Graduate School in Nonlinear Science

Sponsored by The Danish ResearchAgency

MIDIT                              OFD                          CATS
Modelling, Nonlinear Dynamics      Optics and Fluid Dynamics    Chaos and Turbulence Studies
and Irreversible Thermodynamics    Risø National Laboratory     Niels Bohr Institute and
Technical University of Denmark    Building 128                 Department of Chemistry
Building 321                       P.O. Box 49                  University of Copenhagen
DK-2800 Lyngby                     DK-4000 Roskilde             DK-2100 Copenhagen Ø
Denmark                            Denmark                      Denmark


by Frantisek Peterka, DrSc.
Institute of Thermomechanics,
The Academy of Sciences of the Czech Republic
Prague, Czech Republic

MIDIT-seminar 508

Friday, May 31, 2002, 14.00 h
at IMM, Bldg. 305, Room 130, DTU

Abstract: The Hertz and triangle models of soft impact, transition cross grazing bifurcation boundaries, weak and strong regimes of periodic impact motions, bifurcation diagrams, phase trajectories, basins of attraction, Poincare maps, negative clearances - static prestress of impacting bodies, transition into impactless motion.