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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Regions of subharmonic motions of the oscillator with Hertz's model of impact
 Peterka, František ; Čipera, S.
There were obtained new laws of dynamics of impact oscillators with soft impacts. They will be partially explained using oscillator with the Hertz model of soft impact. Special features of motion with soft impacts in the comparison with the motion with rigid impacts will be shown by the evaluation of regions of existence and basins of attraction of different subharmonic impact motions.
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Behaviour of mechanical model of piercing machine
 Peterka, František
Abstrakt:The dynamics of oscillators with soft impacts is a new direction in the investigation of strongly non-linear systems in the Institute of Thermomechanics. Notion 'soft' is used for an impact, the duration of which is impossible to neglect, unlthe 'rigid' impact described by the Newton elementary theory with coefficient of restitution. It signifies that there exist a large variety of mathematical models of soft impacts corresponding to every real practical situation, which should be invested. The numerical simulation of non-linear system dynamics is the most effective method for it.
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