2008 Annual Reliability and Maintainability Symposium最新文献_第9页

Availability analysis of systems with suspended animation 假死系统的可用性分析

2008 Annual Reliability and Maintainability Symposium Pub Date : 2008-01-28 DOI: 10.1109/RAMS.2008.4925809

D. Huffman, R. Bergman, S. Amari, M. Zuo

引用次数: 8

Construction of causality diagram model for diagnostics 诊断学因果图模型的构建

2008 Annual Reliability and Maintainability Symposium Pub Date : 2008-01-28 DOI: 10.1109/RAMS.2008.4925777

Guo Li, Jianmin Gao, Fumin Chen

引用次数: 6

Maintenance policy for a non-stationary deteriorating system 非平稳退化系统的维护策略

2008 Annual Reliability and Maintainability Symposium Pub Date : 2008-01-28 DOI: 10.1109/RAMS.2008.4925846

E. Deloux, B. Castanier, C. Bérenguer

{"title":"Maintenance policy for a non-stationary deteriorating system","authors":"E. Deloux, B. Castanier, C. Bérenguer","doi":"10.1109/RAMS.2008.4925846","DOIUrl":"https://doi.org/10.1109/RAMS.2008.4925846","url":null,"abstract":"This paper deals with the maintenance optimization of a system subject to a stressful environment. The behavior of system deterioration can be modified by the environment. Reciprocally, the environment condition can be influenced by the system state and so, a change in the environment can be an indicator of the system state. We propose a condition-based maintenance decision framework to tackle the potential variations in the system deterioration, and especially in the deterioration rate, and the new information on the system state given by the evolution of the environmental variable. In this work, a degradation model is first developed to integrate the reciprocal influence on the system behaviour and the environment. A specific maintenance policy is constructed which combines a classical condition-based maintenance policy for the system state with a condition monitoring method to track the environmental changes. A long-run maintenance cost criteria is developed and numerical experiments are provided to highlight the benefits of our approach. The main conclusion of this study is the necessity to take into account the environment influence on the system state and we provide here an adequate maintenance framework for the decision-maker.","PeriodicalId":143940,"journal":{"name":"2008 Annual Reliability and Maintainability Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122425037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Reliability for cluster-based Ad-hoc Networks 基于集群的Ad-hoc网络的可靠性

2008 Annual Reliability and Maintainability Symposium Pub Date : 2008-01-28 DOI: 10.1109/RAMS.2008.4925802

J. L. Cook, J. Ramírez-Márquez

{"title":"Reliability for cluster-based Ad-hoc Networks","authors":"J. L. Cook, J. Ramírez-Márquez","doi":"10.1109/RAMS.2008.4925802","DOIUrl":"https://doi.org/10.1109/RAMS.2008.4925802","url":null,"abstract":"The Mobile Ad-hoc Wireless Network (MAWN) is a new and emerging network scheme that is being employed in a variety of applications. The MAWN varies from traditional networks because it is a self-forming and dynamic network. The MAWN is free of infrastructure and as such only the mobile nodes comprise the network. Nodes communicate either directly or through other nodes. To do so each node acts as source, destination, and relay. The virtue of a MAWN is the flexibility this provides however the challenge for reliability analyses is also brought about by this unique feature. The variability and volatility of the MAWN's configuration makes typical reliability methods (e.g. reliability block diagram) inappropriate because no single structure or configuration represents all manifestations of a MAWN. For this reason, new methods are being developed to analyze the reliability of this new networking technology. New published methods adapt to this feature by treating the configuration probabilistically or by inclusion of mobility models. This paper expands upon these works by modifying the problem formulation to utilize a Monte Carlo simulation technique for the reliability analysis of a cluster-based MAWN. The cluster-based MAWN is deployed in applications with constraints or limits on the networking resources such as bandwidth and energy. This paper presents the problem's formulation, a discussion of applicable reliability metrics for the MAWN, and illustration of the method through the analysis of several example networks. Within this paper, a new and innovative use of the general MC simulation approach will be described that allows the practitioner to quickly approximate the reliability of a MAWN and understand the interactions of the characteristics that describe the MAWN; namely node reliability, node mobility, and transport (cluster) layer design. This paper is a follow on from one presented at RAMS 2007.","PeriodicalId":143940,"journal":{"name":"2008 Annual Reliability and Maintainability Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122469052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

On determining sample size and testing duration of repairable system test 可修系统测试中样本量和测试时间的确定

2008 Annual Reliability and Maintainability Symposium Pub Date : 2008-01-28 DOI: 10.1109/RAMS.2008.4925781

Huairui Guo, R. Pan

引用次数: 13

Reliability analysis of k-out-of-n load-sharing systems k-out- n负荷共享系统可靠性分析

2008 Annual Reliability and Maintainability Symposium Pub Date : 2008-01-28 DOI: 10.1109/RAMS.2008.4925836

S. Amari, Relex Robert Bergman

{"title":"Reliability analysis of k-out-of-n load-sharing systems","authors":"S. Amari, Relex Robert Bergman","doi":"10.1109/RAMS.2008.4925836","DOIUrl":"https://doi.org/10.1109/RAMS.2008.4925836","url":null,"abstract":"Load-sharing systems have several practical applications. In load-sharing systems, the failure of a component will result in a higher load on each of the surviving components, thereby inducing a higher failure rate for them. This introduces failure dependency among the load-sharing components, which in turn increases the complexity in analyzing these systems. Therefore, in spite of a wide range of applications for load-sharing systems, the methods for computing the reliability of load-sharing systems are limited. In this paper, we first discuss the modeling concepts of load-sharing systems and explain the role of accelerated life testing models in analyzing these systems. We also describe existing analysis methods and their limitations in analyzing load-sharing systems. In modeling load-sharing systems with general failure distributions, it is important to consider an appropriate model to incorporate the effects of loading history. In this paper, we explore using the cumulative exposure model to account for the effects of loading history. We present an efficient method to compute the reliability and mean life of k-out-of-n load-sharing systems with identical or non-identical components following general failure distributions. The method can solve large k-out-of-n systems in a short time. Further, we show how to use the existing computational procedures for solving stochastic reward models for solving load-sharing models. In addition to the exact solutions, we also propose efficient approximations and bounds that can be computed easily. The computational procedure and the bounds proposed in this paper help reliability engineers to accurately model the load-sharing systems that arise in many practical situations.","PeriodicalId":143940,"journal":{"name":"2008 Annual Reliability and Maintainability Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131817101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 75

An integrated maintenance management information system is the key to enabling condition based maintenance 综合维修管理信息系统是实现状态维修的关键

2008 Annual Reliability and Maintainability Symposium Pub Date : 2008-01-28 DOI: 10.1109/RAMS.2008.4925848

F. Sautter, P.W. Jemison, C.M. Goes, J. Wooten

引用次数: 2

Parameter estimation for a repairable system under imperfect maintenance 不完全维护下可修系统的参数估计

2008 Annual Reliability and Maintainability Symposium Pub Date : 2008-01-28 DOI: 10.1109/RAMS.2008.4925834

Pingjian Yu, J. Song, C. R. Cassady

引用次数: 14

Applying Bayes linear methods to support reliability procurement decisions 应用贝叶斯线性方法支持可靠性采购决策

2008 Annual Reliability and Maintainability Symposium Pub Date : 2008-01-28 DOI: 10.1109/RAMS.2008.4925819

T. Bedford, R. Denning, M. Revie, L. Walls

引用次数: 3