[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Swann et al., 1996 - Google Patents

Non-repeatable runout measurement and simulation of fluid lubricated spindles

Swann et al., 1996

Document ID
12286924950924378906
Author
Swann A
Harrison J
Talke F
Publication year
Publication venue
IEEE Transactions on Magnetics

External Links

Snippet

The non-repeatable runout (NRRO) of small self-acting air bearing spindles is investigated using high precision capacitance probe transducers. Transient NRRO, spindle start-up time, and power consumption are determined at start-up for horizontal and vertical spindle …
Continue reading at ieeexplore.ieee.org (other versions)

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING ENGINES OR PUMPS
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/107—Grooves for generating pressure
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts

Similar Documents

Publication Publication Date Title
EP0763168A1 (en) Hydrodynamic bearing having inverted surface tension seals
Ouyang et al. Experimental study on the dynamic performance of water‐lubricated rubber bearings with local contact
Asada et al. Design of hydrodynamic bearings for high-speed HDD
Kim et al. Prediction of aeroelastic flutter in a hard disk drive
Swann et al. Non-repeatable runout measurement and simulation of fluid lubricated spindles
Jang et al. New frequency domain method of nonrepeatable runout measurement in a hard disk drive spindle motor
Matsuoka et al. Development of FDB spindle motors for HDD use
Ku Dynamic characteristics of hard disk drive spindle motors—comparison between ball bearings and hydrodynamic bearings
Jang et al. Characterization of NRRO in a HDD spindle system due to ball bearing excitation
Wang et al. Head-disk dynamics in the flying, near contact, and contact regimes
US6804987B2 (en) Apparatus and method for air-contamination detection in disc drive hydrodynamic bearings
Guan et al. Vibration control for rotor mounted on a novel active bump type foil bearing with controllable mechanical preloads
Zhu et al. A comparison study on the performance of four types of oil lubricated hydrodynamic thrust bearings for hard disk spindles
JP2000508415A (en) Fluid bearing including means for monitoring capacitance between rotor and stator
Jang et al. New design of a HDD spindle motor using damping material to reduce NRRO
US6907769B2 (en) Apparatus and method for detecting air contamination in fluid dynamic bearings
Ku Effects of compliance of hydrodynamic thrust bearings in hard disk drives on disk vibration
Reddy et al. Experimental investigation on the performance characteristics of tilting pad journal bearings for small LD ratios
JP3912675B2 (en) Inspection method for hydrodynamic bearings
Cunningham Experiments on Stability of Herringbone-Grooved Gas-Lubricated Journal Bearings to High Compressibility Numbers
JPH11183329A (en) Life inspecting device and inspecting method for dynamic pressure bearing device
Jang et al. Experimental study on whirling, flying and tilting motions of a 3.5 in. FDB spindle system
Fu et al. Analysis of stresses induced by dynamic load head-disk contacts
CN115962938B (en) Non-contact testing method for air film rigidity of H-shaped dynamic pressure bearing gyro motor of gyroscope
Roger Ku et al. Effect of disk flexibility on rocking mode frequencies of a disk drive spindle motor system