Shape of a spectral excitation matrix for a linear road/tyre interaction numerical analysis
Shape of a spectral excitation matrix for a linear road/tyre interaction numerical analysis
Tyre/road interaction is recognized as the main source
of interior and exterior noise for velocities over 40 km/h.
The authors have proposed a linear stochastic
approach to predict the tyre vibrations due to the
road/tyre interaction. A mechanical model of the tyre
is connected to the road through a Winkler contact
model with all the springs in the contact patch assumed
to be in contact with the road at all the time. Such a
linear model is strictly valid for smooth road and soft
tyres. In this paper the authors investigate the range
of validity of the linearity assumption and they also
propose a modified shape of the excitation matrix
that takes into account the contact non-linearity. The
investigation is based on a numerical non-linear model
of a 2D tyre. The model consists of a rigid curved body
that touches the road through a Winkler model, in
which the number of the springs in contact and their
actual compression has been found through a quasistatic
equilibrium analysis.
Rustighi, E.
9544ced4-5057-4491-a45c-643873dfed96
Elliott, S.J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
2007
Rustighi, E.
9544ced4-5057-4491-a45c-643873dfed96
Elliott, S.J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Rustighi, E. and Elliott, S.J.
(2007)
Shape of a spectral excitation matrix for a linear road/tyre interaction numerical analysis.
Inter noise 2007: The 36th International Congress and Exhibition on Noise Control Engineering, Istanbul, Turkey.
27 - 30 Aug 2007.
10 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Tyre/road interaction is recognized as the main source
of interior and exterior noise for velocities over 40 km/h.
The authors have proposed a linear stochastic
approach to predict the tyre vibrations due to the
road/tyre interaction. A mechanical model of the tyre
is connected to the road through a Winkler contact
model with all the springs in the contact patch assumed
to be in contact with the road at all the time. Such a
linear model is strictly valid for smooth road and soft
tyres. In this paper the authors investigate the range
of validity of the linearity assumption and they also
propose a modified shape of the excitation matrix
that takes into account the contact non-linearity. The
investigation is based on a numerical non-linear model
of a 2D tyre. The model consists of a rigid curved body
that touches the road through a Winkler model, in
which the number of the springs in contact and their
actual compression has been found through a quasistatic
equilibrium analysis.
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Published date: 2007
Additional Information:
Paper 311
Venue - Dates:
Inter noise 2007: The 36th International Congress and Exhibition on Noise Control Engineering, Istanbul, Turkey, 2007-08-27 - 2007-08-30
Identifiers
Local EPrints ID: 49438
URI: http://eprints.soton.ac.uk/id/eprint/49438
PURE UUID: 76b3f714-363e-4c92-9045-1be598724cf3
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Date deposited: 13 Nov 2007
Last modified: 09 Jan 2022 03:17
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