| 基于随机加权仿真的火箭发动机可靠性评估 |
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| 引用本文： | 冯静,董超,刘琦,周经伦,张金槐. 基于随机加权仿真的火箭发动机可靠性评估[J]. 系统仿真学报, 2003, 15(11): 1603-1606 |
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| 作者姓名： | 冯静 董超 刘琦 周经伦 张金槐 |
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| 作者单位： | 1. 国防科技大学人文与管理学院,湖南长沙,410073
2. 电子工程学院数学教研室,安徽合肥,230037 |
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| 基金项目： | 总装备部年度课题资助项目(KZ01008) |
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| 摘 要： | 液体火箭发动机性能可靠性评估主要讨论其关键性能参数是否满足设计任务书规定的额定值及偏差范围是否符合要求。由于发动机参加飞行次数非常有限，传统评估方法得到的结果置信度不高。本文提出一种在Bayes评估框架下，利用随机加权仿真技术进行性能可靠性评估的新方法。文章的最后给出一个具体算例说明了该评估方法的应用。
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| 关 键 词： | 性能可靠性 随机加权法 验前信息 修正因子 置信下限 |
| 文章编号： | 1004-731X(2003)11-1603-04 |
| 修稿时间： | 2002-10-31 |
Performance Reliability Assessment for Liquid Rocket Engine Based on Random Weighting Simulation |
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| FENG Jing,DONG Chao,LIU Qi,ZHOU Jing-lun,ZHANG Jing-huai. Performance Reliability Assessment for Liquid Rocket Engine Based on Random Weighting Simulation[J]. Journal of System Simulation, 2003, 15(11): 1603-1606 |
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| Authors: | FENG Jing DONG Chao LIU Qi ZHOU Jing-lun ZHANG Jing-huai |
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| Affiliation: | FENG Jing1,DONG Chao2,LIU Qi1,ZHOU Jing-lun1,ZHANG Jing-huai1 |
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| Abstract: | The performance reliability assessment of liquid rocket engine mainly discusses whether the vital performance parameters and its warp satisfied the demands of the design documents. For the real flying data is very limited, this is a small sample problem. The confidence level of results achieved from traditional statistical method is not high. In this composition, a Bayes approach based on random weighting simulation method is proposed to solve this problem. In the end, an example is given to show how to use this method in engineering. |
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| Keywords: | performance reliability random weighting simulation prior information modification factor low value of confidence interval |
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