Dynamic behavior of all-ceramic spindle-bearing unit with preload

被引：1
|
作者：
Li, Songhua [1 ]
Li, Xue [1 ]
Feng, Minghao [1 ]
Wu, Yuhou [1 ]
Jin, Xiaolin [1 ]
机构：
[1] Shenyang Jianzhu Univ, Sch Traff & Mech Engn, Shenyang 110168, Liaoning, Peoples R China
来源：
MACHINE DESIGN AND MANUFACTURING ENGINEERING II, PTS 1 AND 2 | 2013年 / 365-366卷
关键词：
Ceramic motorized spindle; All-ceramic bearing; Preload; Dynamic characteristic;
D O I：
10.4028/www.scientific.net/AMM.365-366.314
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Because of the extraordinary physical properties of engineering ceramics such as high hardness, low thermal expansion, light weight and abrasion resistant, it accommodates very well the high-speed and precision requirements of spindle-bearing unit. In order to prove the superior dynamic characteristic of the all-ceramic spindle-bearing unit because of the application of engineering ceramics in shaft and bearing of spindle system, the natural frequency and modes of the all-ceramic spindle-bearing unit were analyzed. In this study, spindle-bearing model was built and analyzed by the Finite Element Method (FEM) and Hertz theory, comprehensively considering both of the stiffness of bearing and the effect of preload, which was different from the traditional spindle analysis model. The research results show that all-ceramic spindle-bearing unit has higher natural frequency and better dynamic characteristics compare of traditional steel spindle-bearing unit.
引用
收藏
页码：314 / 317
页数：4
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