Smart Structures and Systems

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Modeling and fast output sampling feedback control of a smart Timoshenko cantilever beam

  • Manjunath, T. C. (Interdisciplinary Programme in Systems and Control Engineering, Indian Institute of Technology Bombay) ;
  • Bandyopadhyay, B. (Systems and Control Engineering, I.I.T. Bombay)
  • Received : 2004.12.01
  • Accepted : 2005.04.26
  • Published : 2005.09.25
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Abstract

This paper features about the modeling and design of a fast output sampling feedback controller for a smart Timoshenko beam system for a SISO case by considering the first 3 vibratory modes. The beam structure is modeled in state space form using FEM technique and the Timoshenko beam theory by dividing the beam into 4 finite elements and placing the piezoelectric sensor/actuator at one location as a collocated pair, i.e., as surface mounted sensor/actuator, say, at FE position 2. State space models are developed for various aspect ratios by considering the shear effects and the axial displacements. The effects of changing the aspect ratio on the master structure is observed and the performance of the designed FOS controller on the beam system is evaluated for vibration control.

Keywords

References

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