Paper Title:
An Analytical Study on the Spherical Spindle of an Ultra Precision Machine for Use in Nano Machining Technology
  Abstract

Air spindles in ultra precision machines produce rotational movements for the cutting tool or work piece. The common combination of a simple cylindrical rotor and stator is the design for most spindles. If the length of such a spindle is longer than usual, it will deviate from its stable situation and start vibrating during operation, especially in high rotational speeds. In order to overcome the vibration problem, one of possible solutions is the application of a spherical rotor and stator. The manufacturing and assembly limitations do not allow obeying the spherical shape exactly. Thus, the design has been committed according to a quasi-sphere. This form of the rotor will be more stable. The subsequent result of stability improvement will be less air pressure and power consumption. There are some specific characterizations of the spindle which must be calculated for the spherical case. For this purpose a computer model of the object was made. Then, the model was put under finite element study to find the best air pressure and air flow velocity condition.

  Info
Periodical
Defect and Diffusion Forum (Volumes 283-286)
Edited by
Andreas Öchsner, Graeme E. Murch and Ali Shokuhfar
Pages
171-176
DOI
10.4028/www.scientific.net/DDF.283-286.171
Citation
M. Vahdati, A. Shokuhfar, "An Analytical Study on the Spherical Spindle of an Ultra Precision Machine for Use in Nano Machining Technology", Defect and Diffusion Forum, Vols. 283-286, pp. 171-176, 2009
Online since
March 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: E.U. Ubeku, E.A. Ogujor
Abstract:This paper presents the use of a user-interactive MATLAB programme for the design and the parameter estimation of a three-phase induction...
126
Authors: Da Peng Cui, Ying Xue Yao, Dong Li Qin
Abstract:Balance precision of gyroscope rotor influences its performance directly. Aiming at the special gyroscope with a spherical cavity mentioned...
680
Authors: Na Na He, Hong Zhang
Chapter 2: Dynamics of Mechanisms and Systems
Abstract:In this paper the rotor dynamic characters of the bearing system in turbocharger are researched. The computing method of rotor dynamic is...
651
Authors: Shu Ye Ding, Fan Dong Meng
Chapter 4: Nuclear Energy,Hydrogen, Fuel Cell and Other New Energy
Abstract:The safe operation of canned motor in nuclear primary pump is very important for nuclear power station. Taken a 5500KW large canned motor of...
547