Comparison of Bearings --- For the Bearing Choosing of High-speed Spindle Design

نویسنده

  • Xiaofan Xie
چکیده

There are many types of bearings available, each used for different purposes and different conditions. Two major types of bearings are contact bearings and noncontact bearings. By considering the ball material, I separate the contact bearings to steel bearings and ceramic ball bearings. On the other hand, there are bearings that can run without any contact between the sliding surfaces in the bearing. These noncontact bearings are hydrostatic/hydrodynamic bearings, air bearings, and magnetic bearings.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Effect of Damping and Stiffness of Bearing on the Natural Frequencies of Rotor-bearing System

In this paper, the effectiveness of stiffness and damping of bearing is investigated on the natural frequencies of the rotor-bearing system. The rotor-bearing system consists of a shaft, two bearings and a disk between two bearings. Parallel spring-damper in horizental and vertical directions is considered for modeling the stiffness and damping of bearings. The gyroscopic effect is also conside...

متن کامل

H∞ Robust Controller Design and Experimental Analysis of Active Magnetic Bearings with Flexible Rotor System

H∞ controller for active magnetic bearings (AMBs) with flexible rotor system was designed in this paper. The motion equations of AMBs and flexible rotor system are built based on finite element methods (FEM). Weighting function matrices of H∞ controller for AMBs are studied for both the sensitivity and the complementary sensitivity of H∞ control theory. The simulation shows that the H∞ control ...

متن کامل

Vibration in a Cracked Machine Tool Spindle with Magnetic Bearings

Due to manufacturing flaws or cyclic loading, cracks frequently appear in a rotating spindle system. These cracks markedly affect the dynamic characteristics in higher modes of the rotating machinery. For faster rotational speeds, especially for super-high-speed cutting, a spindle with magnetic bearings is necessary. However, most investigations into spindle system dynamic characteristics have ...

متن کامل

Chatter Suppression in a High Speed Magnetic Spindle by Adding Damping

Magnetic bearings are used in several applications, but they didn’t succeed in the machine tool industry, due basically to their low damping, with its associated low chatter free cutting capacity. This work shows the development of a high speed milling spindle supported on magnetic bearings with high chatter resistance. That is achieved by using control strategies which add damping to the beari...

متن کامل

Control of a High Speed Machining Spindle via μ-Synthesis

Due to high surface speed and active control capabilities, active magnetic bearings hold great promise for high speed machining spindles. Herein, the control problem posed by this application is examined and the development of an advanced prototype is reviewed. A μ synthesis framework is proposed for this problem and it is shown that the minimization of the susceptibility to machining chatter m...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003