Spectral Non-Stationarity in Road Vehicle Vibrations

Q2 Engineering

Periodica Polytechnica Transportation Engineering Pub Date : 2022-10-27 DOI:10.3311/pptr.18318

L. Hári

引用次数: 0

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.

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道路车辆振动的谱非平稳性

道路引起的振动属于各种环境测试协议的范围，例如，用于包装振动测试（PVT）目的。该领域随着分析道路车辆振动（RVV）中振幅型非平稳性（NS）的众所周知的方法而成熟。尽管频率类型NS是众所周知的，但只提供了处理PVT中现象的建议。这两种类型的NS可以在时间-频率域中联合研究；因此，本研究启动了RVV光谱非平稳性（SNS）的研究。从118公里的行进距离记录了三个振动序列，提供了经验见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Periodica Polytechnica Transportation Engineering Engineering-Automotive Engineering

CiteScore

2.60

自引率

0.00%

发文量

期刊介绍： Periodica Polytechnica is a publisher of the Budapest University of Technology and Economics. It publishes seven international journals (Architecture, Chemical Engineering, Civil Engineering, Electrical Engineering, Mechanical Engineering, Social and Management Sciences, Transportation Engineering). The journals have free electronic versions.