北京航空航天大学学报2026，Vol.52Issue(1)：110-119,10.DOI:10.13700/j.bh.1001-5965.2023.0715
基于应变能理论的全陶瓷球轴承细观缺陷识别
Identification of mesoscopic fault of full ceramic ball bearings based on strain energy theory
摘要
Abstract
The traditional steel bearing outer ring dynamics model is unable to describe the issue of sub-millimeter or even millimeter-scale mesoscopic flaws inside the outer ring of complete ceramic ball bearings.Based on the strain energy theory,a dynamic model is established for the subsurface mesoscopic defects of the outer ring of full ceramic ball bearings,and the influence of different defect depths on the running state of the outer ring of full ceramic ball bearings is investigated at the scale of mesoscopic defects.Through simulation,it is confirmed that when a mesoscopic defect exists on the subsurface of the outer ring of the bearing.There is a corresponding characteristic frequency near the intermediate frequency of the frequency domain signal,and the degree of defect evolution is determined by the ratio of the maximum positive value of its empirical mode decomposition(EMD)third-order component amplitude to its corresponding peak value of the intermediate frequency.Finally,the effectiveness of the constructed model is verified through experiments.Finally,the validity of the proposed dynamics model and simulation results is verified by experiments.The established model makes it possible to determine the degree of defect evolution and if sub-surface mesoscopic defects are present in the outer rings of complete ceramic ball bearings.The established model provides a new idea for the defect diagnosis of full ceramic ball bearings and a theoretical reference for the safe and stable operation of full ceramic bearing rotor systems.关键词
全陶瓷球轴承/细观缺陷/动力学建模/应变能理论/经验模态分解Key words
full ceramic ball bearing/mesoscopic defects/dynamic modeling/strain energy theory/empirical mode decomposition分类
航空航天引用本文复制引用
白晓天,张赵南,石怀涛,张啸尘..基于应变能理论的全陶瓷球轴承细观缺陷识别[J].北京航空航天大学学报,2026,52(1):110-119,10.基金项目
国家自然科学基金(52275119,52075348,52005352) （52275119,52075348,52005352）
辽宁省教育厅基金(LJKZZ20220078) National Natural Science Foundation of China(52275119,52075348,52005352) （LJKZZ20220078）
Liaoning Provincial Department of Education Fund(LJKZZ20220078) （LJKZZ20220078）
