| 余度舵机系统的性能降级与可靠性分析 |
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| 引用本文： | 王少萍,崔明山,石健,康明.余度舵机系统的性能降级与可靠性分析[J].中国航空学报,2005,18(4):359-365. |
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| 作者姓名： | 王少萍 崔明山 石健 康明 |
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| 作者单位： | School of Automation Science and Electrical Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100083，China，School of Automation Science and Electrical Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100083，China，School of Automation Science and Electrical Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100083，China，School of Automation Science and Electrical Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100083，China |
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| 基金项目： | NationalNaturalScienceFoundationofChina(60371043)，BeijingNaturalScienceFoundation(4012009)，NationalDefenseFoundationofChina(51419020404HK0150)，ProgramforNewCenturyExcellentTalentsinUniversity(NCET). |
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| 摘 要： | 余度舵机是电传飞控系统的关键部件,其通道间存在着较严重的力纷争现象。在建立四余度舵机数学模型的基础上,研究了力均衡算法,对四余度舵机一次故障、二次故障情况下的性能降级和可靠性进行了仿真分析。仿真结果标明,优化的力均衡算法可以有效解决力纷争的问题,四余度舵机可以在一次故障、二次故障的情况下持续工作。采用动态故障树分析方法进行了四余度舵机可靠性分析,证明了其具有非常高的可靠性。
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| 关 键 词： | 控制系统仿真技术 余度舵机 性能降级 可靠性分析 |
| 收稿时间： | 12 4 2004 12:00AM |
| 修稿时间： | 06 16 2005 12:00AM |
Performance Degradation and Reliability Analysis for Redundant Actuation System |
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| WANG Shao-ping, CUI Ming-shan, SHI Jian, KANG Ming.Performance Degradation and Reliability Analysis for Redundant Actuation System[J].Chinese Journal of Aeronautics,2005,18(4):359-365. |
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| Authors: | WANG Shao-ping CUI Ming-shan SHI Jian KANG Ming |
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| Institution: | School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | Redundant actuator is the key component of Fly-By-Wire (FBW) system in which exists the inherent force fighting among different redundant channels at colligation point. This paper establishes the mathematical model of quad redundant actuator (QRA), investigates the force equalization algorithm and carries out the performance degradation simulation and reliability analysis under the first failure and the second failure. The results indicate that the optimal equalization algorithm can solve the force fighting effectively, and the QRA can operate at degradation performance continuously under the first failure and the second failure. With the dynamic fault tree analysis, this paper calculates the reliability based on the performance of QRA and proves that the redundant actuator has very high reliability and safety. |
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| Keywords: | control system simulation redundant actuator performance degradation reliability analysis |
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