Pre-stressed rubber material constant estimation for resilient wheel application

0479531 - ÚT 2018 RIV NL eng J - Journal Article
Šulc, Petr - Pešek, Luděk - Bula, Vítězslav - Cibulka, Jan - Boháč, T. - Tašek, H.
Pre-stressed rubber material constant estimation for resilient wheel application.
Advances in Engineering Software. Roč. 113, November (2017), s. 76-83. ISSN 0965-9978. E-ISSN 1873-5339
Institutional support: RVO:61388998
Keywords : identification * rubber * viscous-elastic constant * pre-press * dynamic loading
OECD category: Applied mechanics
Impact factor: 3.198, year: 2017
https://www.sciencedirect.com/science/article/pii/S0965997816301922

This paper describes the mothodology and results of the complex modulus estimation of rubber segments pressed between the disk and the rim of a rubber-damped railway wheel. The solution comes out from the method proposed and validated at rubber constant identification on the case of the steel beam with rubber layer. In the vicinity of eigenfrequency its dependence to Young modulus is quasilinear and can be solved effectively by the gradient method. The similar behavior showed itself also for dependence of the modal damping constant on the damping coefficient. The ascertained results of tuned rubber material constants, i.e. the modulus of elasticity and a loss factor, of the rail rubber segments are very valuable for prediction of modal behavior of the new resilient wheels and they are qualitatively in accordance with the behaior of hard synthetic rubbers.
Permanent Link: http://hdl.handle.net/11104/0275660