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Jonathan Wickert
Department of Mechanical Engineering
Carnegie Mellon University
Mechanical Vibration Challenges in High
Density Computer Data Storage
Abstract
Encompassing hieroglyphics and peer-to-peer file sharing, the storage of
information is a fundamental human activity. Each year, several exabytes of
new data are produced and stored, primarily in digital form on computer hard
disk drives and robotic tape libraries. The density at which information can
be stored magneticallydata bits per square inch in disk drives, and per
cubic inch in tape librarieshas grown historically at a compound annual
growth rate of approximately 60%. We are nearing the point at which the
contents of the Library of Congress can be held in ones hand. Computer data
storage is an interdisciplinary endeavor, and resolving problems in the area
of mechanical vibration at the submicron scale is key to future increases in
data track density. In this seminar, several challenges related to vibration
reduction and improving track following in hard disk drives and tape
libraries will be discussed.
Biosketch
Jonathan Wickert is Professor of Mechanical Engineering at Carnegie
Mellon University and specializes in mechanical vibration and the dynamics
of continuous systems. Supported by industry and the federal government, Dr.
Wickerts research in machine vibration addresses disk and tape drives used
for computer data storage, web and strand transport systems in
manufacturing, and automotive braking systems. Dr. Wickert is a Fellow of
the American Society of Mechanical Engineers, and has received awards for
educational and research contributions from the Society of Automotive
Engineers, the American Society for Engineering Education, and the
Information Storage Industry Consortium. His textbook An Introduction to
Mechanical Engineering was published last year. Dr. Wickert received his
engineering degrees from the University of California, Berkeley, and was a
post-doctoral fellow at the University of Cambridge, UK.
Wednesday, January 21, 2004
Bourns Hall, Room A265
10:10 a.m.-11:00 a.m.
(Refreshments will be served at 10:00 a.m.) |
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