CAJ | 학술논문

针对传统拟静力学分析方法未考虑轴承套圈热变形、离心力变形和弹流润滑作用引起轴承内部沟道曲率中心与滚动体中心几何位置关系的变化，难以准确反映轴承动刚度不足的现状，建立了计入套圈变形和弹流润滑影响的轴承拟静力学修正模型。采用所建立的模型研究了轴承不同工作转速和预紧力条件下轴承热变形、离心力变形和润滑油膜对动刚度的影响规律，通过与 Gupta 等典型算例及实验的对比验证，证实了所建立模型及分析结果的有效性。
침대전통의정역학분석방법미고필축승투권열변형、리심력변형화탄류윤활작용인기축승내부구도곡솔중심여곤동체중심궤하위치관계적변화，난이준학반영축승동강도불족적현상，건립료계입투권변형화탄류윤활영향적축승의정역학수정모형。채용소건립적모형연구료축승불동공작전속화예긴력조건하축승열변형、리심력변형화윤활유막대동강도적영향규률，통과여 Gupta 등전형산례급실험적대비험증，증실료소건립모형급분석결과적유효성。
Aiming at the shortage of traditional quasi-static analytical method which did not consid-er the changes in geometrical positions of bearing inner raceway curvature center and the rolling body center caused by bearing thermal deformation,the centrifugal force deformation and the elastohydro-dynamic lubrication effect,a bearing quasi-static modified model was established considering the effects of ferrule deformation and elastohydrodynamic lubrication.The effects of thermal deformation, the centrifugal force deformation and the lubricating oil film on bearing dynamic stiffness were studied by established model under conditions of different rotational speeds and bearing preloads.The validity of the established model was verified by comparison with the Gupta typical examples and experi-ments.