| 液体火箭发动机基于关系模型的故障诊断方法 |
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| 引用本文： | 吴建军,郑威. 液体火箭发动机基于关系模型的故障诊断方法[J]. 推进技术, 2004, 25(1): 1-3,10 |
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| 作者姓名： | 吴建军 郑威 |
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| 作者单位： | 国防科技大学,航天与材料工程学院,湖南,长沙,410073 |
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| 基金项目： | 国家自然科学基金资助项目 (50 2 760 68) |
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| 摘 要： | 提出了一种新的描述液体火箭发动机系统的定性模型，阐述了系统部件行为模型和结构模型的构建方法，给出了求解基于关系模型诊断问题的推理机制，建立了液体火箭发动机基于关系模型的故障诊断方法。以空间推进系统为研究对象进行了实例诊断分析，结果表明：该方法是一种有效的基于定性模型故障诊断方法。
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| 关 键 词： | 液体推进剂火箭发动机 故障诊断 模型 知识库 |
| 文章编号： | 1001-4055(2004)01-0001-04 |
Relation-model based fault diagnosis technique for liquid-propellant rocket engines |
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| WU Jian-jun and ZHENG Wei. Relation-model based fault diagnosis technique for liquid-propellant rocket engines[J]. Journal of Propulsion Technology, 2004, 25(1): 1-3,10 |
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| Authors: | WU Jian-jun and ZHENG Wei |
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| Affiliation: | Inst. of Aerospace and Material Engineering, National Univ. of Defence Technology, Changsha 410073, China;Inst. of Aerospace and Material Engineering, National Univ. of Defence Technology, Changsha 410073, China |
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| Abstract: | The relation-model for liquid-propellant rocket engines was proposed. Modeling for both setting up components' behavior models and system's structure model was described, respectively. Then, the reasoning mechanism for solving relation-model based on diagnosis problems was formulated and the relation-based fault diagnosis method was presented. By applying the diagnosis method proposed to the spacecraft propulsion systems, the results show that the relation-based fault diagnosis method is effective. |
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| Keywords: | Liquid propellant rocket engine Fault diagnosis Model Knowledge base |
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