System design for active vibration control of aerospace structures

Shankar, V and Nagaraja, BV and Balasubramaniam, R and Amruthashree, S and Muthaiah, Skanda N (2002) System design for active vibration control of aerospace structures. In: Conference on Smart Materials, Structures and Systems, 12-14 Dec 2002, Bangalore, India.

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Instrumentation, electronics, digital signal processing and related software form the basic building blocks of a system for implementation of Active Vibration Control (AVC) for smart aerospace structures. This paper essentially deals with the design, development and implementation of a 4 channel analog input sub-system essentially consisting of charge amplifiers, filters, gain amplifiers, and Analog to Digital Converters (ADC), the subsequent Digital Signal Processor (DSP) hardware for implementation of the controller and finally a 4 Channel analog output subsystem consisting of Digital to Analog Converters (DAC), reconstruction filters amp; high voltage amplifiers. This system essentially interfaces to a structure with piezo-ceramic sensors and actuators for implementation of real time AVC on a smart beam. The paper also highlights some of the new ideas that have been incorporated into the system design.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Aerospace systems;Smart structures;Vibration damping;Active control;Control systems design;Beams (supports); Piezoelectric actuators;Power amplifiers;Analog to digital converters;High voltages;Software development tools; Digital signal processing
Subjects: ENGINEERING > Mechanical Engineering
Depositing User: Mr. Ravikumar R
Date Deposited: 08 Sep 2006
Last Modified: 24 May 2010 04:20

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