2012 Fiscal Year Final Research Report
Semi-active Vibration Suppression System for Smart Structures (A Research for Reducing Energy Consumption)
| Project/Area Number |
22560785
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Aerospace engineering
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
OKUBO Hiroshi 大阪府立大学, 大学院・工学研究科, 教授 (40094502)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 柔軟宇宙構造物 / 振動制御 |
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| Research Abstract |
A semi-active vibration suppression system comprising piezoelectric elements is developed for high-precision shape control of space structures such as pace antenna. In this study, we propose a semi-active vibration control law to improve the damping effect while maintaining the stability and energy efficiency of the passive control system. The proposed control law is based ona sliding-mode control that accelerates the convergence of the system by using switching functions. The results of the numerical simulations and hardware experiments on a laboratory model show that the proposed semi-active vibration control system is practically effective in damping vibrations.
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