RT Journal Article
SR Electronic
A1 Segľa, Štefan
A1 Orečný, Martin
A1 Trišović, Nataša
T1 Passive Seat Suspension With a Vibration Absorber
JF Manufacturing Technology Journal
YR 2013
VO 13
IS 4
SP 530
OP 534
DO 10.21062/ujep/x.2013/a/1213-2489/MT/13/4/530
UL https://journalmt.com/artkey/mft-201304-0021.php
AB The paper deals with modelling and optimization of a working machine seat suspension system parameters. Experimental work in the past shown that it is possible to replace even more complicated, for example parallelogram or scissor mechanisms, with simpler dynamic models of 1 or 1.5 degree of freedom (Zener model). The optimization of stiffness and damping parameters is realized using multiobjective function. The first component of the function expresses the acceleration of the seat squab, this points on the comfort of the seat, the second one expresses the relative displacement of the seat squab in regard to the working machine cabin, points on the better operator's sightedness and safe handling of the machine. This optimization process allows to propose so called "soft", "medium", or "hard" seat suspensions according to the value of the weighting coefficient. The paper also points on the possibility of improving the dynamic characteritics of the seat with the use of a vibration absorber. The expediency of its application is especially in working machines without significant changes in the seat excitation frequency spectrum.