舰船科学技术
艦船科學技術
함선과학기술
SHIP SCIENCE AND TECHNOLOGY
2015年
4期
53-56
,共4页
船用离心泵%可靠性%强化寿命试验%序贯试验
船用離心泵%可靠性%彊化壽命試驗%序貫試驗
선용리심빙%가고성%강화수명시험%서관시험
marine centrifugal pump%reliability%strengthening life test%sequential test
针对船用离心泵可靠性试验需时过长，被试件多，难以满足工程实际需要的问题，本文提出船用离心泵可靠性强化试验与序贯寿命抽样试验相结合的试验方法。在对船用离心泵失效机理分析的基础上，拟定棕刚玉砂为强化因子对其进行可靠性强化试验；同时提出可靠性验证试验采用截尾序贯试验方案进行，并给出此方法的理论依据、失效判据，绘制了判决图表。
針對船用離心泵可靠性試驗需時過長，被試件多，難以滿足工程實際需要的問題，本文提齣船用離心泵可靠性彊化試驗與序貫壽命抽樣試驗相結閤的試驗方法。在對船用離心泵失效機理分析的基礎上，擬定棕剛玉砂為彊化因子對其進行可靠性彊化試驗；同時提齣可靠性驗證試驗採用截尾序貫試驗方案進行，併給齣此方法的理論依據、失效判據，繪製瞭判決圖錶。
침대선용리심빙가고성시험수시과장，피시건다，난이만족공정실제수요적문제，본문제출선용리심빙가고성강화시험여서관수명추양시험상결합적시험방법。재대선용리심빙실효궤리분석적기출상，의정종강옥사위강화인자대기진행가고성강화시험；동시제출가고성험증시험채용절미서관시험방안진행，병급출차방법적이론의거、실효판거，회제료판결도표。
In the reliability life test of marine centrifugal pump, testing time usually is very long and many elements need to be tested. In order to solve these problems, a new experimental method combined the sequential sampling and strengthening reliability test is presented. Through analyzing the failure mechanism of the pumps, abrasive working media was adopted as the accelerated factor of reliability to enhance testing while keep the failure mechanism unchanged. According to the failure characteristics and working conditions, a test plan of the pumps was proposed by adopting sequential sampling test. In the article, theoretical bases of the new testing method, failure criterion, drawing decision diagram and their application are given.
