西安理工大学学报2018，Vol.34Issue(4)：395-400,6.DOI:10.19322/j.cnki.issn.1006-4710.2018.04.003
非均匀预紧载荷下轴承-轴系热特性的试验研究
Experimental investigation of thermal characteristics of rotor-bearing system under non-uniform preload
摘要
Abstract
Bearing preload plays a vital role in the performance of rotor-bearing system.In general, bearing will be applied with non-uniform preload due to the manufacturing and assembly error.A novel rotor-bearing setup, which includes the small piezoelectric sensor to measure the preloading force and the motorized spindle for driving, is developed to investigate the effect of non-uniform preload on the performance of rotor-bearing system.According to the performance of ball bearings, the experiments including different magnitudes and positions of forces are conducted.From the testing results, it can be concluded as follows:1.The temperature of out ring of bearing under uniform preload is lower than that under non-uniform preload while the moment increasing due to the non-uniform preload.2.Compared with non-uniform preload, the environment temperature and the type of heat dissipation show a greater impact on the temperature of loading bearing in the rotor-bearing system, the positions of bearing which close to the area of heat conduction keep the lowest temperature on the rotor-bearing system in the whole tests.These results illustrate the effect of non-uniform preload on the thermal characteristics of rotorbearing system and provide data for the theoretical research.关键词
轴承预紧/非均匀载荷/热特性/轴系性能Key words
bearing preload/non-uniform preload/thermal characteristics/the performance of rotor-bearing system分类
机械制造引用本文复制引用
吴文武,洪军,李旸,李小虎,张进华..非均匀预紧载荷下轴承-轴系热特性的试验研究[J].西安理工大学学报,2018,34(4):395-400,6.基金项目
国家自然科学基金资助项目(51575434,51406165) （51575434,51406165）
