失效分析与预防
失效分析與預防
실효분석여예방
FAILURE ANALYSIS AND PREVENTION
2014年
1期
58-60
,共3页
卢明章%李云峰%杨志刚%赵海军
盧明章%李雲峰%楊誌剛%趙海軍
로명장%리운봉%양지강%조해군
长期贮存装备%可靠性估计%测试数据%失效
長期貯存裝備%可靠性估計%測試數據%失效
장기저존장비%가고성고계%측시수거%실효
long-term storage equipment%reliability assessment%test data%failure
针对长期贮存装备可靠性评估问题,提出了一种利用定期测试数据进行评估的方法。该方法基于有替换定时间隔测试试验模式进行设计,即将装备按其性能指标分解为具有串联关系的多个独立部件,每个部件对应一个指标集,则对装备进行的定期测试可视为同时对装备多个部件进行的定期测试;利用有替换定时间隔测试试验中的样品失效似然函数对装备每个部件可靠性进行评估,进而实现装备可靠性评估。装备定期测试数据真实反映了装备组成部件性能状况变化过程,利用该数据对装备可靠性进行评估,评估结果具有一定的可信性。
針對長期貯存裝備可靠性評估問題,提齣瞭一種利用定期測試數據進行評估的方法。該方法基于有替換定時間隔測試試驗模式進行設計,即將裝備按其性能指標分解為具有串聯關繫的多箇獨立部件,每箇部件對應一箇指標集,則對裝備進行的定期測試可視為同時對裝備多箇部件進行的定期測試;利用有替換定時間隔測試試驗中的樣品失效似然函數對裝備每箇部件可靠性進行評估,進而實現裝備可靠性評估。裝備定期測試數據真實反映瞭裝備組成部件性能狀況變化過程,利用該數據對裝備可靠性進行評估,評估結果具有一定的可信性。
침대장기저존장비가고성평고문제,제출료일충이용정기측시수거진행평고적방법。해방법기우유체환정시간격측시시험모식진행설계,즉장장비안기성능지표분해위구유천련관계적다개독립부건,매개부건대응일개지표집,칙대장비진행적정기측시가시위동시대장비다개부건진행적정기측시;이용유체환정시간격측시시험중적양품실효사연함수대장비매개부건가고성진행평고,진이실현장비가고성평고。장비정기측시수거진실반영료장비조성부건성능상황변화과정,이용해수거대장비가고성진행평고,평고결과구유일정적가신성。
For the problem of long-term storage equipment reliability evaluation, the paper puts forward an assessment method using regular test data. The method is designed based on a replacement timing interval test pattern. In this method, according to the performance index, the equipment is decomposed into multiple independent serially related components. Firstly, each component is corresponding to a set of indicators, the equipment regularly tested can be regarded as components regular tested simultaneously. Secondly, each component reliability is evaluated using the test sample failure likelihood function, which is created based on replacement timing interval test, and then the equipment reliability evaluation is completed. Equipment regular test data reflect the performance changing process of every component of equipment, the reliability evaluation result using the data has certain credibility.