NDLI: Dynamics of a HDD spindle system due to the change of FDBs

Content Provider	IEEE Xplore Digital Library
Author	Jang, G.H. Park, K.Y.
Copyright Year	2009
Description	Author affiliation: PREM, Hanyang University, Seoul, 133-791, Korea (Jang, G.H.; Park, K.Y.)
Abstract	This research investigates the effect of FDBs on the dynamics of a HDD spindle system. Flying height of the HDD spindle system is determined by using the static analysis of the FDBs, and the stiffness and damping coefficients are calculated by using the dynamic analysis of the FDBs. Free vibration characteristics and shock response of the HDD spindle system are analyzed by using the finite element method and the mode superposition method. Experimental modal test is also performed to verify the accuracy of the proposed method. This research shows that the stiffness coefficients of journal bearing mostly affect the rocking frequencies because their magnitudes are within the range of the stiffness of supporting structure. It also shows that the damping coefficients of thrust bearing mostly affect the axial frequency because the stiffness of thrust bearing is much smaller that that of supporting structure.
Starting Page	1
Ending Page	2
File Size	870410
Page Count	2
File Format	PDF
ISBN	9789810821913
DOI	10.1109/APMRC.2009.4925396
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-01-14
Publisher Place	Singapore
Access Restriction	Subscribed
Subject Keyword	Damping Frequency Finite element methods Fluid dynamics Vibrations Spinning Electric shock Testing Performance evaluation Spirals Mode superposition method Fluid dynamic bearing Finite element method
Content Type	Text
Resource Type	Article

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