摘要
建立单跨、四圆盘结构的高速气体静压轴承-转子系统试验台,对系统的碰磨故障进行了试验研究。在试验过程中,呈现了轴向碰磨与径向碰磨,低频引起的碰磨与工频引起的碰磨等碰磨故障现象,通过分析系统振动信号的频谱特性、轴心运动轨迹、分岔图、伯德图及时间-频率-幅值三维谱图等给出了各种碰磨故障的典型特征,并分析了轴向碰磨与径向碰磨,低频引起的碰磨与工频引起的碰磨等碰磨故障之间的特征区别。为碰磨故障的识别与碰磨故障诊断系统的建立提供了一些试验依据。
The test bench for high-speed aerostatic bearing-rotor systems with single span and four disks structure was built, and the rub- impact faults of the systems were studied experimentally. The axial rub- impact and radial rub- impact at low frequency and working frequency were tested. Through the analyses of the frequency spectrum characteristics, shaft center kinetic trajectory, bifurcation diagram and time-frequency-amplitude waterfall diagrams, the typical features of all kinds of rub-impact faults were given. Meanwhile, the difference of the faults was analyzed. The work may provide a data base for rub-impact fault identification and the establishment of the diagnosis systems.
出处
《噪声与振动控制》
CSCD
2015年第2期180-183,216,共5页
Noise and Vibration Control
基金
国家科技支撑计划项目(2012BAA11B02)
中央高校基本科研业务费专项资金资助(13XS10)
关键词
振动与波
机械学
气体轴承转子
碰磨故障
故障诊断
轴心轨迹
vibration and wave
mechanics
aerostatic bearing-rotor system
rub-impact fault
fault diagnosis
axis center kinetic trajectory
