Effects of rolling friction on ball positioning for an automatic ball balancer

T. C. Chan, C. K. Sung*, Chang-Po Chao, Y. M. Hung

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a theoretical and experimental study on the effects of rolling friction between balls and the racer on ball positioning for an automatic ball balancer (ABB). The performance of an ABB, which is characterized by residual vibration of the rotor, relies heavily on balls' positions. However, the magnitude of rolling friction determines the ball position of the balancing system, which in turn affects the performance of the ABB. In this study, a set of ball balancers are fabricated including ceramic balls and the associated PTFE and ceramic ball races for the purpose of investigating the validity of the mathematical model of the rolling friction. The driving-force equation associated with the dynamic equations of motion of the balls is developed to determine the ball positions as well as the performance of the balancing system. Two sets of experimental apparatus are constructed. One is aimed to verify the mathematical model of the rolling friction of the ball balancer. The other applies an optical-disc drive system together with a high-speed camera to record the ball positions and verify the results obtained from computer simulation.

Original languageEnglish
Title of host publicationASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2009
Pages299-306
Number of pages8
EditionPARTS A AND B
DOIs
StatePublished - 1 Dec 2009
EventASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2009 - San Diego, CA, United States
Duration: 30 Aug 20092 Sep 2009

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
NumberPARTS A AND B
Volume1

Conference

ConferenceASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE2009
CountryUnited States
CitySan Diego, CA
Period30/08/092/09/09

Keywords

  • Automatic ball balancer
  • Ball position
  • Residual vibration
  • Rolling friction

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