Simulation assessment of the half-power bandwidth method in testing shock absorbers

The work deals with usability of the half-power bandwidth method in the diagnostic testing of automotive shock absorbers. In all the simulation tests, the front and rear suspension system of a present-day medium-classmotor car was considered. At the first stage, calculations were made in the frequen...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Lozia Zbigniew, Zdanowicz Piotr
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2020
Materias:	suspension damping coefficient peak-picking method Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/7460518c1d414387a00b329d2cf7375e
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:7460518c1d414387a00b329d2cf7375e
record_format	dspace
spelling	oai:doaj.org-article:7460518c1d414387a00b329d2cf7375e2021-12-05T14:10:46ZSimulation assessment of the half-power bandwidth method in testing shock absorbers2391-543910.1515/eng-2021-0011https://doaj.org/article/7460518c1d414387a00b329d2cf7375e2020-12-01T00:00:00Zhttps://doi.org/10.1515/eng-2021-0011https://doaj.org/toc/2391-5439The work deals with usability of the half-power bandwidth method in the diagnostic testing of automotive shock absorbers. In all the simulation tests, the front and rear suspension system of a present-day medium-classmotor car was considered. At the first stage, calculations were made in the frequency domain for a linear “quarter-car” model with two degrees of freedom; then, simulations were carried out in the time domain with using a similar but strongly nonlinear model. In the latter case, actual characteristics (corresponding to those obtained from test rig measurements) of shock absorber damping, suspension and tire elasticity, sliding friction in the suspension, and “wheel hop” were considered. The calculations were carried out every time for twelve levels of viscous damping in the suspension system, which made 48 calculation series in total. The factors of gain in the vertical force between the tester’s vibration plate and the vehicle tire (relative to the input force applied) and the dimensionless coefficients of viscous damping in the suspension system, determined by the half-power bandwidth method, were thoroughly analyzed. The calculation results were presented in graphical form. Attention was also paid to the distortions caused by the force of inertia of the tester’s vibration plate.Lozia ZbigniewZdanowicz PiotrDe Gruyterarticlesuspensiondamping coefficientpeak-picking methodEngineering (General). Civil engineering (General)TA1-2040ENOpen Engineering, Vol 11, Iss 1, Pp 120-129 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	suspension damping coefficient peak-picking method Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	suspension damping coefficient peak-picking method Engineering (General). Civil engineering (General) TA1-2040 Lozia Zbigniew Zdanowicz Piotr Simulation assessment of the half-power bandwidth method in testing shock absorbers
description	The work deals with usability of the half-power bandwidth method in the diagnostic testing of automotive shock absorbers. In all the simulation tests, the front and rear suspension system of a present-day medium-classmotor car was considered. At the first stage, calculations were made in the frequency domain for a linear “quarter-car” model with two degrees of freedom; then, simulations were carried out in the time domain with using a similar but strongly nonlinear model. In the latter case, actual characteristics (corresponding to those obtained from test rig measurements) of shock absorber damping, suspension and tire elasticity, sliding friction in the suspension, and “wheel hop” were considered. The calculations were carried out every time for twelve levels of viscous damping in the suspension system, which made 48 calculation series in total. The factors of gain in the vertical force between the tester’s vibration plate and the vehicle tire (relative to the input force applied) and the dimensionless coefficients of viscous damping in the suspension system, determined by the half-power bandwidth method, were thoroughly analyzed. The calculation results were presented in graphical form. Attention was also paid to the distortions caused by the force of inertia of the tester’s vibration plate.
format	article
author	Lozia Zbigniew Zdanowicz Piotr
author_facet	Lozia Zbigniew Zdanowicz Piotr
author_sort	Lozia Zbigniew
title	Simulation assessment of the half-power bandwidth method in testing shock absorbers
title_short	Simulation assessment of the half-power bandwidth method in testing shock absorbers
title_full	Simulation assessment of the half-power bandwidth method in testing shock absorbers
title_fullStr	Simulation assessment of the half-power bandwidth method in testing shock absorbers
title_full_unstemmed	Simulation assessment of the half-power bandwidth method in testing shock absorbers
title_sort	simulation assessment of the half-power bandwidth method in testing shock absorbers
publisher	De Gruyter
publishDate	2020
url	https://doaj.org/article/7460518c1d414387a00b329d2cf7375e
work_keys_str_mv	AT loziazbigniew simulationassessmentofthehalfpowerbandwidthmethodintestingshockabsorbers AT zdanowiczpiotr simulationassessmentofthehalfpowerbandwidthmethodintestingshockabsorbers
_version_	1718371729547460608

Simulation assessment of the half-power bandwidth method in testing shock absorbers

Ejemplares similares