Study of dynamic characteristics about motorized spindle rotor-bearing system considering the effects of oil film stiffness

被引：0

作者：

Li, Song-Sheng ^{[1
]}

Yu, Feng ^{[1
]}

Shao, Juan ^{[1
]}

Huang, Xiao-Beng ^{[1
]}

Chen, Bin ^{[1
]}

机构：

[1] Shanghai Univ, Sch Mechatron Engn & Automat, Key Lab Mfg Automat & Robot, Shanghai 200072, Peoples R China

来源：

DESIGN, MANUFACTURING AND MECHATRONICS (ICDMM 2015) | 2016年

关键词：

Dynamic characteristics; motorized spindle rotor-bearing system; oil-film stiffness; elasto-hydrodynamic lubrication;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dynamic characteristic is the key factor that affects the stability of motorized spindle at high-speed. According to the effects of bearing lubrication condition on motorized spindle rotor-bearing system dynamic characteristics, considering contact stiffness and elasto-hydrodynamic oil-film stiffness between balls and ring raceways, based on finite element method, this paper established analysis model of motorized spindle rotor-bearing system dynamic performance. The experiment result indicates that comparing with the models without considering oil-film stiffness, bearing comprehensive supporting stiffness decreases, which makes the critical speed of rotor-bearing system decrease, and it shows that the adjustment of bearing axial pre-load has the function of changing critical speed and dynamic response.

引用

页码：1354 / 1366

页数：13

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