Burd V.Sh., Krupenin V.L. «Almost periodic oscillations in vibroimpact systems» Вестник научно-технического развития, № 3, http://www.vntr.ru/ftpgetfile.php?id=47 (2007)

The presence at anyone vibroimpact system large nonlinear positional forces – it is a reason of clear manifestation in them of various nonlinear effects. Inception of almost-periodic processes – it is one from major and also important such effects and these effect is studied. We have two base models there: resonant systems with one degree of freedom and some systems with the distributed impact elements are considered.

Krupenin V.L. «Vibroimpact processes in systems with the large number impact pairs and distributed impact elements» Вестник научно-технического развития, № 4, http://www.vntr.ru/nomera/2007-4 (2007)

The dynamic effects are considered and described, caused by different wavy conditions in discrete and distributed vibroimpact systems. We examine such systems in some cases when we have multiple collisions of subsystems or when the sizes of objects are those that it is necessary to consider wave processes occurring in colliding pairs. Such as, for example, different mechanical objects, which elements suffer impacts; various extended constructions, vibrating near pointwise, gridwork and continuous movement obstacles; vibroconductive and vibroarresting constructions, equipped with facilities with solitary and multiple breaks, etc. Original calculation methods are presented, based on the frequency-time analysis and other methods of the modern nonlinear mechanics. Multiple nonlinear effects are theoretically described, which are related to the formation of specific nonlinear waves with trapezoid profiles; advent of localizations of intensive impacts in some areas of constructions; generation of higher harmonic components; generation of non-synchronic and chaotic movements, etc.. This paper is a trial of a brief review.

Krupenin V.L. «To the calculation of pseudo-conservative self-oscillation vibraimpact systems» Вестник научно-технического развития, № 12, с. 32-33 (2010)

A class of models of self-oscillated vibration (in particular) systems allowing periodic motions accompanied by mutual compensation of excitation and dissipation forces, is considered. The models allow analysis of certain types of shock vibration systems absolutely flexible filaments, and longitudinally vibrating bars excited by the so-called "negative" friction. A technique for calculating a self-excited vibration machine whose model belongs to the above class, is presented.