Active Vibration Control of a Smart Cantilever Beam on General Purpose Operating System

A. P. Parameswaran; A. B. Pai; P. K. Tripathi; K. V. Gangadharan

doi:10.14429/dsj.63.4865

A. P. Parameswaran National Institute of Technology, Surathkal
A. B. Pai National Institute of Technology, Surathkal
P. K. Tripathi National Institute of Technology, Surathkal
K. V. Gangadharan National Institute of Technology, Surathkal

DOI: https://doi.org/10.14429/dsj.63.4865

Keywords: Smart cantilever beam, active vibration control, direct output feedback, Lead Zirconate-Titanate

Abstract

All mechanical systems suffer from undesirable vibrations during their operations. Their occurrence is uncontrollable as it depends on various factors. However, for efficient operation of the system, these vibrations have to be controlled within the specified limits. Light weight, rapid and multi-mode control of the vibrating structure is possible by the use of piezoelectric sensors and actuators and feedback control algorithms. In this paper, direct output feedback based active vibration control has been implemented on a cantilever beam using Lead Zirconate-Titanate (PZT) sensors and actuators. Three PZT patches were used, one as the sensor, one as the exciter providing the forced vibrations and the third acting as the actuator that provides an equal but opposite phase vibration/force signal to that of sensed so as to damp out the vibrations. The designed algorithm is implemented on Lab VIEW 2010 on Windows 7 Platform.

Defence Science Journal, 2013, 63(4), pp.413-417, DOI:http://dx.doi.org/10.14429/dsj.63.4865

Author Biographies

A. P. Parameswaran, National Institute of Technology, Surathkal

Mr Arun P. Parameswaran obtained his BE (Electrical & Electronics Eng.) from College of Engineering, Farmagudi, Goa, and MTech (Control Systems) from Manipal University. Currently pursuing his PhD at National Institute of Technology (NITK)-Surathkal. His research area include: Monitoring of machine vibrations and their control in real time, smart materials and their applications in vibration control.

A. B. Pai, National Institute of Technology, Surathkal

Mr Avinash B. Pai obtained his BTech (Mechanical Engineering) from UBDT College of Engineering, Davangere. Currently pursuing his MTech (Mechatronics Engineering) at National Institute of Technology (NITK)-Surathkal. Presently, he is involved in the MR fluid based damper design and studying its applications in vibration damping in automobiles. His area of interests include: Vibration monitoring and its control, smart materials and their application in vibration control.

P. K. Tripathi, National Institute of Technology, Surathkal

Mr Prashant Kumar Tripathi received his MTech (Mechatronics) from National Institute of Technology, Karnataka, in 2012. His area of research is NVH simulations and testing for electrical drives and static, dynamic simulations for power tools. He is an active researcher in the field of NVH testing for Automobile Alternators and FEA Simulations with interface for transfer of electromagnetic forces.

K. V. Gangadharan, National Institute of Technology, Surathkal

Dr K.V. Gangadharan received his ME from NIT Trichy, in 1992; BTech (Mechanical Engineering) from Calicut University, in 1989 and PhD from IIT Madras in 2001. Currently working as a Professor in the Department of Mechanical Engineering, National Institute of Technology Surathkal, Karnataka. His areas of research are system design, vibration and its control, smart material and its applications in vibration control, dynamics, and finite element analysis, condition monitoring and experimental methods in vibration.