电器与能效管理技术
電器與能效管理技術
전기여능효관리기술
Low Voltage Apparatus
2015年
11期
12-16,36
,共6页
董宝旭%王淑娟%孟彦辰%翟国富
董寶旭%王淑娟%孟彥辰%翟國富
동보욱%왕숙연%맹언신%적국부
航天继电器%Wiener过程%可靠性评估%退化数据
航天繼電器%Wiener過程%可靠性評估%退化數據
항천계전기%Wiener과정%가고성평고%퇴화수거
aerospace relay%Wiener process%reliability assessment%degradation data
提出了一种利用Wiener过程进行航天继电器可靠性评估的方法。从失效物理的角度判定退化数据是否符合Wiener过程，根据随机过程理论建立了失效概率、失效概率密度以及可靠度的退化模型，并利用极大似然理论对模型中的未知参量进行似然估计，实现可靠性评估。最后对某型号航天继电器进行可靠性寿命试验，验证了所提方法的合理性与有效性。
提齣瞭一種利用Wiener過程進行航天繼電器可靠性評估的方法。從失效物理的角度判定退化數據是否符閤Wiener過程，根據隨機過程理論建立瞭失效概率、失效概率密度以及可靠度的退化模型，併利用極大似然理論對模型中的未知參量進行似然估計，實現可靠性評估。最後對某型號航天繼電器進行可靠性壽命試驗，驗證瞭所提方法的閤理性與有效性。
제출료일충이용Wiener과정진행항천계전기가고성평고적방법。종실효물리적각도판정퇴화수거시부부합Wiener과정，근거수궤과정이론건립료실효개솔、실효개솔밀도이급가고도적퇴화모형，병이용겁대사연이론대모형중적미지삼량진행사연고계，실현가고성평고。최후대모형호항천계전기진행가고성수명시험，험증료소제방법적합이성여유효성。
Aerospace relay is characterized by small sample,long life and high price.The traditional reliability assessment method based on lifetime data is difficult to apply.Based on the large amount of information of degradation parameters during the life test,a new reliability assessment method based on Wiener process was proposed.Firstly,failure physical mode is used to determine whether the degradation data is fit for Wiener process. Then,according to the theory of stochastic processes,the model of cumulative distribution function,probability density function and reliability is built.And the maximum likelihood theory is used to estimate unknown parameters of the model.Finally,the reliability life test of a certain type aerospace relay was carried out,and the degradation process data was measured.The degradation data is used to assess the reliability and the method is proved to be reasonable and effectual.
