Storage life assessment for solid propellant based on generalized linear model
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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.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
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Key words:
- solid propellant /
- tensile strength /
- storage life /
- generalized linear model /
- location scale model
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[1] 张昊,庞爱民,彭松.固体推进剂贮存寿命非破坏性评估方法-老化特征参数监测法[J].固体火箭技术,2005,28(4):271-275.Zhang H,Pang A M,Peng S.Nondestructive assessment approaches to storage life of solid propellants(I)-aging characteristic parameter surveillance method[J].Journal of Solid Rocket Technology,2005,28(4):271-275(in Chinese). [2] 张仕念,易当详,宋亚男,等.固体推进剂多失效模式相关的贮存可靠性评估[J].固体火箭技术,2007,30(6):525-528.Zhang S N,Yi D X,Song Y N,et al.Evaluation on storage reliability of solid propellant based on correlative failure modes[J].Journal of Solid Rocket Technology,2007,30(6):525-528(in Chinese). [3] Fillerup J,Pritchard R.Service life prediction technology program,ADA397950[R].Edwards:Air Force Research Laboratory,1998. [4] 杨根,赵永俊,张炜,等.HTPB推进剂贮存期预估模型研究[J].固体火箭技术,2006,29(4):283-285.Yang G,Zhao Y J,Zhang W,et al.Investigation on prediction model for storage life of HTPB propellants[J].Journal of Solid Rocket Technology,2006,29(4):283-285(in Chinese). [5] 尤琦,赵宇,胡广平,等.基于时序模型的加速退化数据可靠性评估[J].系统工程理论与实践,2011,31(2):328-332.You Q,Zhao Y,Hu G P,et al.Reliability assessment using accelerated degradation data based on time series model[J].Systems Engineering Society of China,2011,31(2):328-332(in Chinese). [6] 马小兵,王晋忠,赵宇.基于伪寿命分布的退化数据可靠性评估方法[J].系统工程与电子技术,2011,33(1):228-232.Ma X B,Wang J Z,Zhao Y.Reliability assessment using constant-stress accelerated degradation data based on pseudo life distribution[J].Systems Engineering and Electronics,2011,33(1):228-232(in Chinese). [7] 尤琦,赵宇,马小兵.产品性能可靠性评估的时序分析方法[J].北京航空航天大学学报,2009,35(5):644-648.You Q,Zhao Y,Ma X B.Performance reliability assessment for products based on time series analysis[J].Journal of Beijing University of Aeronautics and Astronautics,2009,35(5):644-648(in Chinese). [8] Huang W,Duane L.An alternative degradation reliability modeling approach using maximum likelihood estimation[J].IEEE Transactions on Reliability,2005,54(2):310-317. [9] Sun Q,Zhou J L,Zhong Z,et al.Gauss-Poisson joint distribution model for degradation failure[J].IEEE Transactions on Plasma Sciences,2004,32(5):1864-1868. [10] 张昊,庞爱民,彭松.方坯药预测寿命与发动机推进剂药柱实际寿命差异研究[J].固体火箭技术,2005,28(1):53-56.Zhang H,Pang A M,Peng S.Investigation on the differences between predicted lifetime of propellant carton and actual lifetime of motor propellant grain[J].Journal of Solid Rocket Technology,2005,28(1):53-56(in Chinese). [11] 洪东跑,马小兵,赵宇.利用变环境数据的可靠性灵敏度分析[J].兵工学报,2011,32(3):341-347.Hong D P,Ma X B,Zhao Y.Reliability sensitivity analysis using variable environment test data[J].Acta Armamentarii,2011,32(3):341-347(in Chinese). [12] 洪东跑,马小兵,赵宇.利用变环境数据的Weibull分布可靠性综合评估[J].北京航空航天大学学报,2012,38(11):1487-1491.Hong D P,Ma X B,Zhao Y.Integrated reliability assessment for Weibull distribution using varied environment data[J].Journal of Beijing University of Aeronautics and Astronautics,2012,38(11):1485-1491(in Chinese). [13] Uusipaikka E.Confidence intervals in generalized regression models[M].London:Chapman & Hall/CRC,2009. [14] 洪东跑,马小兵,赵宇.基于比例风险模型的可靠性综合评估[J].系统工程与电子技术,2010,32(10):2132-2135.Hong D P,Ma X B,Zhao Y.Integrated reliability assessment based on proportional risk model[J].Systems Engineering and Electronics,2010,32(10):2132-2135(in Chinese). [15] Kalbfleisch J D,Prentice R L.The statistical analysis of failure time data[M].Hoboken:John Wiley & Sons,2002.
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