国外文献 > 1.轴承 > 2. 轴承类型与部件 > 滑动轴承
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| 标 题： |
A dynamic response test rig of a full-scale rotor-journal bearing system
全尺寸转子-轴瓦轴承系统的动态响应试验台 |
| 作 者： |
Li, Qiang
Zhang, Shuo
Wang, Yujun
Xu, Weiwei
Wang, Zhenbo |
| 关键词： |
Test rig [测试台]
rotor dynamics [ 转子动力学]
journal bearings [ 滚动轴承]
dynamic response [ 动态响应]
stability analysis [ 稳定性分析] |
| 出版年： |
2019 |
| 期刊名： |
Proceedings of the Institution of Mechanical Engineers, Part J. Journal of engineering tribology
机械工程师学会会刊，J部分。工程摩擦学杂志 |
| 年卷期： |
2019, vol.233, no.4 |
| 摘 要： |
A design strategy of a test rig for the dynamic behavior of a rotor supported by two full-scale journal bearings was proposed. A special part, called "intermediate", was set up to allow the convenient changing of the bearing structure. An electromagnetic exciter was used to obtain the natural frequency, and software running on the Microsoft Visual C++6.0 operating platform was programmed for signal acquisition and analysis. Then, the test rig was constructed. The field dynamic balance and natural frequency testing were carried out. The journal orbits and frequency spectrums were used to measure the dynamic response of different structure full-scale journal bearings. The experimental results showed that an acceptable balance effect was achieved after the field dynamic balance. The natural frequency of the rig agreed with the numerical results. Stability was improved through changing the bearing structure. This revealed that this rig can effectively test the dynamic behavior of a rotor supported by a full-scale journal bearing system, which is critical to the design of journal bearings.
提出了一种用于测试由两个全尺寸轴承支撑的转子动态特性的试验台设计策略。为便于更换轴承结构，特别设置了一个称为“中间段”的部件。采用电磁激励器获取固有频率，并在微软Visual C++6.0操作系统平台上编写软件进行信号采集与分析。随后搭建了试验台，进行了场态动态平衡和固有频率测试。利用轴承轨道和频率谱测量不同结构全尺寸轴承的动态响应。实验结果表明，经过场态动态平衡后可获得良好的平衡效果，试验台的固有频率与数值计算结果一致。通过改变轴承结构，系统稳定性得到提升。这表明该试验台能够有效测试由全尺寸轴承系统支撑的转子的动态特性，对轴承的设计具有重要意义。 |
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