TY - JFULL
AU - T.C. Manjunath and B. Bandyopadhyay
PY - 2007/7/
TI - Multivariable Control of Smart Timoshenko Beam Structures Using POF Technique
T2 - International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering
SP - 275
EP - 292
EM - tcmanju@sc.iitb.ac.in, tcmanjunath@gmail.com, bijnan@ee.iitb.ac.in
VL - 1
SN - 1307-6892
UR - http://waset.org/publications/684
PU - World Academy of Science, Engineering and Technology
NX - International Science Index 6, 2007
N2 - Active Vibration Control (AVC) is an important
problem in structures. One of the ways to tackle this problem is to
make the structure smart, adaptive and self-controlling. The objective
of active vibration control is to reduce the vibration of a system by
automatic modification of the system-s structural response. This
paper features the modeling and design of a Periodic Output
Feedback (POF) control technique for the active vibration control of
a flexible Timoshenko cantilever beam for a multivariable case with
2 inputs and 2 outputs by retaining the first 2 dominant vibratory
modes using the smart structure concept. The entire structure is
modeled in state space form using the concept of piezoelectric
theory, Timoshenko beam theory, Finite Element Method (FEM) and
the state space techniques. Simulations are performed in MATLAB.
The effect of placing the sensor / actuator at 2 finite element
locations along the length of the beam is observed. The open loop
responses, closed loop responses and the tip displacements with and
without the controller are obtained and the performance of the smart
system is evaluated for active vibration control.
ER -