Design, fabrication, and testing of silicon microgimbals for super-compact rigid disk drives [PDF]
, 1995 This paper documents results related to design optimization, fabrication process refinement, and micron-level static/dynamic testing of silicon micromachined microgimbals that have applications in super-compact computer disk drives as well as many other ...
Hsieh, Wen H. +4 more
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Actuators, 2019 In modern times, the design and optimization of different actuator systems for controlling a high-precision position control system represent a popular interdisciplinary research area.
Alamgir Hossain, Md. Arifur Rahman
doaj +1 more source
Accurate Runout Measurement for HDD Spinning Motors and Disks
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2010 As hard disk drive (HDD) areal density increases, its track width becomes smaller and smaller and so is non-repeatable runout. HDD industry needs more accurate and better resolution runout measurements of spinning spindle motors and media platters in ...
Quan JIANG, Chao BI, Song LIN
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Tracing chemical evolution over the extent of the Milky Way's Disk with APOGEE Red Clump Stars [PDF]
, 2014 We employ the first two years of data from the near-infrared, high-resolution SDSS-III/APOGEE spectroscopic survey to investigate the distribution of metallicity and alpha-element abundances of stars over a large part of the Milky Way disk.
Anders, Friedrich +42 more
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Frequency Adaptive Control Technique for Periodic Runout and Wobble Cancellation in Optical Disk Drives [PDF]
Journal of Systemics, Cybernetics and Informatics, 2006 Periodic disturbance occurs in various applications on the control of the rotational mechanical systems. For optical disk drives, the spirally shaped tracks are usually not perfectly circular and the assembly of the disk and spindle motor is unavoidably ...
Yee-Pien Yang, Jieng-Jang Liu
doaj
Simulations of Accretion Powered Supernovae in the Progenitors of Gamma Ray Bursts [PDF]
, 2012 Observational evidence suggests a link between long duration gamma ray bursts (LGRBs) and Type Ic supernovae. Here, we propose a potential mechanism for Type Ic supernovae in LGRB progenitors powered solely by accretion energy.
Arnett +90 more
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Track following control using nonlinear model predictive control in hard disk drives [PDF]
2013 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2013 In this paper, a Nonlinear Model Predictive Control (NMPC) is proposed to control a single stage Voice-Coil- Motor (VCM) of a Hard-Disk-Drive (HDD). Due to its fast settling time and its robustness, this controller is suggested to be applied for the first time to control a R/W head of an HDD. To highlight the good performance and characteristics of the
Taktak-Meziou, Manel +3 more
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Effects of Nitride on the Tribological Properties of the Low Carbon Alloy Steel
Advances in Materials Science and Engineering, 2013 The technology of composite heat treatment is used popularly for low friction and wear resistance of drive elements. A large number of papers about the heat treatment technology had been proposed.
Yuh-Ping Chang +4 more
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The chemical abundances in the Galactic Centre from the atmospheres of Red Supergiants [PDF]
, 2008 The Galactic Centre (GC) has experienced a high degree of recent star-forming activity, as evidenced by the large number of massive stars currently residing there.
Asplund +38 more
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Silicon micromachined electromagnetic microactuators for rigid disk drives [PDF]
, 1995 It is projected that by the year 2001, the disk drive industry will be shipping products with track density on the order of 25,000 tracks-per-inch, which would require a servo bandwidth of at least 3 kHz.
Desai, Amish +5 more
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