optimizing Equipment Maintenance, Availability, Markov

Optimization of Multi-State Elements Replacement Policy for Multi-State Systems

by Liu, Yu ; Huang, Hong-Zhong ;

This paper discusses optimizing maintenance policy (planned replacement intervals) for systems where the elements may have operating states spanning a range between fully functional! and completely failed...

  • Filetype: pdf
  • Publish date: 2010-01
  • Keywords:RAMS 2010 Proceedings,Markov, Optimizing Equipment Maintenance

Reliability Analysis of Multi-State Phased-Mission Systems

by Shrestha, Akhilesh; Xing, Liudong; Dai, Yuanshun

In this paper, we propose a hierarchical modeling approach that integrates an efficient multi-valued decision diagram model for representing the system structure function at the upper level and Markov models for describing components’behaviors.....

  • Filetype: pdf
  • Publish date: 2009-02
  • Keywords:RAMS 2009 Proceedings,Markov, Reliability Analysis

System Reliability Analysis Considering Fatal and Non-Fatal Shocks in a Fault Tolerant System

by Xing, Liugong; Boddu, Prashanthi; Sun, Yan (Lindsay)

In this paper, we consider two types of common-cause shocks: fatal and non-fatal in the reliability evaluation of fault-tolerant systems...

  • Filetype: pdf
  • Publish date: 2009-02
  • Keywords:RAMS 2009 Proceedings,System Reliability, Fault Tree Analysis, Networks, Markov, Reliability Model

Optimal Highway Maintenance Policies under Uncertainty

by Castanier, Bruno;Yeung, Thomas G.

We develop an inspection and maintenance policy to minimize the cost of maintaining a given section of road or highway when there is a great deal of uncertainty in the degradation process..

  • Filetype: pdf
  • Publish date: 2008-02
  • Keywords:RAMS 2008 Proceedings,R&M Modeling and Optimization, Markov, Degradation

A Unified Model for Evaluating the Safety Integrity Level of Safety Instrumented Systems

by Bukowski, Julia

This paper proposes a new figure of merit (FOM) for evaluating safety integrity levels (SIL) for safety instrumented systems (SIS)...

  • Filetype: pdf
  • Publish date: 2008-02
  • Keywords:RAMS 2008 Proceedings,Safety and Risk Management, Reliability Model, Probabilistic Risk Assessment, Markov

Analysis of the Performance of Safety-Critical Systems with Diagnosis and Periodic Inspection

by Zhang, Tieling; Wang, Yiming; Xie, Min

This paper presents a method for analysis of performance indexes of safety-critical systems...

  • Filetype: pdf
  • Publish date: 2008-02
  • Keywords:RAMS 2008 Proceedings,Safety and Risk Management, Markov, Availability

Reliability Modeling for Dependent Competitive Failure Processes

by Wang, Zhong-Lai; Huang, Hong-Zhong

In this paper, a new system reliability model is proposed for systems that involve dependent and competitive degradations and shocks. This model will have wide application in many fields...

  • Filetype: pdf
  • Publish date: 2008-02
  • Keywords:RAMS 2008 Proceedings,Degradation, Reliability Model, Markov

Optical Monitoring System Availability Optimization via Semi-Markov Processes and Genetic Algorithms

by das Chagas Moura, Marcio; Firmino, Paulo Renato; Droguett, Enrigque Lopez; Jacinto, Carlos Magno C.

Provided that preventive maintenance actions promote rejuvenation impact on availability indicator, this paper proposes an approach to maximize the mean availability by identifying an optimal maintenance policy for downhole optical monitoring systems...

  • Filetype: pdf
  • Publish date: 2008-02
  • Keywords:RAMS 2008 Proceedings,Reliability and Availability Assessment, Markov

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