| 一种新型疲劳试验器的试验研究 |
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| 引用本文： | 徐志怀.一种新型疲劳试验器的试验研究[J].南京航空航天大学学报,1987(1). |
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| 作者姓名： | 徐志怀 |
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| 摘 要： | PYD-1型叶片振动疲劳试验器是根据电(磁)涡流原理研制的一种新型疲劳试验设备。其工作频带宽、高频特性好、系统中引进串联电容谐振方案,功率消耗明显下降。在疲劳试验技术方面开创了一种新的激振方法。 本文阐明了电(磁)涡流激振的工作原理、性能特点;叙述了磁路分析与结构设计、电容谐振方案、振幅自动控制与遥控监视等。最后,介绍了用该设备对发动机叶片进行的振动疲劳试验,效果良好。
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| 关 键 词： | 航空发动机 叶片振动 疲劳试验 试验设备 |
An Experimental Investigation of a New Type of Equipment for Fatigue Test |
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| Xu Zhihuai.An Experimental Investigation of a New Type of Equipment for Fatigue Test[J].Journal of Nanjing University of Aeronautics & Astronautics,1987(1). |
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| Authors: | Xu Zhihuai |
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| Abstract: | A new type of testing equipment, Model PYD-1 is a device for testing the blade fatigue, which is based on electro-magnetic eddy current technique.It has advantages of wide frequency band and good performance at high frequency. In this system a capacitor is used to generate series resonance, therefore the power consumption is greatly decreased. A new method of vibration exciting is developed in the technical area of structural fatigue tests.The principles, pertormance and characteristics of the electro-magnetic eddy current excitation are illustrated in this paper .Analysis of the magnetic circuit, design of the structure, scheme of the series resonance, automatic control of the amplitude and remote monitoring are described. Finally, the fatigue test of engine blades is introduced using this system, and it is shown that the test results are satisfactory. |
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| Keywords: | air engine blade vibration fatigue test testing equipment |
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