Multi-layer housing structure with tuned layers using...

Details Multi-layer housing structure with tuned layers using... Multi-layer housing structure with tuned layers using...

2005-10-11

2005-10-11

Letscher, George J. (Department: 2653)

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06954328

ABSTRACT:
Apparatus and method for reducing generation of acoustic noise in a disc drive. A multi-layer disc drive housing structure includes a housing layer, a plurality of rigid damping layers and a corresponding plurality of interposed visco-elastic damping layers. Characteristics of the various layers are selected by evaluating hypothetical models each having first, second and third theoretical layers, at least one of which is a composite layer made up of multiple layers. Loss factor profiles are evaluated in relation to housing layer resonant frequency to provide an optimum multi-layer structure.

REFERENCES:
patent: 4418573 (1983-12-01), Madigosky et al.
patent: 4491888 (1985-01-01), Brown et al.
patent: 4562499 (1985-12-01), Mizoshita
patent: 4780777 (1988-10-01), Biermeier et al.
patent: 5021905 (1991-06-01), Sleger
patent: 5025336 (1991-06-01), Morehouse et al.
patent: 5148006 (1992-09-01), Driscoll
patent: 5214549 (1993-05-01), Baker et al.
patent: 5227982 (1993-07-01), Kipple et al.
patent: 5235482 (1993-08-01), Schmitz
patent: 5282100 (1994-01-01), Tacklind et al.
patent: 5483397 (1996-01-01), Gifford et al.
patent: 5510954 (1996-04-01), Wyler
patent: 5520052 (1996-05-01), Pechersky
patent: 5587855 (1996-12-01), Kim
patent: 5691037 (1997-11-01), McCutcheon et al.
patent: 5761184 (1998-06-01), Dauber et al.
patent: 5770133 (1998-06-01), Boutaghou
patent: 5781373 (1998-07-01), Larson et al.
patent: 5875067 (1999-02-01), Morris et al.
patent: 5877915 (1999-03-01), Ishida
patent: 5982580 (1999-11-01), Woldemar et al.
patent: 6090147 (2000-07-01), Bremner et al.
patent: 6177173 (2001-01-01), Nelson
patent: 6191510 (2001-02-01), Landin et al.
patent: 6251493 (2001-06-01), Johnson et al.
patent: 6288866 (2001-09-01), Butler et al.
patent: 6301967 (2001-10-01), Donskoy et al.
patent: 6529345 (2003-03-01), Butler et al.
patent: 6536555 (2003-03-01), Kelsic et al.
patent: 2001/0044023 (2001-11-01), Johnson et al.
Ing L. Cremer and M. Heckl;Structure-Borne Sound-Structural Vibrations and Sound Radiation at Audio Frequencies; 1973, 1988; pp. 195-199, 232, 243-261; Chapter III Damping; Springer-Verlad; Germany.

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