Browsing by Author "Bandopadhya, Dibakar"

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    Estimation of bending resistance of ionic polymer metal composite (IPMC) actuator following variable parameters pseudo-rigid body model
    (Elsevier Science B.V., Amsterdam., 2012-08-31) Bandopadhya, Dibakar; Njuguna, James A. K.
    In this article bending resistance of IPMC has been estimated following a newly proposed variable parameters pseudo-rigid body model. First an experiment is conducted to study the voltage versus bending characteristics of IPMC and based on the experimental data the IPMC has been modeled through the proposed technique. Simulation has been performed and estimation of bending resistance has been made based on experimental results. It is observed that bending resistance of IPMC increases with input voltages although the changes remain insignificant after certain range. (c) 2009 Elsevier B.V. All rights reserved.
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    A study on the effects of Kalman Filter on performance of IPMC-Based Active Vibration Control Scheme
    (Institute of Electrical and Electronics Engineers, 2010-11-30T00:00:00Z) Bandopadhya, Dibakar; Njuguna, James A. K.
    This paper evaluates the effectiveness and performance of Ionic Polymer Metal Composite (IPMC) based active vibration control scheme equipped with the Kalman estimation algorithm. To assess the vibration attenuation efficiency, a rotating flexible manipulator has been modelled integrating two IPMC actuators following the modal approach. The elastic displacements as generalized coordinates for estimating optimal performance is carried out next by discretizing the elastic motion through the assumed mode technique and applying the Kalman filter. Simulations are then performed to demonstrate effective vibration attenuation using both IPMC and the Kalman filter. Kalman filter is employed for the whole vibrating system taking into account of the bending moment generated by the IPMC actuator. Experiment is conducted for the proposed damping scheme and the results are compared and verified with the simulation results.