Spectral Non-Stationarity in Road Vehicle Vibrations
Authors
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László Róbert Hári
AffiliationDepartment of Logistics and Forwarding, Audi Hungaria Faculty of Automotive Engineering, Széchenyi István University, Egyetem tér 1., H-9026 Győr, Hungary
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-stationarityCitation data from Crossref and Scopus
