Browse Prior Art Database

Vibration Damping in Direct Access Storage Devices with Constrained Layered Tape Wrap

IP.com Disclosure Number: IPCOM000106432D
Original Publication Date: 1993-Nov-01
Included in the Prior Art Database: 2005-Mar-21
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Nagarajan, S: AUTHOR [+2]

Abstract

A method for reducing the adverse effects of vibration on the performance of rigid disk drives is disclosed. One or more layers of tape wrapped around the disk drive reduces the effects of externally applied and internally generated vibration by adding damping, adding nominal amount of stiffness, and by eliminating the modes of vibration that cause degradation in performance.

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Vibration Damping in Direct Access Storage Devices with Constrained Layered Tape Wrap

      A method for reducing the adverse effects of vibration on the
performance of rigid disk drives is disclosed.  One or more layers of
tape wrapped around the disk drive reduces the effects of externally
applied and internally generated vibration by adding damping, adding
nominal amount of stiffness, and by eliminating the modes of
vibration that cause degradation in performance.

      The Figure shows a disk drive with two main components, which
are the disk enclosure and the user frame.  The assembly of the disk
enclosure and the user frame is taped together using multiple wraps
of a tape having thermal expansion properties that are similar to the
structures being wrapped.

      The adhesive backing on the tape must be able to maintain its
adhesive qualities across a wide temperature range, and also provide
vibration damping.  This type of mounting scheme is effective in
improving the vibration performance without exhibiting the several
disadvantages which occur by just making the shock mount system
stiffer.