Plenary Lecture

On the eigenvalues optimization of beams with damping patches



Professor Veturia Chiroiu
Department of Deformable Media
Institute of Solid Mechanics
Ctin Mille 15, P O Box 1-863, Bucharest 010141
ROMANIA
E-mail: veturiachiroiu@yahoo.com
Web site: http://www.imsar.ro

Abstract: The paper discusses the behavior of beams with external nonlocal damping patches. Unlike ordinary local damping models, the nonlocal damping force is modeled as a weighted average of the velocity field over the spatial domain, determined by a kernel function based on distance measures. The performance with respect to eigenvalues is discussed in order to avoid resonance. The optimization is performed by determining the location of patches from maximizing eigenvalues or gap between them.


Brief Biography of the Speaker: Veturia Chiroiu (born in 1942) received the PhD degree in Mathematics from University of Bucharest in 1981. Since 1966 she is a senior scientific researcher at the Institute of Solid Mechanics of the Romanian Academy, head of Department of Deformable Media (www.imsar.ro). She received a Fulbright Fellowship to work at the Princeton University, Dept. of Aerospace and Mechanical Science (1972–1973), and has led various research projects (Copernicus, NATO) and lectured in foreign institutes and universities. She is author of numerous research articles in referee journals and international conferences, covering dynamics of deformable media, acoustics, intelligent structures and materials, and inverse problems. She is the winner of the prize Aurel Vlaicu of the Romanian Academy in 1997. Since 2000 she is a PhD advisor in the field of mechanical engineering at the Romanian Academy. Since 2004 she is an Honorific Member of the Technical Sciences Academy of Romania (ASTR).