Three degree of freedom visualization experimental device of GMA oil film bearing

Xuemei YIN; Shuaicheng JI; Chao WU; Mingfei MA; Shaolin ZHANG

doi:10.13224/j.cnki.jasp.20200380

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Three degree of freedom visualization experimental device of GMA oil film bearing

Power Transimission | 更新时间：2025-04-07

- Three degree of freedom visualization experimental device of GMA oil film bearing
- Journal of Aerospace Power Vol. 36, Issue 8, Pages: 1749-1755(2021)
- 作者机构：
  
  1.郑州轻工业大学能源与动力工程学院，郑州 450002
  2.郑州轻工业大学机电工程学院，郑州 450002
  3.郑州大学机械与动力工程学院，郑州 450001
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.20200380
  CLC：
- 稿件说明：
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Xuemei YIN, Shuaicheng JI, Chao WU, et al. Three degree of freedom visualization experimental device of GMA oil film bearing[J]. Journal of Aerospace Power, 2021, 36(8): 1749-1755.
DOI：

Xuemei YIN, Shuaicheng JI, Chao WU, et al. Three degree of freedom visualization experimental device of GMA oil film bearing[J]. Journal of Aerospace Power, 2021, 36(8): 1749-1755. DOI： 10.13224/j.cnki.jasp.20200380.

摘要

给出了一种三自由度超磁致伸缩驱动器（GMA）油膜轴承可视化实验装置，介绍了它的组成、工作原理及调整方法。该实验装置利用涡轮蜗杆⁃丝杠传动机构调整实验主轴竖直高度，采用十字滑台、GMA、模具弹簧调整实验轴承在水平面的位置，方便改变实验轴承偏心率，并可利用GMA控制轴承座，减少转子系统振动。在实验台上，进行了椭圆轴承油膜的温度和压力测量以及轴心静平衡位置调整实验。结果表明：通过控制椭圆轴承短轴油膜来调整所支撑转子系统轴心静平衡位置的效果更明显。该实验台可以采集旋转速度在0~10 000 r/min之间的转子轴心轨迹、控制转子工频振动、观察油膜和气穴的形成与破裂实验，为GMA油膜轴承动态性能实验研究打下了一定基础。

Abstract

A three-degree-of-freedom visual experimental device for a controlled oil-film bearing with giant magnetostrictive actuators （GMA） was presented.The basic structure，working principle and adjustment method of the experimental device were introduced.A turbo-worm-screw drive mechanism was used to adjust the vertical height of the experimental spindle.And a cross sliding table，GMA and a mold spring were adopted to adjust the position of the experimental bearing on the horizontal plane.It was convenient to change the eccentricity of the experimental bearing and to control the bearing seat by using a GMA to reduce the vibration of the rotor.The pressure and temperature of the oil film of the elliptic bearing were measured on the adjusted experimental bench.Adjustment experiments of static balance position of the rotor supported by the elliptic bearing were also carried out.Results showed that it was obvious to change the static balance position of the rotor system by controlling the short axis oil film of the elliptical bearing.The experimental device can be used to conduct experiments such as axis trajectory acquisition，rotor power frequency vibration control，formation and fracture observation of oil film and cavitation with rotating speed between 0~10 000 r/min，laying a certain foundation for the subsequent experiments on the dynamic performance of GMA oil film bearing.

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