| 传感器对后支承机匣系统动力特性的影响 |
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| 引用本文： | 温卫东,陈武杰,田淑芳.传感器对后支承机匣系统动力特性的影响[J].航空动力学报,1987(4):364-366,373. |
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| 作者姓名： | 温卫东 陈武杰 田淑芳 |
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| 作者单位： | 南京航空学院
(温卫东，陈武杰)，南京航空学院(田淑芳) |
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| 摘 要： | 某发动机在工厂台架试车过程中,要求严格控制发动机振动量,用速度计监测整机振动水平。由于工厂实际条件限制,需改用加速度计作为测振传感器。结果发现原合格发动机的振动量,却大大超过规范要求。 发动机的振动水平及其转子动力学特性与其支承系统的动力特性密切相关。近年来,国内外都十分重视对支承系统动力特性的研究。本文在已有工作的基础上,着重考虑了
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| 收稿时间： | 2/1/1987 12:00:00 AM |
EFFECT OF TRANSDUCER MASS ON DYNAMIC CHARACTERISTICS OF A REAR BEARING-CASE SYSTEM |
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| Wen Weidong,Chen Wujie and Tian Shufang.EFFECT OF TRANSDUCER MASS ON DYNAMIC CHARACTERISTICS OF A REAR BEARING-CASE SYSTEM[J].Journal of Aerospace Power,1987(4):364-366,373. |
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| Authors: | Wen Weidong Chen Wujie and Tian Shufang |
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| Institution: | Nanjing Aeronautical Institute;Nanjing Aeronautical Institute;Nanjing Aeronautical Institute |
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| Abstract: | An equivalent method of resonant frequence is provided to determine the magnitude of the required extra mass when an acceleration transducer is applied to measuring the vibrationsof an engine instead of velocity transducer without changing the original technical specifications.The effect of the transducer mass on the dynamic characteristics of the rear bearing-case system is investigated.The experiments show that the first several orders of the resonant frequences and displacement mobility peak values vary to a great extent because of great difference between two transducer masses when the velocity transducer is replaced by the acceleration transducer in measuring the vibrations of the system. |
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