电子科技大学学报
電子科技大學學報
전자과기대학학보
JOURNAL OF UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
2013年
2期
311-315
,共5页
覃庆努%魏学业%吴小进%白如雪
覃慶努%魏學業%吳小進%白如雪
담경노%위학업%오소진%백여설
承载能力%负载分担%马尔可夫过程%并联系统%可靠性
承載能力%負載分擔%馬爾可伕過程%併聯繫統%可靠性
승재능력%부재분담%마이가부과정%병련계통%가고성
load capacity%load-sharing%Markov process%parallel system%reliability
针对实际中负载均担并联系统的可靠性受系统总负载和部件承载能力的影响,通过分析实际中部件的承载能力情况建立相应的部件失效率变化模型,利用马尔可夫过程建立负载均担不可修并联系统的通用可靠性模型.从失效率变化模型出发,根据总负载与部件承载能力的不同关系,将系统的通用可靠性模型细分为理想承载模型、最大承载模型和临界承载模型,并计算出各个模型下系统可靠度.以部件独立并联系统和m/n:(F)表决系统为例证,验证模型及计算结果的正确性.
針對實際中負載均擔併聯繫統的可靠性受繫統總負載和部件承載能力的影響,通過分析實際中部件的承載能力情況建立相應的部件失效率變化模型,利用馬爾可伕過程建立負載均擔不可脩併聯繫統的通用可靠性模型.從失效率變化模型齣髮,根據總負載與部件承載能力的不同關繫,將繫統的通用可靠性模型細分為理想承載模型、最大承載模型和臨界承載模型,併計算齣各箇模型下繫統可靠度.以部件獨立併聯繫統和m/n:(F)錶決繫統為例證,驗證模型及計算結果的正確性.
침대실제중부재균담병련계통적가고성수계통총부재화부건승재능력적영향,통과분석실제중부건적승재능력정황건립상응적부건실효솔변화모형,이용마이가부과정건립부재균담불가수병련계통적통용가고성모형.종실효솔변화모형출발,근거총부재여부건승재능력적불동관계,장계통적통용가고성모형세분위이상승재모형、최대승재모형화림계승재모형,병계산출각개모형하계통가고도.이부건독립병련계통화m/n:(F)표결계통위예증,험증모형급계산결과적정학성.
@@@@The reliability of an actual load-sharing parallel system is greatly affected by total load of the system and load capacity of components. A failure rate variation model of components of unrepaired load-sharing parallel systems is established by analyzing the components’ load capacity. Through Markov process, the universal reliability model of load-sharing parallel systems is established. According to the failure rate variation model and the relations between total load of system and load capacity of components, the universal reliability model is classified into ideal load capacity model, maximum load capacity model, and critical load capacity model. The reliability of these three models is derived in this paper. The models and calculation results are verified via case study the reliability analysis of parallel systems with independent components and m/n:(F) voting system.