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Evaluation of a driver’s seat’s dynamic properties

Kohl O., Pesik L.

Zeszyty Naukowe. Transport / Politechnika Śląska

2016

z. 91

59--69

The springing support in a driver’s seat is a very serious issue, such that manufacturers are increasing their efforts to optimize the dynamic properties of this kind of seat. The main optimization criterion is vibration insulation efficiency with regard to health research and associated health standards and regulations. This article deals with the definition of the optimal driver’s seat properties in relation to two examples of springing systems with different kinds of damping. The first case involves the springing support of a driver’s seat that uses a pneumatic spring and a telescopic hydraulic damper. In the second case, the damping effect is achieved by two pneumatic springs whose forces effect a phase shift due to a throttle valve located in the connecting piping system.

Elimination of mechanical vibration with the use of resonance-type vibration eliminators

Golec Z., Golec M.

Vibrations in Physical Systems

2008

Vol. 23

139--144

The paper is devoted to analysis of effectiveness of vibration reduction with the use of resonance-type vibration eliminators, viz. the frictional and viscous-type ones. Their usefulness for vibration minimization in the extra-resonance range has been shown. The resonance-type eliminators, i.e. the frictional and viscous-type ones, are distinguished by similar ability to reduce vibration. Nevertheless, effectiveness of vibration elimination of these eliminators is lower as compared to the effect achieved by increasing the mass of the protected system.

Ochrona wibroakustyczna załogi motorowych jachtów morskich z silnikiem stacjonarnym

Gardulski J.

Problemy Eksploatacji

2008

nr 1

161-170

W artykule omówiono pasywne i aktywne metody minimalizacji drgań i hałasu generowanych przez układ napędowy jachtu i jego agregaty pomocnicze. Zdefiniowano podstawowe właściwości wymienionych układów mechanicznych, zwracając uwagę na generowane częstotliwości podstawowe tych źródeł. W drugiej części opisano pasywne i czynne metody minimalizacji hałasu poprzez ingerencję w drogę propagacji. W podsumowaniu podano przewidywane efekty.

In this paper are discusted minimalization methods - both passive and active - which are generated by powertrainsystem and its supporting items. The basic properties of mechanical system are defined, frequencies generated by this sources are also included. In second part are given passive and active methods of minimalization methods which interfere with propagate way. Anticipate effects of this methods are given in summary.