| 工程圆管故障的振动诊断技术 |
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| 引用本文： | 刘瑞岩,刘永坚,钱朴. 工程圆管故障的振动诊断技术[J]. 国防科技大学学报, 1991, 0(3): 41-46 |
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| 作者姓名： | 刘瑞岩 刘永坚 钱朴 |
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| 作者单位： | 国防科技大学航天技术系(刘瑞岩，刘永坚)，国防科技大学航天技术系(钱朴) |
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| 摘 要： | 本文应用结构的敏感度分析法,以敏感区的频响函数作为观测特征量,建立了故障诊断的识别方程。利用Kalman 滤波迭代算法对某工程圆管进行了刚度型故障诊断的仿真计算和试验分析。结果表明振动诊断技术可用于工程结构故障的微机实时监控,具有精度较高,抗干扰能力较强的特点。
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| 关 键 词： | 故障诊断 状态监控 振动分析 最优滤波 工程圆管 |
| 收稿时间： | 1990-06-14 |
The Technique of Vibration Diagnosis for Engineering Tube Failures |
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| Liu Ruiyan,Liu Yongjian and Qian PU. The Technique of Vibration Diagnosis for Engineering Tube Failures[J]. Journal of National University of Defense Technology, 1991, 0(3): 41-46 |
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| Authors: | Liu Ruiyan Liu Yongjian Qian PU |
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| Affiliation: | Department of Space Technology |
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| Abstract: | This paper presents a new development of the technique of the identification equations of a failure diagnosis using frequency response function (FRF) of the sensitive areas as an observed characteristics quantity (QCQ). It is obtained from sensitivity analysis of the structure. The simualting calculation and experimental analysis of stiffness-type failure diagnosis for an engineering tube are made by Kalman filter iterative algoritm. The results show that the technique has greater accuracy and better antijam capability. |
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| Keywords: | Failure diagnosis condition monitoring vibration analysis optimal filtering engineering tube |
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