This study is devoted to evaluate the performance of an automatic ball-type balance system (ABB) installed in optical disk drives (ODD) with consideration of the rolling friction between the balancing balls and the ball-containing race of the ABB. Researches have been conducted to study the performance of the ABB by investigating the nonlinear dynamics of the system; however, the rolling friction model adopted was a simple stick-slip type, which does not reflect the true contact dynamics between rolling balls and their races, leading to an inaccuracy in predicting ABB performance. In this study, a complete dynamic model of the ABB including a detailed rolling friction model based on contact mechanics is established. The method of multiple scales is then applied to formulate a scaled model to find all possible steady-state ball positions and analyze stabilities. It is found that possible steady-state residing positions of the ball inside the race are multiple and form continuous ranges. Numerical simulations and experiments are conducted to verify the validness of the theoretical findings. The obtained results are used to predict the level of residual vibration, with which the guidelines on dimension design and material choices of the ABB are distilled to achieve desired performance.
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ASME/STLE 2004 International Joint Tribology Conference
October 24–27, 2004
Long Beach, California, USA
Conference Sponsors:
- Tribology Division
ISBN:
0-7918-4181-2
PROCEEDINGS PAPER
Effects of Rolling Friction of the Balancing Balls on the Automatic Ball Balancer for Optical Disk Drives Available to Purchase
Paul C.-P. Chao,
Paul C.-P. Chao
Chung-Yuan Christian University, Chung-Li, Taiwan
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Chi-Wei Chiu,
Chi-Wei Chiu
Chung-Yuan Christian University, Chung-Li, Taiwan
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Cheng-Kuo Sung,
Cheng-Kuo Sung
National Tsing-Hua University, Hsinchu, Taiwan
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Hui-Chung Leu
Hui-Chung Leu
National Tsing-Hua University, Hsinchu, Taiwan
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Paul C.-P. Chao
Chung-Yuan Christian University, Chung-Li, Taiwan
Chi-Wei Chiu
Chung-Yuan Christian University, Chung-Li, Taiwan
Cheng-Kuo Sung
National Tsing-Hua University, Hsinchu, Taiwan
Hui-Chung Leu
National Tsing-Hua University, Hsinchu, Taiwan
Paper No:
TRIB2004-64275, pp. 795-806; 12 pages
Published Online:
December 22, 2008
Citation
Chao, PC, Chiu, C, Sung, C, & Leu, H. "Effects of Rolling Friction of the Balancing Balls on the Automatic Ball Balancer for Optical Disk Drives." Proceedings of the ASME/STLE 2004 International Joint Tribology Conference. ASME/STLE 2004 International Joint Tribology Conference, Parts A and B. Long Beach, California, USA. October 24–27, 2004. pp. 795-806. ASME. https://doi.org/10.1115/TRIB2004-64275
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