Effect of Pivot Clearance on Head Positioning of a Rotary Actuator for Magnetic Disk StorageSource: Journal of Mechanical Design:;1986:;volume( 108 ):;issue: 004::page 556Author:T. Kakizaki
DOI: 10.1115/1.3258769Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of pivot clearance on the dynamic characteristics of a rotary actuator for head positioning in magnetic disk storage is numerically investigated. A motion equation which takes pivot clearance and pivot bearing elasticity into account is derived for a track-following servo-controlled actuator. Elastic deformation of a bearing as well as head positioning error increase in a sudden step when the bearing makes alternating impacts at the antipodes of the pivot shaft. Based on the result, design criteria are obtained for the maximum acceptable clearance for high accuracy in head positioning.
keyword(s): Clearances (Engineering) , Actuators , Magnetic disc storage , Bearings , Design , Errors , Elasticity , Deformation , Servomechanisms AND Equations of motion ,
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| contributor author | T. Kakizaki | |
| date accessioned | 2017-05-08T23:23:01Z | |
| date available | 2017-05-08T23:23:01Z | |
| date copyright | December, 1986 | |
| date issued | 1986 | |
| identifier issn | 1050-0472 | |
| identifier other | JMDEDB-28070#556_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/101429 | |
| description abstract | The effect of pivot clearance on the dynamic characteristics of a rotary actuator for head positioning in magnetic disk storage is numerically investigated. A motion equation which takes pivot clearance and pivot bearing elasticity into account is derived for a track-following servo-controlled actuator. Elastic deformation of a bearing as well as head positioning error increase in a sudden step when the bearing makes alternating impacts at the antipodes of the pivot shaft. Based on the result, design criteria are obtained for the maximum acceptable clearance for high accuracy in head positioning. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Effect of Pivot Clearance on Head Positioning of a Rotary Actuator for Magnetic Disk Storage | |
| type | Journal Paper | |
| journal volume | 108 | |
| journal issue | 4 | |
| journal title | Journal of Mechanical Design | |
| identifier doi | 10.1115/1.3258769 | |
| journal fristpage | 556 | |
| journal lastpage | 561 | |
| identifier eissn | 1528-9001 | |
| keywords | Clearances (Engineering) | |
| keywords | Actuators | |
| keywords | Magnetic disc storage | |
| keywords | Bearings | |
| keywords | Design | |
| keywords | Errors | |
| keywords | Elasticity | |
| keywords | Deformation | |
| keywords | Servomechanisms AND Equations of motion | |
| tree | Journal of Mechanical Design:;1986:;volume( 108 ):;issue: 004 | |
| contenttype | Fulltext |