RT info:eu-repo/semantics/article
T1 Fractional viscoelastic models for the estimation of the frequency response of rubber bushings based on relaxation tests
A1 Calaf Chica, José
A1 Cea González, Víctor
A1 García Tárrago, María José
A1 Gómez Gil, Francisco Javier
K1 Viscoelasticity
K1 Rubber bushing
K1 Loss factor
K1 Dynamic stiffness
K1 Fractional derivative
K1 Ingeniería civil
K1 Civil engineering
K1 Ingeniería eléctrica
K1 Electric engineering
K1 Ingeniería mecánica
K1 Mechanical engineering
AB Estimation of the viscoelastic properties of rubber bushings at very high frequencies (up to 2 kHz) is a challengefor many damping component manufacturers in the design stage of a quality monitoring procedure. Thisinvestigation is focused on the capability of lower strain rate testing procedures, such as relaxation tests, toestimate and extrapolate the dynamic behavior of rubber bushings from low to moderate frequencies. FractionalZener models are employed to approach bushing behavior in experimental relaxation tests, thus leading toa linear viscoelastic model which is employed to estimate the dynamic behavior of rubber bushing underharmonics loads up to 150 Hz. The validation of this extrapolation procedure is performed by comparing theseanalytical results with experimental dynamic harmonic tests applied to the same rubber bushings. The deviationbetween both curves demonstrates that it is difficult to compare the behavior from very small deformation rates(relaxation tests) to higher deformation rates (harmonic dynamic tests) due to the nonlinear behavior of therubber and its amplitude dependence. However, this investigation demonstrates that the relaxation tests containenough data to define the frequency behavior of linear viscoelastic materials up to moderate frequencies
PB Elsevier
SN 2590-1230
YR 2023
FD 2023-10
LK http://hdl.handle.net/10259/8302
UL http://hdl.handle.net/10259/8302
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 12-may-2024