Plenary Lecture

The New Intensity of Acoustic Radiation (IAR) Parameter in the Mechanical Emissions of Machinery

Professor Lamberto Tronchin
DIENCA - CIARM
University of Bologna
Italy
E-mail: Lamberto.tronchin@unibo.it

Abstract: The noise and vibration provoked by machinery in mechanical industries could be studied and controlled by means of different survey methods which could be utilised to determine the amount and origin of vibrations and noise. However, these methods often do not properly consider the relation between vibration and noise generation. The sound intensity techniques consider only sound generation, whilst the acoustic radiation analyses only sound origins but do not relate these noises with mechanical vibrations.
The new IAR (Intensity of Acoustic Radiation) parameter, on the other hand, is able to determine the relation between vibrations and sound emission. In these lecture the new IAR parameter is defined and experimentally measured in several mechanical cases, from transportation vehicles utilised in manufacturing industries, to complex compressors utilised in fuel distributions. The IAR parameter is compared with other conventional techniques, as sound power measurements and modal analysis, and finally the most relevant results are analysed and comments.

Brief Biography of the Speaker: Dr. Lamberto Tronchin is Associate Professor in Environmental Physics from the University of Bologna and is recognised internationally as a leading authority on the subject of sound and acoustics. A pianist himself, with a diploma in piano from the Conservatory of Reggio Emilia, Dr Tronchin's principal area of research has been musical acoustics, room acoustics and signal processing. He is the author of more than 160 papers and was Chair of the Musical Acoustics Group of the Italian Association of Acoustics from 2000 to 2008. Dr Tronchin is a member of the Scientific Committee of the CIARM, the Inter- University Centre of Acoustics and Musical research, has chaired sessions of architectural and musical acoustics during several international symposiums, been a referee for a number of International journals and is Chair of Organising and Scientific Committees of IACMA (International Advanced Course on Musical Acoustics).
He was a visiting researcher at the University of Kobe in Japan, a visiting professor at the University of Graz in Austria and Special honored International Guest at the International Workshop, ‘Analysis, Synthesis and Perception of Music Signals', at Jadavpur University of Kolkata, India in 2005. He has chaired the International Advanced Course on Musical Acoustics (IACMA), organised with the European Association of Acoustics, which was held in Bologna, in 2005. In 2008 and 2009 he gave plenary lectures at International Congresses on Acoustics in Vancouver, Prague, Bucharest, Santander. He designed theatres and other buildings, as acoustic consultant, in collaboration with several Architects, among them Richard Meier and Paolo Portoghesi.