Analysis of unimorph piezoceramic patches on damped square shaped plate

Mohd Najib , Ali Mokhtar and Fairul Azni, Jafar and Ahmad Yusairi, Bani Hashim and Hazman, Hasib and Mohd Nazrin, Muhammad (2013) Analysis of unimorph piezoceramic patches on damped square shaped plate. Applied Mechanics and Materials, 315. pp. 965-971. ISSN 1660-9336

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Active damping using piezoelectric element is one of the effective techniques to counter vibration problems. A 3D finite-element model is developed as part of investigation for damping control. The piezoelectric patches are surface bonded on quadrilateral thin plate and supported with spring damper elements. The main goal of this paper is to investigate mechanical characteristics of piezoceramic array on membrane and the effect of force excitation using small motor and electric excitation on the system. The system setup produced small vibration displacement and does not displace the plate beyond elastic strain region. The results show the linear behavior of piezoceramic and the correlation between electric excitation, motor vibration and displacement at the centre of the plate at different frequency range. The mode shapes and natural frequencies at low frequency spectrum are also presented. Therefore, the results can be used as reference to develop damping system with aid of piezoelectric patches.

Item Type: Article
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Manufacturing Engineering > Department of Robotics and Automation
Date Deposited: 27 Apr 2013 05:53
Last Modified: 28 May 2015 03:49
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