哈尔滨工程大学学报2012，Vol.33Issue(4)：496-500,5.DOI:10.3969/j.issn.1006-7043.201104090
小子样状态下舰船特种阀门可靠性评估方法
Research on the reliability assessment of special vessel valves under a small sample condition
摘要
Abstract
In order to reduce the difficulty of assessing special vessel valves, a new method of reliability assessment was proposed based on Bayes theory and similarity theory. The posterior distribution was obtained from prior information and current data, and then the precise similarity value between the new valve and the old one was calculated by using similarity theory. The fused posterior distribution was acquired by means of the integration of the history posterior and the posterior distribution. Combined with an example, lower confidence limits of reliability on a new special valve obtained by classical methods, traditional Bayesian analysis, and the new method proposed here were listed and analyzed. Therefore, the scientific quality and applicability of the new method proposed in this paper were verified. The features of two-parameter Weibull distribution of the new valve were analyzed, and the reliability function and reliability life expressions were obtained. Additionally, the calculation results were used as the criteria of product acceptance. Reliability evaluation precision was improved by this method in practical applications and the quantity of the test samples was significantly reduced.关键词
舰船特种阀门/可靠性评估/Bayes理论/相似性理论/寿命分布Key words
vessel special valve/ reliability assessment/ Bayes theory/ similarity theory/ life distribution分类
通用工业技术引用本文复制引用
刘少刚,李少杰,舒海生,赵丹,李芳,谷青明..小子样状态下舰船特种阀门可靠性评估方法[J].哈尔滨工程大学学报,2012,33(4):496-500,5.基金项目
校企合作研究基金资助项目(mmp10044). （mmp10044）
