A Comparative Study of Turning and Stationary Groove Journal Bearings for HDD Spindle Motors Under Transient Contact Conditions
This paper compares the turning and stationary groove configurations of oil lubricated journal bearings used in hard disk drive (HDD) spindle motors under transient contact conditions, such as at startup and shutdown. With rapidly expanding applications for HDDs, spindle motors are required to have...
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| Veröffentlicht in: | IEEE transactions on magnetics 2007-09, Vol.43 (9), p.3727-3733 |
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| container_title | IEEE transactions on magnetics |
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| creator | Ming Feng Kenjo, T. |
| description | This paper compares the turning and stationary groove configurations of oil lubricated journal bearings used in hard disk drive (HDD) spindle motors under transient contact conditions, such as at startup and shutdown. With rapidly expanding applications for HDDs, spindle motors are required to have lower friction and wear while driving more disks, and be downsized at the same time. It has been known for some time that the turning groove bearing outperforms the stationary groove bearing with regard to friction torque in steady-state operations. However, the friction and wear of the two configurations under the transient contact conditions are still not well understood. To clarify this, we used a model previously proposed and validated experimentally to determine the motion of the turning member in the bearing by simultaneously solving the nonlinear differential equations of motion, the pressure-compliance relationship of elastic-plastic roughness contact, and the average flow Reynolds equation. The different characteristics of the turning and stationary groove configurations are then discussed for both herringbone groove and multi-taper bearings. |
| doi_str_mv | 10.1109/TMAG.2007.902979 |
| format | Article |
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With rapidly expanding applications for HDDs, spindle motors are required to have lower friction and wear while driving more disks, and be downsized at the same time. It has been known for some time that the turning groove bearing outperforms the stationary groove bearing with regard to friction torque in steady-state operations. However, the friction and wear of the two configurations under the transient contact conditions are still not well understood. To clarify this, we used a model previously proposed and validated experimentally to determine the motion of the turning member in the bearing by simultaneously solving the nonlinear differential equations of motion, the pressure-compliance relationship of elastic-plastic roughness contact, and the average flow Reynolds equation. The different characteristics of the turning and stationary groove configurations are then discussed for both herringbone groove and multi-taper bearings.</description><identifier>ISSN: 0018-9464</identifier><identifier>EISSN: 1941-0069</identifier><identifier>DOI: 10.1109/TMAG.2007.902979</identifier><identifier>CODEN: IEMGAQ</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Bearing ; Contact ; Differential equations ; Friction ; Grooves ; Hard disks ; HDD ; hydrodynamic lubrication ; Hydrodynamics ; Journal bearings ; Lubrication ; Magnetism ; Manufacturing ; Motors ; Petroleum ; Plastics ; spindle motor ; Spindles ; Steady-state ; Turning ; wear</subject><ispartof>IEEE transactions on magnetics, 2007-09, Vol.43 (9), p.3727-3733</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2007</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c353t-8232dd2ff5e2594927151fbe8e5ee51abf423e68f1e20d22ed5d6e4d3edbc9b63</citedby><cites>FETCH-LOGICAL-c353t-8232dd2ff5e2594927151fbe8e5ee51abf423e68f1e20d22ed5d6e4d3edbc9b63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/4292290$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/4292290$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Ming Feng</creatorcontrib><creatorcontrib>Kenjo, T.</creatorcontrib><title>A Comparative Study of Turning and Stationary Groove Journal Bearings for HDD Spindle Motors Under Transient Contact Conditions</title><title>IEEE transactions on magnetics</title><addtitle>TMAG</addtitle><description>This paper compares the turning and stationary groove configurations of oil lubricated journal bearings used in hard disk drive (HDD) spindle motors under transient contact conditions, such as at startup and shutdown. With rapidly expanding applications for HDDs, spindle motors are required to have lower friction and wear while driving more disks, and be downsized at the same time. It has been known for some time that the turning groove bearing outperforms the stationary groove bearing with regard to friction torque in steady-state operations. However, the friction and wear of the two configurations under the transient contact conditions are still not well understood. To clarify this, we used a model previously proposed and validated experimentally to determine the motion of the turning member in the bearing by simultaneously solving the nonlinear differential equations of motion, the pressure-compliance relationship of elastic-plastic roughness contact, and the average flow Reynolds equation. The different characteristics of the turning and stationary groove configurations are then discussed for both herringbone groove and multi-taper bearings.</description><subject>Bearing</subject><subject>Contact</subject><subject>Differential equations</subject><subject>Friction</subject><subject>Grooves</subject><subject>Hard disks</subject><subject>HDD</subject><subject>hydrodynamic lubrication</subject><subject>Hydrodynamics</subject><subject>Journal bearings</subject><subject>Lubrication</subject><subject>Magnetism</subject><subject>Manufacturing</subject><subject>Motors</subject><subject>Petroleum</subject><subject>Plastics</subject><subject>spindle motor</subject><subject>Spindles</subject><subject>Steady-state</subject><subject>Turning</subject><subject>wear</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kTtP7DAQhS0EEsujR6KxKKDK4nficllguQhEwVJH3niMgrL2YmeRqPjrODdXt6CgGs2cb85IcxA6oWRKKdGXy8fZYsoIKaeaMF3qHTShWtCCEKV30YQQWhVaKLGPDlJ6y62QlEzQ1wzPw3pjounbD8DP_dZ-4uDwcht961-x8TYPsxi8iZ94EUPI2H3IsunwFZiYqYRdiPju-ho_b1pvO8CPoQ8x4RdvIeJlND614Pt8yvem-VttO3imI7TnTJfg-F89RC-3N8v5XfHwtPgznz0UDZe8LyrGmbXMOQlMaqFZSSV1K6hAAkhqVk4wDqpyFBixjIGVVoGwHOyq0SvFD9HF6LuJ4X0Lqa_XbWqg64yHsE11VRElSy5ZJs9_JbmQipRqsDz7Ab6Nb8luSlChy0pniIxQE0NKEVy9ie06v7KmpB6Cq4fg6iG4egwur5yOKy0A_McF04xpwr8BQGCVYg</recordid><startdate>20070901</startdate><enddate>20070901</enddate><creator>Ming Feng</creator><creator>Kenjo, T.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>20070901</creationdate><title>A Comparative Study of Turning and Stationary Groove Journal Bearings for HDD Spindle Motors Under Transient Contact Conditions</title><author>Ming Feng ; Kenjo, T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c353t-8232dd2ff5e2594927151fbe8e5ee51abf423e68f1e20d22ed5d6e4d3edbc9b63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Bearing</topic><topic>Contact</topic><topic>Differential equations</topic><topic>Friction</topic><topic>Grooves</topic><topic>Hard disks</topic><topic>HDD</topic><topic>hydrodynamic lubrication</topic><topic>Hydrodynamics</topic><topic>Journal bearings</topic><topic>Lubrication</topic><topic>Magnetism</topic><topic>Manufacturing</topic><topic>Motors</topic><topic>Petroleum</topic><topic>Plastics</topic><topic>spindle motor</topic><topic>Spindles</topic><topic>Steady-state</topic><topic>Turning</topic><topic>wear</topic><toplevel>online_resources</toplevel><creatorcontrib>Ming Feng</creatorcontrib><creatorcontrib>Kenjo, T.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>IEEE transactions on magnetics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Ming Feng</au><au>Kenjo, T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Comparative Study of Turning and Stationary Groove Journal Bearings for HDD Spindle Motors Under Transient Contact Conditions</atitle><jtitle>IEEE transactions on magnetics</jtitle><stitle>TMAG</stitle><date>2007-09-01</date><risdate>2007</risdate><volume>43</volume><issue>9</issue><spage>3727</spage><epage>3733</epage><pages>3727-3733</pages><issn>0018-9464</issn><eissn>1941-0069</eissn><coden>IEMGAQ</coden><abstract>This paper compares the turning and stationary groove configurations of oil lubricated journal bearings used in hard disk drive (HDD) spindle motors under transient contact conditions, such as at startup and shutdown. With rapidly expanding applications for HDDs, spindle motors are required to have lower friction and wear while driving more disks, and be downsized at the same time. It has been known for some time that the turning groove bearing outperforms the stationary groove bearing with regard to friction torque in steady-state operations. However, the friction and wear of the two configurations under the transient contact conditions are still not well understood. To clarify this, we used a model previously proposed and validated experimentally to determine the motion of the turning member in the bearing by simultaneously solving the nonlinear differential equations of motion, the pressure-compliance relationship of elastic-plastic roughness contact, and the average flow Reynolds equation. The different characteristics of the turning and stationary groove configurations are then discussed for both herringbone groove and multi-taper bearings.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TMAG.2007.902979</doi><tpages>7</tpages></addata></record> |
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| ispartof | IEEE transactions on magnetics, 2007-09, Vol.43 (9), p.3727-3733 |
| issn | 0018-9464 1941-0069 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Bearing Contact Differential equations Friction Grooves Hard disks HDD hydrodynamic lubrication Hydrodynamics Journal bearings Lubrication Magnetism Manufacturing Motors Petroleum Plastics spindle motor Spindles Steady-state Turning wear |
| title | A Comparative Study of Turning and Stationary Groove Journal Bearings for HDD Spindle Motors Under Transient Contact Conditions |
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