A system, method, and apparatus for solving flow-induced track misregistration (TMR) problems in hard disk drives (HDD). Boundary layer manipulation techniques are applied to the airflow in the HDD, such as boundary layer suction with slots or holes, and wall damping techniques, such as an open honeycomb seal and Helmholtz resonators. These flow-conditioning solutions reduce the turbulence intensity throughout the HDD to reduce TMR. These solutions achieve these goals while minimizing increases in the running torque needed to overcome their inherent rotational drag.
System, Method, And Apparatus For Breaking Up Large-Scale Eddies And Straightening Air Flow Inside Rotary Disk Storage Devices
Juan Jose Alonso - Stanford CA, US Andre Sirilutporn Chan - Milpitas CA, US Ferdinand Hendriks - Morgan Hill CA, US
Assignee:
Hitachi Global Storage Technologies Netherlands BV - Amsterdam
International Classification:
G11B 33/14 G11B 17/02
US Classification:
360 9702
Abstract:
A system, method, and apparatus for solving flow-induced track misregistration (TMR) problems in hard disk drives (HDD) are directed to breaking up large-scale eddies, and straightening air flows with honeycomb structures, woven wire screens, and guide vanes or holes. In addition, boundary layer manipulation techniques are applied to the airflow in the HDD, such as boundary layer suction with slots or holes, and wall damping techniques, such as an open honeycomb seal and Helmholtz resonators. These flow-conditioning solutions reduce the turbulence intensity throughout the HDD to reduce TMR. These solutions achieve these goals while minimizing increases in the running torque needed to overcome their inherent rotational drag.
Name / Title
Company / Classification
Phones & Addresses
Juan F. Alonso Director
Ling??Stica Corporation
Juan Pedro Alonso Director
Pv Hardware LLC Provider of Renewable Energy (Products) · Mfg Measuring/Controlling Devices · Structural Metal Fabrication
7737 Fair Oaks Blvd, Carmichael, CA 95608 235 Montgomery St, San Francisco, CA 94104 7732 Fair Oaks Blvd, Carmichael, CA 95608 PO Box 479, Carmichael, CA 95609
Juan Alonso Chairman, Director
Casa Aircraft Inc International Trade and Development · Detective/Armored Car Services
The second suspect,Juan Alonso, was taken into custody Sunday night after a homeowner found him sleeping under his trailer. Deputies found the first victims wallet in Alonsos back pocket, as well as a pocket knife taken from the victims truck.
Date: Jan 04, 2016
Category: U.S.
Source: Google
Recommended: Why the 'Downton Abbey' theme song makes us drool
Juan Alonso-Rodriguez, a 56-year-old visual artist from Seattle, says he has the same kind of anticipatory reaction whenever he hears the theme to "True Blood," an ongoing HBO vampires series set in Louisiana.
Date: Feb 17, 2013
Category: Entertainment
Source: Google
Flickr
Googleplus
Juan Alonso
Work:
AutoZone Inc. - Front-End Developer (2009)
Education:
International Academy of Design and Technology - Bachelor In Fine Arts, Felix Varela Senior High - Hish School
Juan Alonso
Work:
La Agrícola Regional - Administrativo/Contable (2012)
Education:
Universidad Nacional de Quilmes - Contador Publico Nacional
Tagline:
Y vuela lejos hombre, que nada se interponga
Juan Alonso
Work:
Consumer Sales Solutions LLC
Education:
Mariano Acosta
About:
Enjoying my present life, there's no other way.. ! :P
Juan Alonso
Work:
Y. u kare :-P - Idk (2013)
Education:
Idk and y da fukkkkkkkk !!!!!!! U KARE - Idk
Juan Alonso
Education:
Sullivan South High School, Kingsport, TN, Jones International University
Tagline:
Marketer wholoves to help people.
Juan Alonso
Education:
Florida International University - Political Science/ International Relations, Miami Dade College - Political Science
Juan Alonso
Work:
Smart Sky
Education:
Unidad Profesional Interdisciplinaria de Ingeniería, Ciencias Sociales y Administrativas - Instituto Politécnico Nacional - Administración Industrial
Juan Alonso
Education:
CFT Simon Bolivar - Analisis de Sistema
Tagline:
El mayor tesoro de los hombres es una inteligencia sin limites