| Project/Area Number |
16K14282
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Control engineering/System engineering
|
|---|
| Research Institution | Utsunomiya University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
鈴木 雅康 宇都宮大学, 工学部, 助教 (10456692)
|
|---|
| Research Collaborator |
USUI Syunsuke
FUKUDA Masahiro
TAMEKUNI Kohta
TAKIZAWA Yuya
|
|---|
| Project Period (FY) |
2016-04-01 – 2019-03-31
|
| Project Status |
Completed (Fiscal Year 2018)
|
| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
|
|---|
| Keywords | ハードディスク装置 / エネルギー回生 / 制振軌道設計 / 終端状態制御 / PWM型入力系 / シーク制御 / 軌道設計 / ナノスケールサーボ制御 / ロバスト制御 |
|---|
| Outline of Final Research Achievements |
The number of hard disk drives (HDDs) in the world is rapidly increasing combined with the spread use of cloud systems, and the energy consumption by HDDs cannot be ignored. Therefore, the reduction of the energy consumption of HDDs will have a big impact on society. Thus, this research focused on the control problem of HDDs with an energy storage mechanism. The positioning system of HDD has mechanical vibration modes at high frequency, and the positioning trajectory must be designed to reduce not only energy consumption but also residual vibration. This research used a final-state control method to design the trajectory considering the tradeoff between the energy consumption and damping performance. The effectiveness of the proposed method was evaluated by conducting experiments using a two-mass spring system, which is a simple model of HDDs, and we showed that the effect of the energy reduction was increased when we used the vibration minimized trajectory.
|
| Academic Significance and Societal Importance of the Research Achievements |
HDDの消費電力は近い将来原発数百基分に膨れ上がるとの試算もある。そのため，消費電力を数％低減できただけでも，相当大きな削減となる。さらに，本研究で得られた成果は，工場などで24時間操業される工作機械など，各種産業機器の消費電力削減にも有効である。このように，本研究の成果は低炭素社会の実現に大きく貢献できる。
|
