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김기훈 ( Ki Hoon Kim ),손석호 ( Suk Ho Son ),박경수 ( Kyoung Su Park ),윤상준 ( Sang Joon Yoon ),박노철 ( No Cheol Park ),양현석 ( Hyun Seok Yang ),최동훈 ( Dong Hoon Choi ),박영필 ( Young Pil Park ) 정보저장시스템학회 2005 추계학술대회논문집 Vol.2005 No.-
Load/Unload(L/UL) technology includes the benefits, that is, increased areal density, reduced power consumption and improved shock resistance contrary to contact-start-stop(CSS). It has been widely used in portable hard disk drive and will become the key technology for developing the small form factor hard disk drive. The main object ofLIUL is no slider-disk contact or no media damage. For realizing those, we must consider many design parameters in LlUL system. In this paper, we focus on lift-off force. The "lift-off`` force, defined as the minimum air bearing force, is another very important indicator of unloading performance. A large amplitude of lift-off force increases the ramp force, the unloading time, the slider oscillation and contact-possibility. To minimize "lift-off`` force we optimizes the slider and suspension using the integrated optimization frame, which automatically integrates the analysis with the optimization and effectively implements the repetitive works between them. In particular, this study is carried out the optimal design considering the process of modes tracking through the entire optimization processes. As a result, we yield the equation which can easily find a lift-off force and structural optimization for suspension.
김기훈(Kim, Ki-Hoon),이용현(Lee, Yong-Hyun),김석환(Kim, Seok-Wan),이상직(Lee, Sang-Jic),박노철(Park, No-Cheol),박영필(Park, Young-Pil),박경수(Park, Kyoung-Su) 한국소음진동공학회 2010 한국소음진동공학회 논문집 Vol.20 No.3
This paper presents the analysis of pitch static attitude(PSA) in thermally assisted magnetic recording(TAMR) suspension. The TAMR suspension using an optical fiber has high stiffness such as vertical, pitch and roll. Therefore, P-torque is greatly increased by the optical fiber. Also, flying height(FH) of the slider with TAMR suspension can be largely changed by PSA. In this paper, we focus on the FH by PSA of TAMR suspension. The FH is investigated using various PSA and proper PSA is proposed.