Vibration Control Of A Smart Structure Flexible Cantilever Beam Using Periodic Output Feedback Control Technique  

Oleh:

Manjunath, T.C. ; Bandyopadhyay, B.

Jenis: Article from Article
Dalam koleksi: Final Program and Book of Abstracts: The 4th Asian Control Conference, September 25-27, 2002 (Sep. 2002), page 1302-1307.
Topik: Vibration Control; Smart Structure; Flexible Cantilever; Beam; Periodic Output Feedback; Control Technique
Fulltext: AC021679.PDF (300.24KB)

Isi artikel

The objective of active vibration control is to reduce the vibration of a system by automatic modification of the system’s structural response. This work features the modeling and design of a periodic output feedback control technique for the vibration control of a smart flexible cantilever beam system. A periodic output feedback controller is designed for the beam by bonding patches of piezoelectric layer as sensor / actuator to the master structure at different locations along the length of the beam. The entire structure is modeled in state space form using the finite element method by dividing the structure into 3, 4, 5 elements, thus giving rise to three types of systems, viz., system 1 (beam divided into 3 finite elements), system 2 (beam divided inot 4 finite elements), system 3 (beam divided into 5 finite elements). Periodic output feedback controllers are designed for the above three types of systems for different sensor / actuator locations along the length of the beam by retaining the first two vibratory modes. The smart cantilever beam model is developed using the concept of piezoelectrics and is based on the Euler - Bernouli theory principles. The effect of placing the sensor / actuator at various locations along the length of the beam for all the three types of systems is observed and the conclusions are drawn for the best performance and for the smallest magnitude of the control input u required to control the vibrations.

Opini Anda

Klik untuk menuliskan opini Anda tentang koleksi ini!

Kembali