Integrated Design of Structure/Controller for Head Gimbals Assembly of Magnetic Recording Test Stand
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- ANDO Hiroki
- Graduate School of Engineering, Nagoya University
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- OBINATA Goro
- 名古屋大学エコトピア科学研究機構先端技術共同研究センター
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- MIYAGAKI Junichiro
- 三菱重工業 (株)
Bibliographic Information
- Other Title
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- 磁気記録評価装置用変位拡大位置決め機構の構造系と制御系の統合化設計
- ジキ キロク ヒョウカ ソウチヨウ ヘンイ カクダイ イチギメ キコウ ノ コウゾウケイ ト セイギョケイ ノ トウゴウカ セッケイ
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Abstract
The integrated design of structure/control systems for high-speed positioning control of a head gimbal assembly (HGA) in spin stands is considered in this paper. A diamond shape structure, which is axisymmetrical to two orthogonal axes, is adopted for the displacement amplifier of a HGA. Two PZT linear actuators are built in the structure to control the position of the HGA. If the generated forces of the two actuators are acted symmetrically to the two axes and there is no disturbance force acting on the structure, non-symmetrical vibration modes to the two orthogonal axes will not be activated in the structure; moreover, only one symmetrical mode will come out. Since the natural frequency of the mode which can be excited by the symetrical operation of the two actuators is very high, there is a possibility to achieve a much higher bandwidth of the HGA positioning control system in comparison with conventional structures of displacement amplifiers. The simultaneous optimization on these parameters of the structure and the controller has been conducted, and then the effectiveness of the design result has been verified in the frequency responses. Moreover, the robustness properties against the worked accuracy on the structure and the imbalances in the generated forces of the actuators and/or the masses of suspended loads have been tested to ensure the performance.
Journal
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- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
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TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 71 (703), 987-994, 2005
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390001206356273792
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- NII Article ID
- 110006264624
- 120000975488
- 130004235598
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- NII Book ID
- AN00187463
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- ISSN
- 18848354
- 03875024
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- HANDLE
- 2237/8967
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- NDL BIB ID
- 7294091
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed