Abstract
In this paper, the use of μ-synthesis technique for the vibration control of plate-like structures is investigated. First, a robust μ-controller is synthesized and the selection of weightings is discussed. Different from the conventional studies, the mathematical model between the disturbance force and the structure is not required during the controller design. A MIMO control system is built using dSPACE DS1103 platform. Then, MIMO experimental tests are performed. A H∞controller with same weightings is also designed and implemented for comparison purpose. Small masses are added to the structure to simulate parameter variations for the robustness investigation. Experimental results show that μ-controller can provide good disturbance rejection in the analyzed bandwidth and is more robust to parameter variations than H∞controller. The experimental findings of the present study using a MIMO μ-synthesis scheme are believed to be useful for the vibration control of more general thin-walled structures.
Original language | English |
---|---|
Pages (from-to) | 973-986 |
Number of pages | 14 |
Journal | Thin-Walled Structures |
Volume | 41 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1 Nov 2003 |
Keywords
- μ-Synthesis
- H control ∞
- Parameter variation
- Plate vibration
- Robust control
- Weighting function
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Mechanical Engineering