** 2007年3月31日(土) at 京都大学 桂キャンパス 
[[KiDS]]

講演者: [[Prof. Marian Wiercigroch (College of Physical Sciences, University of Aberdeen):http://wwwcad.eng.abdn.ac.uk/~eng373/]]
決定次第、掲載します。

題目: Dynamics of Non-smooth Systems

抄録: In this lecture I will introduce and discuss a practically important concept of non-smoothness where a dynamical system can be considered as smooth in a finite size subspace of global hyperspace. Global solution is generated by matching local solutions obtained by standard methods. 
To illustrate the non-smooth dynamical systems and the methodology of solving them, two mechanical engineering systems will be presented. Firstly a vibro-impact system will be analysed to understand its performance can be maximised. Periodic trajectories can be reconstructed as they go through three linear subspaces. 
The second problem comes from rotordynamics, where understanding of intermittent interactions between the rotor and the snubber ring are studied. The results obtained from the developed mathematical model confronted with the experiment have shown a good degree of correlation. The lecture will close with the latest results on the new archetypal oscillator allowing to study transitions from smooth to discontinuous dynamics.
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