Zdrojový dokument:Scientific papers of the University of Pardubice. Series B, Jan Perner Transport Faculty. 19/2014
ISSN:1211-6610
Abstrakt:
This paper deals with possibility of modification of lateral stiffness of flexi-coil springs by
means of rubber-metal tilting pads. On basis of the Gross’ calculation of lateral stiffness of a flexicoul
spring, a modified calculation of lateral stiffness of a flexi-coil spring equipped with a tilting pad
is derived. Besides to the analytical calculation of the lateral stiffness of the assembly spring–pad
for constant value of angular stiffness of the pad, a numerical method of the calculation, which allows considering of non-linear characterictics of the pad, is proposed. In the next part of the paper, the calculated lateral stiffness of the spring with pad is compared with results of measurement performed for several loading states on a test stand in heavy laboratories of the Jan Perner Transport Faculty. The experimental verification shows that the proposed calculation describes the trends in lateral stiffness behaviour very good; however, it seems to be necessary to perform some further improvements because the absolute values of the measured and calculated stiffnesses show certain deviations.