Spectral Non-Stationarity in Road Vehicle Vibrations

Authors

  • László Róbert Hári ORCID
    Affiliation

    Department of Logistics and Forwarding, Audi Hungaria Faculty of Automotive Engineering, Széchenyi István University, Egyetem tér 1., H-9026 Győr, Hungary

https://doi.org/10.3311/PPtr.18318

Abstract

Road-induced vibrations are in the scope of various environmental testing protocols, e.g., for packaging vibration testing (PVT) purposes. This field matures with well-understood methods for analyzing amplitude-type non-stationarity (NS) in road vehicle vibrations (RVV). Albeit frequency-type NS is well known, only suggestions are provided for processing the phenomenon in PVT. Both types of NS can be jointly investigated in the time-frequency domain; thus, the current study initiates the investigation of spectral non-stationarities (SNS) in RVV. Three vibration series were recorded from 118 km traveled distance supplying an empirical insight.

Keywords:

changepoint-detection, reverse arrangements test, road vehicle vibration, spectral moments, spectral non-stationarity

Published Online

2022-11-16

How to Cite

Hári, L. R. (2023) “Spectral Non-Stationarity in Road Vehicle Vibrations”, Periodica Polytechnica Transportation Engineering, 51(1), pp. 79–88. https://doi.org/10.3311/PPtr.18318

Issue

Section

Articles