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Temperature Dependent Robust Control of Hard Disk Drives Using Parameter Varying Techniques.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Temperature Dependent Robust Control of Hard Disk Drives Using Parameter Varying Techniques./
作者:	Honda, Masanori.
面頁冊數:	1 online resource (132 pages)
附註:	Source: Dissertation Abstracts International, Volume: 78-04(E), Section: B.
Contained By:	Dissertation Abstracts International78-04B(E).
標題:	Mechanical engineering. -
電子資源:	click for full text (PQDT)
ISBN:	9781369367348

Temperature Dependent Robust Control of Hard Disk Drives Using Parameter Varying Techniques.
Honda, Masanori.

Temperature Dependent Robust Control of Hard Disk Drives Using Parameter Varying Techniques. - 1 online resource (132 pages)

Source: Dissertation Abstracts International, Volume: 78-04(E), Section: B.

Thesis (Ph.D.)

Includes bibliographical references

A hard disk drive (HDD) is a device that stores digital data by writing and reading magnetic signals onto a disk using a magnetic transducer. The data is organized into circular tracks that are less than 100 nm wide. Modern HDDs use a dual-state actuator to position the transducer onto these tracks. Since the tracks are extremely narrow, a high performance controller is required to reject disturbances from various sources and maintain the position of the transducer on a single track.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9781369367348Subjects--Topical Terms:

557493
Mechanical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Temperature Dependent Robust Control of Hard Disk Drives Using Parameter Varying Techniques.
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500 $a Source: Dissertation Abstracts International, Volume: 78-04(E), Section: B.
500 $a Adviser: Peter Seiler.
502 $a Thesis (Ph.D.) $c University of Minnesota $d 2016.
504 $a Includes bibliographical references
520 $a A hard disk drive (HDD) is a device that stores digital data by writing and reading magnetic signals onto a disk using a magnetic transducer. The data is organized into circular tracks that are less than 100 nm wide. Modern HDDs use a dual-state actuator to position the transducer onto these tracks. Since the tracks are extremely narrow, a high performance controller is required to reject disturbances from various sources and maintain the position of the transducer on a single track.
520 $a This dissertation focuses on designing a robust controller for the HDD system. The controller must be robust to its external environment, such as changes in temperature, and provide good performance to thousands of drives. An adequate uncertainty model designed using first principles is not available for robust controller design. Thus a set of frequency response data (FRD) measured from a number of HDDs and at different temperature points is used to design the uncertainty model of the system. A basic method of averaging the set of FRD to create an uncertainty model is used to design the baseline controller through a standard D-K synthesis method. A numerical algorithm is then developed to create an optimal uncertainty model for the system using the experimental FRD. Using this algorithm, a temperature dependent model is designed for the purpose of designing a temperature dependent robust controller. Finally a temperature dependent controller is designed to increase the performance of the HDDs compared to the baseline controller, and the theoretical validation for the method is given.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Mechanical engineering. $3 557493
650 4 $a Engineering. $3 561152
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690 $a 0537
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of Minnesota. $b Aerospace Engineering and Mechanics. $3 1179183
773 0 $t Dissertation Abstracts International $g 78-04B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10196562 $z click for full text (PQDT)