基于广义线性模型的固体推进剂贮存寿命评估

洪东跑; 王英华; 管飞; 马小兵

doi:10.13700/j.bh.1001-5965.2014.0030

基于广义线性模型的固体推进剂贮存寿命评估

doi: 10.13700/j.bh.1001-5965.2014.0030

1.
中国运载火箭技术研究院, 北京 100076
2. 北京航空航天大学可靠性与系统工程学院, 北京 100191

详细信息

通讯作者:
洪东跑(1983-),男,浙江温州人,高级工程师,hloving@163.com,主要研究方向为可靠性工程.

中图分类号: V435;TB114.3
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- 被引次数: 0
出版历程
- 收稿日期: 2014-01-15
- 网络出版日期: 2015-01-20

Storage life assessment for solid propellant based on generalized linear model

1.
China Academy of Launch Vehicle Technology, Beijing 100076, China
2. School of Reliability and Systems Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 研究了固体推进剂在贮存过程中性能退化对贮存寿命与可靠性的影响,提出了一种基于广义线性模型的固体推进剂贮存寿命与可靠性评估方法.首先结合固体推进剂退化数据的特点,利用位置刻度模型来描述固体推进剂抗拉强度与贮存时间的关系,建立了固体推进剂的贮存寿命模型.然后利用广义线性模型,给出了贮存寿命模型系数的极大似然估计.根据极大似然估计的渐近正态性,利用Fisher信息矩阵,给出了贮存寿命与可靠度近似置信下限.结合算例表明该方法综合利用固体推进剂在不同贮存时间下的性能数据,改善了固体推进剂贮存寿命与可靠性评估精度.
- 固体推进剂 /
- 抗拉强度 /
- 贮存寿命 /
- 广义线性模型 /
- 位置刻度模型
Abstract: To describe the influence of performance degradation on storage life and reliability for solid propellant, a method of storage life and reliability assessment based on generalized linear model was proposed. According to the characteristic of solid propellant degradation data, the local scale model was introduced to relate the solid propellant tensile strength to storage time, and the storage life and reliability model for solid propellant was established. The maximum likelihood estimations of the model coefficients were obtained with the generalized linear model for Poisson distribution. Furthermore, the approximated confidence interval for the reliability function was obtained with Fisher information matrix according to the normal law. The instance analysis shows that the performance data under varied storage time was used synthetically to enlarge the sample size and increase the information for storage reliability assessment. Thus, the storage life and reliability assessment precision was improved
- solid propellant /
- tensile strength /
- storage life /
- generalized linear model /
- location scale model

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参考文献(15)

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