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| 飞船降落伞系统的可靠性建模 | |
| 引用本文： | 王学,高普云,冯志刚,荣伟,郭奎. 飞船降落伞系统的可靠性建模[J]. 宇航学报, 2011, 32(7). DOI: 10.3873/j.issn.1000-1328.2011.07.031 |
| 作者姓名： | 王学 高普云 冯志刚 荣伟 郭奎 |
| 作者单位： | 1. 中国空气动力研究与发展中心低速所,绵阳,622662 2. 国防科技大学航天与材料工程学院,长沙,410073 3. 北京空间机电研究所,北京,100076 |
| 摘 要： | 飞船降落伞系统中设计有主伞包开关判别和速度判别两个主伞系状态监测装置,这使得飞船降落伞系统具有其自身特点.主伞包开关判别和速度判别装置各自具有两类任务可靠性,且它们各自的监测范围不同.采用冷贮备模型描述飞船降落伞系统可靠性时,需基于一定的假设,不能准确地描述飞船降落伞系统的可靠性.为此,在分析飞船降落伞系统自身特点和冷贮备模型局限性的基础上,采用事件树方法,建立了飞船降落伞系统的可靠性事件树和更为准确的可靠性数学模型.该模型更具一般性,能更准确地反映飞船降落伞系统的可靠性. |
| 关 键 词： | 降落伞系统 可靠性 事件树 监测装置 冷贮备模型 |
Reliability Modeling for Parachute System of Spacecraft |
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| WANG Xue,GAO Pu-yun,FENG Zhi-gang,RONG Wei,GUO Kui. Reliability Modeling for Parachute System of Spacecraft[J]. Journal of Astronautics, 2011, 32(7). DOI: 10.3873/j.issn.1000-1328.2011.07.031 | |
| Authors: | WANG Xue GAO Pu-yun FENG Zhi-gang RONG Wei GUO Kui |
| Affiliation: | WANG Xue1,GAO Pu-yun2,FENG Zhi-gang2,RONG Wei3,GUO Kui3(1.Low Speed Aerodynamics Institute of China Aerodynamic Research and Development Center,Mianyang 622662,China,2.College of Aerospace and Material Engineering,National University of Defense Technology,Changsha 410073,3.Beijing Institute of Space Mechanics & Electricity,Beijing 100076,China) |
| Abstract: | The parachute system of spacecraft is designed with two monitoring mechanisms for the main parachute system,the monitoring mechanism of main parachute package and the monitoring mechanism of velocity,which makes the system special.The two monitoring mechanisms each have two type of task reliability,and monitor different ranges.The cold standby model could not exactly reflect the reliability of the parachute system of spacecraft,because it contains some assumptions which may cause errors.Based on the analysi... |
| Keywords: | Parachute system Reliability Event tree method Monitoring mechanism Cold standby model |
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