《机床与液压》 Hydromechatronics Engineering

文章详情

稿件标题: Experimental Research on Stability of High-speed Aerostatic Bearing-Rotor System
稿件作者: MA Wenqi, HUANG Xin, LIU Haiyan
关键字词: aerostatic bearing, secondary controlling supply pressure,critical speed,stability
文章摘要: In order to overcome the problem that the aerostatic bearing-rotor system vibrates severely near the critical speed region, a large number of experimental studies about the effects of supply pressure on stability of high-speed aerostatic bearing-rotor system were carried out. In this paper, with turbine driven and the control of the electrical proportional valve, vibration of this system was tested and analyzed on various working conditions. The results demonstrate that the critical speed is increased with the increase of the bearing supply pressure. However, the change of the vibration amplitude is opposite, which is reduced with the increase of the bearing supply pressure. The method of secondary controlling the supply pressure can sufficiently inhibit the vibration amplitude of the critical speed region within a certain range, and the system stability can be corresponding improved.
收录刊物: 2012.24
稿件基金: Sponsored by National Natural Science Foundation of China(51075048, 51105047, 51175053)
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