Prenos vibracij preko prostorsko ukrivljenih jeklenih vrvi z oplaščenjem
The vibration over a spatially curved steel wire with an outer band

english
slovenian

2007

volume 53, issue 10

Univerza v Ljubljani, Fakulteta za strojništvo

This paper presents a study of the transmission of vibration over a spatially curved steel wire with an outer band. The physical model for the lateral vibrations of the steel wire and the outer band is based on the Euler-Bernoulli beam theory, with no axial preload. The dissipation of the energy is presented with two models: the viscous- and the structural-damping models. The frequency dependence of the dynamic modulus of elasticity is identified with an adaptive process. The vibration transmissibility was computed numerically on the basis of finite elements with the use of the Newmark integration scheme. The numerical model for the steel wire was validated experimentally. The penalty-contact model between the steel wire and the outer band was used. The numerical simulation for the influence of different gap values on the vibration transmission was made. The use of a mechanical filter to minimise vibration transmission is also demonstrated in numerical simulations.

16.09.2009