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  5. Resonans vibrations of specialized semi-trailers with the upgraded system and their coupling with the towing vehicle

Resonans vibrations of specialized semi-trailers with the upgraded system and their coupling with the towing vehicle

A. Zvonko, М. Sokil, R. Nanivskuu, А. Dzuba
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The system tractor-semitrailer asked to use the upgraded clutch system, characterized by stabilizing factor. Its main purpose to reduce the amplitude of transverse angular oscillation semitrailer. It also leads to the fact that the frequency of oscillation of the sprung semitrailer growing. Moreover, the latter depends on the amplitude, because stabilization time described by a nonlinear function of deformation of elastic elements. It is shown that the natural frequency of cross - angular oscillation of the sprung semitrailer in case of progressive law changes given moment is greater for larger values of amplitude transverse angular oscillation and vice versa – for its regressive law changes. Regarding the case of the most dangerous operation of tractor-semitrailer - resonance is: amplitude entry in response to the progressive changes since the law stabilization for higher speeds are less regressive law and to change it – more; for more stringent performance since the stabilization amplitude resonance passage is less.
Keywords: semitrailer, semi-sprung mass, resonance, transverse angular oscillation, springs system, resistance movement