Quasi Dynamic Calculation of Local Stiffness of Angular Contact Ball Bearings

• 作 者: Zhen-Huan Ye Chuan-Wei Zhang Le Gu Li-Qin Wang De-Zhi Zheng
• 机 构: School of Mechatronics Engineering,Harbin Institute of Technology,University of California,San Diego
• 出 处: Journal of Harbin Institute of Technology
• 发表日期: 2013年03期
• 关键词: bearings stiffness radial simplified symmetric subsequently curvature coordinate

In order to describe the performance of thin wall bearing on rotor system more accurate,the simplified model of bearing local stiffness was proposed. The load distribution and local contact deformation in angular contact ball bearings were calculated using quasi dynamic calculation method. Based on the relationship of local load to contact deformation,the calculation model of local bearing stiffness was subsequently built to get radial and axial components of local stiffness. Effects of external loads on the local bearing stiffness were analyzed. The results showed that local stiffness in bearings is symmetric to the axis of radial load,and its value has a maximum on the symmetry axis along the radial load direction. External radial and axial load have different effects on local bearing stiffness.

In order to describe the performance of thin wall bearing on rotor system more accurate, the simplified model of bearing local stiffness was proposed. The load distribution and local contact deformation in angular contact ball bearings were calculated using quasi dynamic calculation method. Based on the relationship of local load to contact deformation, the calculation model of local bearing stiffness was built built to get radial and axial components of local stiffness. the axis of radial load, and its value has a maximum on the symmetry axis along the radial load direction. External radial and axial load have different effects on local bearing stiffness.