An Experimental Model of Sled System in an Optical Disk Drive.

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  • Han Jinsong
    Data Storage Institute, DSI Building, 5 Engineering Drive 1, (Off Kent Ridge Crescent, NUS), Singapore 117608
  • Hock Kai Meng
    SONY Precision Engineering Center (Singapore), 52 Tuas Avenue 9, Singapore 639193
  • Li Wenhua
    SONY Precision Engineering Center (Singapore), 52 Tuas Avenue 9, Singapore 639193
  • Chong Tow Chong
    Data Storage Institute, DSI Building, 5 Engineering Drive 1, (Off Kent Ridge Crescent, NUS), Singapore 117608
  • Shintani Kenji
    SONY Precision Engineering Center (Singapore), 52 Tuas Avenue 9, Singapore 639193
  • Leong Tong Kok
    SONY Precision Engineering Center (Singapore), 52 Tuas Avenue 9, Singapore 639193
  • Rayaraj Raymond
    Data Storage Institute, DSI Building, 5 Engineering Drive 1, (Off Kent Ridge Crescent, NUS), Singapore 117608

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  • Experimental Model of Sled System in an Optical Disk Drive

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Comprehensive experiments and analysis were conducted on SONY CD-ROM drives to derive a model of the sled system, with an emphasis on dynamic analysis of sled friction. Our study featured a novel method of friction analysis, in which all the measurements were conducted in transient period and all the calculations were transferred from the time domain to the velocity domain, and a new concept of elastic effect in sled systems, which gave a reasonable explanation of the oscillatory phenomenon in sled movement. The simulation results based on the derived model agreed well with the experimental data and repeated comparisons revealed the model's reliability. This confirmed the model's practicability in developing high-performance sled servos and track jump controllers.

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