| 摘要: |
| 针对液体火箭发动机,给出了检验天地环境下失效机理是否相同的统计方法,基于这个前提,推导了天地环境因子的极大似然估计,并用数值例说明了这些方法。 |
| 关键词: 液体推进剂火箭发动机 失效机理 寿命预测 Weibull分布 |
| DOI： |
| 分类号:V434 |
| 基金项目: |
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| ENVIRONMENTAL FACTOR OF WEIBULL DISTRIBUTION FOR LIQUID ROCKET ENGINE FAILURE |
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Beijing Iust. of Structure and Environment, Beijing, 100076
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| Abstract: |
| A statistical method of constant failure mechanism for liquid rocket engines in groundand flight test environments is presented. A maximum likelihood estimate of flight environmentalfactor is derived. And these methods are illustrated with a numerical example. |
| Key words: Liquid propellant rocket engine Failure mechanism Life prediction Weibulldistribution |
