Nonlinear vibration of semitrailer suspension: wavelet and multiscale entropy-based approaches

G. Koszalka (1) , J. Hunicz (1) , A. Rysak (1) , G. Litak (1, 2)

1 Lublin University of Technology
2 LGEF - Laboratoire de Génie Electrique et Ferroélectricité

We examine the dynamical response of a semitrailer suspension to a real road profile under two different loads. The trailer is a low loader for transporting heavy and large loads, the configuration of which can be adjusted as desired. Experiments are performed on both unladen and 57-ton laden trailers. The acceleration of unsprung and sprung parts of the vehicle is measured. The obtained acceleration time series are then analyzed using the Fourier and wavelet transforms as well as the multiscale entropy approach. The data analysis results reveal transmission of suspension vibration and complexity of vehicle vertical acceleration as a response to the road profile. © 2015, The Author(s).

Mots clés: Amphibious vehicles; Automobile suspensions; Entropy; Fourier series; Magnetic levitation vehicles; Roads and streets; Vehicle suspensions; Vehicle transmissions; Wavelets; Vertical accelerations; Vibration analysis; Vehicles; Vibrations (mechanical); Wavelet transforms; Acceleration time series; Dynamical response; Multi-scale entropies; Non-linear vibrations; Road profile; Suspension dynamics

Domaines: Sciences de l'ingénieur [physics]

G. Koszalka, J. Hunicz, A. Rysak, G. Litak. Nonlinear vibration of semitrailer suspension: wavelet and multiscale entropy-based approaches. Archive of Applied Mechanics, 2016, 86 (4), pp.761-768. ⟨10.1007/s00419-015-1060-1⟩. ⟨hal-01769143⟩