Vol.2, No 9, 1999 pp. 1009-1011
A Review of
the International European Conference
"EUROMECH - 3RD
EUROPEAN
NONLINEAR OSCILLATIONS
CONFERENCE"
Copenhagen -
Lyngby, August 8-12, 1999,
under the patronage
of HRH Princess Alexandra of Denmark
In the period from August 8th to 12th at the
Denmark Technical University (DTU) at Lyngby-Copenhagen an international
conference, "EUROMECH - 3rd EUROPEAN NONLINEAR OSCILLATIONS CONFERENCE"
Copenhagen - Lyngby, August 8-12, 1999 was held under the patronage of
HRH Princess Alexandra of Denmark.
The scientific and program committee was
constituted of world-rank scientists from all over the world, and the participants
of the conference were also from around the world, and among them were:
Professor Dr. F. Pfeiffer, from the Technical University in Munich. Germany
who was the representative of ENOC scientific committee, Academician F.
Chernousko from Moscow, Professor Guizeppe Rega from the University La
Sapienza, Rome, Professor F. Peterka, from Prague, Professor S.R. Bishop
from UCL, London, Professor H. Troger from Wiena, Professor E. Kreuzer
from Hamburg...
The president of the organizing committee
was Professor Hans True, Ph.D., (Chairman, EUROMECH Copenhagen 99, Technical
University of Denmark, MIDIT modeling, Nonlinear Dynamics and Irreversible
Thermodynamics, Building 305, DK 2800 LYNGBY, Tel: 45 45 25 33 51/ 45 45
25 30 16; Fax: 45 45 93 23 73, e-mail: hr@imm.dru.dk )
Mads Peter Soerensen, Ph. D., Assoc. Prof.
(Department of Mathematical Modeling (IMM), The Technical University of
Denmark (DTU), Bldg. 321, DK-2800 Lyngby, Denmark) a member of the ENOC
organizing committee, had shown remarkable care and hospitality towards
the participants and he had also shown extraordinary organizing skills
and due to that his efforts in the organizational part of the conference.
deserve to be specially recognized.
The scientific part of the conference
consisted of plenary lectures and sections.
In the plenary part the lectures had reviewing
character, and in the sections they were specialized. I will specially
pint out the ideas presented at the plenary by Prof. Ilia Blechman in the
aim to direct the research towards creating new types of dynamically active
materials for different purposes. On that occasion he invited researchers
that are interested to join him, and the invitation was especially addressed
to those interested in the area of motion control.
There were the following sections: Qualitative
methods, Applications in Physics, Chaotic oscillations, Discrete Systems,
Numerical methods, Continual systems, Stability, Nonlinear dynamical phenomena,
synchronization, applications in mechanical and structural engineering,
wave spreading, vehicle and train dynamics, bifurcation, control, impacts
and impulses, slow and fast oscillations, friction and cutting, fluid dynamics
and aerodynamics, interaction of fluid structures, random oscillations,
computer shaping and symbolical methods, applications in biology, medicine
and chemistry, Chaotic oscillations.
At the opening, rector of DTU held a speech
in which he acquainted the participants with the history of DTU and its
work. He was followed by Prof. F. Pfeiffer form TUM, who spoke in the name
of the European society for mechanics. He talked about the first conferences
on nonlinear oscillations, the first of which was held in Kiev, Ukraine,
and was organized by academician Yu. A. Mitropol'ski.
The following publications were distributed
to the participants: the Congress Proceedings, Address-book with a list
of the congress participants, Conference work plan as well as a number
of maps of Copnehagen, Lyngby and DTU, as well as a number of publications
for tourists.
The data about ENOC Lyngby – Copenhagen
99 can be found at the Internet address: http://www.midit.dtu.dk.
If we have to evaluate the scientific
program of the meeting than the evaluation is positive since there were
many new and original lectures, as well as reviews lectures in the area
of nonlinear oscillations. The conference was very successful. However,
if we have in mind that the international conference Nonlinear Mechanics
98 was held in Shangai last year as well as the International Conference
"Nonlinear sciences on the border of millenniums" dedicated to the 275th
anniversary of the Russian Academy of Sciences, Saint-Petersburg, June
22-24, 1999, in Saint Petersburg some twenty days earlier, the comparison
between those meeting can not be avoided, as well as with previous meetings
ICNO, starting since 1969, which were before ENOC. But at the same time
it needs to be pointed out that ENOC 99 had more results of application
of experimental results and results based on numerical simulations done
through the use of computer technology. That is mainly a characteristic
of scientific meetings organized by scientists from Western European countries
and from the American continent. They, pressurized by the system of research
funding, give advantage to more success in experimental results, in the
contrary to those organized by scientists from China and Russia which contain
mathematical and theoretical results on the much higher theoretical and
scientific level and with more theoretical originality.
I could not help the feeling that in the
area of nonlinear sciences, many leading scientific minds from Russia work
for the western-European institutes, and that the leading publishers of
scientific literature from countries of Western Europe and the American
continent have bought the rights to publish their scientific results, which
were obtained at scientific institutes of countries of the former USSR
in the period of half a century.
If we compare the results of our scientists
published at the Congresses of the Yugoslav society for Mechanics, as well
as the papers of our scientists and researchers working on the republic
subproject "Current problems of Mechanics and Applications", at the Mathematical
Institute of SASA, Belgrade with the results of researchers from around
the world in proper field of research, I think that they do not fall behind.
This needs to be pointed out because our researchers are achieving that
in conditions where our libraries the newest scientific magazines and monographs,
and in the conditions of a general blockade that is imposed upon Yugoslavia,
and hence on its researchers. The researchers are managing to keep the
pace with the world scientific progress by using their personal contacts
and the care of their colleges-scientists from abroad do get to the latest
scientific information in this area.
Out of Yugoslav scientists this conference
was attended by Katica (Stevanović) Hedrih with papers:
C: Vectorial Method, Mass Moments
Vectors and Rotator Vectors in Nonlinear Heavy Gyrorotor Dynamics and
A: Rheonomic Coordinate Method Applied
to Nonlinear Vibration Systems with Hereditary Elements.
At the exposition desk of Kluwer Academic
Publishers, a large number of latest scientific publications was exposed
out of which I would like to pint out to the following:
* IUTAM SYMPOSIUM ON NEW APPLICATIONS
OF NONLINEAR AND CHAOTIC DYNAMICS IN MECHANICS Editted by Francis C. Moon,
pp.562;
* IUTAM SYMPOSIUM ON ADVANCES IN NONLINEAR
STOCHASTIC MECHANICS, edited by A. Nacss and S. Krenk, Norwey 1995; pp.513;
* Andre Preumont: Vibration Control of
Active Structures, 1997, pp. 260;
* Andre Preumont: Random Vibration and
Spectral Analysis, 1994, pp. 280.
Also, the latest catalogues Kluwer Academic
Publishers should be added to the above list:
* Nonlinear Dynamics, April 1999;
* Multibody System Dynamics, May 1999;
* Dynamics and Control, April 1999.
* Journal of Intelligent and Robotics
Systems, Theory and Applications, may 1999.
* Meccanica, An international Journal
of the Italian Association of Theoretical and applied Mechanics, Feb. 1999.
* Mechanics and Materials; * Engineering;
Reviewing the state of nonlinear sciences
in our country, the following suggestions appear for the advancement of
research in this area in our country:
1. The foundation of the Yugoslav center
for nonlinear dynamics where research results would be integrated and where
the transfer of knowledge in the area of nonlinear dynamics and its application
to different areas of science and applications (mechanics, engineering,
mechanical engineering, building technology, electronics, biology, medicine,
economy, social processes, linguistics) would be conducted.
2. The financing of the work of a republic
scientific seminar in nonlinear dynamics on which guest scientists from
abroad would be invited.
3. The foundation of a laboratory for
nonlinear dynamics and modeling for research in active constructions oscillations
control at the Mechanical Engineering Faculty in Nis.
4. The purchase of fundamental monographs
and scientific journals in the area of nonlinear mechanics which are published
in the world in the last decade, because our libraries lack them.
Possible practical solutions on the basis
of knowledge in nonlinear mechanics:
The creation of technologies on the basis
of nonlinear phenomena, effects of fast and slow oscillations, under the
conditions of friction. The contraction of active constructions the oscillations
of which are controlled. The creation of a series of products - vibrational
mining machines, civil engineering and process technologies. The creation
of new types of so-called dynamically active materials for different purposes.
Katica (Stevanović) Hedrih
