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28 June 1999Finite element analysis of structural resonance of actuator in optical pickup head
Vibration analysis is an integral part of the design process for precise components, especially for higher density optical disk drives (e.g. DVD ROM/RAM). The designer often encounters challenges arising due to undesirable vibration modes in the components. The demands for precise track accessing and focusing are of importance in higher density optical disk drives. However, structural resonant vibration of mechanical components in the optical pickup head limits the tracking and focusing servo performances. Such tighter design specifications require the designer to have in-depth understanding of how structured resonance of the actuator in the optical pickup head responds to its tracking or focusing mechanism.
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J. P. Yang, Gaoqiang Yuan, Z. J. Liu, Bao Xi Xu, Min Yu Liu, Yue Chuan Lu, Yong Hong Wang, Tow Chong Chong, "Finite element analysis of structural resonance of actuator in optical pickup head," Proc. SPIE 3864, Joint International Symposium on Optical Memory and Optical Data Storage 1999, 38642N (28 June 1999);