2007-10-29
Announcement of CISM Course No. 329: Advanced Nonlinear Strategies For Vibration Mitigation And System Identification June 16-20, 2008, CISM, Udine, Italy
Advanced methodologies and techniques for analyzing strongly nonlinear
systems subjected to transient loads will be discussed, and ways of
interpreting complex, multi-frequency transitions in damped nonlinear
structural responses will be provided. Recently developed techniques for
passive vibration mitigation by means of targeted energy transfer (TET) in
coupled oscillators will be discussed, leading to a new paradigm for
vibration and shock mitigation. This discussion will include the concept of
passive nonlinear energy sink (NES) for vibration mitigation, and the
discussion of designs of NESs to act as passive broadband boundary
controllers. This will be followed by an outline of strategies for
experimentally studying passive TET in dynamical systems, and a presentation
of issues related to the design and construction of practical NESs.
Nonlinear vibration / shock mitigation is closely tied to reliable nonlinear
system identification of the dynamics. An overview and assessment of current
nonlinear system identification techniques will be given, followed by a
discussion of their use for modeling nonlinear engineering structures,
together with a discussion of the concept of nonlinear normal modes and
their application to system identification. This will lead to a presentation
of advanced computational methods for nonlinear system identification and
signal analysis, combining tools such as Wavelet Transforms, Empirical Mode
Decomposition, Proper Orthogonal Decomposition, and Complexification -
Averaging. Applications of TET to practical problems, including seismic
mitigation, vibration and shock isolation, drill-string instability
suppression, and passive suppression of aeroelastic instabilities will be
presented.
Lecturers
Alexander F. Vakakis (Coordinator - 6 lectures), National Technical
University of Athens Lawrence A. Bergman (6 lectures), University of
Illinois at Urbana - Champaign D. Michael McFarland (6 lectures), University
of Illinois at Urbana - Champaign Leonid Manevitch (6 lectures), Institute
of Chemical Physics, Russian Academy of Sciences Oleg Gendelman (6
lectures), Technion - Israel Institute of Technology Gaetan Kerschen (6
lectures), University of Liege
To get a flyer with more details of this course, please contact Prof. A.
Vakakis at vakakis@central.ntua.gr
For further information please contact:
CISM
Palazzo del Torso - Piazza Garibaldi 18
33100 Udine, Italy
Tel. +39 0432 248511 (6 lines)
fax +39 0432 248550
e-mail: cism@cism.it
http://www.cism.it
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