摘要
通过对浮环减薄前后实验结果的对比分析,研究了浮环厚度变化对浮环轴承涡动及稳定性的影响,并给出了三维谱图、涡动比与转速图、典型分岔图。结果表明,浮环轴承浮环减薄引起油膜涡动力的变化,在升速过程中,减薄前的浮环轴承稳定性要好;在高速稳态运行过程中,减薄前后浮环轴承稳定性差别不大;在降速过程中,减薄前的浮环轴承稳定性要差。浮环内、外油膜半速涡动现象的涡动比分别接近于0.5与0.3。
Based on two experiments on floating ring bearing with different floating ring thickness, the effect of variation of thickness of floating ring on whirl and stability was studied. Frequency coupling three-dimensional spectrum, whorl ratio ＆ rotate speed chart and typical bifurcation were presented. The results show that the variance of floating ring transformation thickness causes the changes in the force of oil whirl. In the process of speed up, the stability of thick floating bearing is better than that of thin one ; in the process of high speed steady-state, the stability is similar; in the process of deceleration, the stability of thick floating bearing is worse than that of thin one. The experiment shows that the whirl ratio of outer and inner oil film in floating ring bearings approaches respectively 0.5 and 0.3 in squeezing vibration.
出处
《润滑与密封》
CAS
CSCD
北大核心
2009年第1期67-70,79,共5页
Lubrication Engineering
关键词
浮环轴承
稳定性
浮环厚度
floating ring bearing
stability
floating ring thickness
