by Sergej Kohl, Walter Sextro, Sebastian Schulze
Abstract:
Tire-wheel assembly is the only connection between road and vehicle. Contacting directly with road within postcard size of contact area, it is mounted and guided by the suspension system. Therefore kinematics and compliances of suspension system greatly influence the frictional coupling of tire tread elements and road surface asperities by affecting pressure and sliding velocity distribution in the contact zone. This study emphasizes the development of a numerical methodology for frictional rolling contact analysis with focus on interaction of suspension system dynamics and tire-road contact using ADAMS. For this purpose a comprehensive flexible multibody system of the multi-link rear suspension is established, where both flexible and rigid bodies are modeled to allow large displacements with included elastic effects. To meet accuracy requirements for the high frequency applications, such as road excitations, the amplitude- and frequency-dependency of rubber-metal bushings is included. Furthermore the proposed flexible viscoelastic suspension model is enhanced by a Flexible Ring Tire Model (FTire), which describes a 3D tire dynamic response and covers any road excitations by tread submodel connected to road surface model. Concerning the verification and validation procedure numerous experiments are carried out to confirm the validity and the accuracy of both the developed submodels and the entire model. The devised approach makes it possible to investigate the influence of suspension system design on dynamical rolling contact and to evaluate tire tread wear. Therefore it can be a useful tool to predict frictional power distribution within the contact area under more realistic conditions.
Reference:
Kohl, S.; Sextro, W.; Schulze, S.: Aspects of Flexible Viscoelastic Suspension Modeling for Frictional Rolling Contact Analysis using ADAMS. The 2nd International Conference on Automotive Innovation and Green Energy Vehicle (AiGEV 2016), Cyberjaya, Malaysia, 2016., 2016. (Preprint: https://groups.uni-paderborn.de/ldm/publications/download/Kohl2016_preprint.pdf)
Bibtex Entry:
@INPROCEEDINGS{Kohl2016_preprint,
author = {Kohl, Sergej and Sextro, Walter and Schulze, Sebastian},
title = {Aspects of Flexible Viscoelastic Suspension Modeling for Frictional
Rolling Contact Analysis using ADAMS},
booktitle = {The 2nd International Conference on Automotive Innovation and Green
Energy Vehicle (AiGEV 2016), Cyberjaya, Malaysia, 2016.},
year = {2016},
pages = {1-12},
address = {Cyberjaya, Malaysia, 2016},
abstract = {Tire-wheel assembly is the only connection between road and vehicle.
Contacting
directly with road within postcard size of contact area, it is mounted
and guided by the
suspension system. Therefore kinematics and compliances of suspension
system greatly
influence the frictional coupling of tire tread elements and road
surface asperities by
affecting pressure and sliding velocity distribution in the contact
zone. This study
emphasizes the development of a numerical methodology for frictional
rolling contact
analysis with focus on interaction of suspension system dynamics and
tire-road contact
using ADAMS. For this purpose a comprehensive flexible multibody system
of the
multi-link rear suspension is established, where both flexible and
rigid bodies are
modeled to allow large displacements with included elastic effects.
To meet accuracy
requirements for the high frequency applications, such as road excitations,
the
amplitude- and frequency-dependency of rubber-metal bushings is included.
Furthermore the proposed flexible viscoelastic suspension model is
enhanced by a
Flexible Ring Tire Model (FTire), which describes a 3D tire dynamic
response and
covers any road excitations by tread submodel connected to road surface
model.
Concerning the verification and validation procedure numerous experiments
are carried
out to confirm the validity and the accuracy of both the developed
submodels and the
entire model. The devised approach makes it possible to investigate
the influence of
suspension system design on dynamical rolling contact and to evaluate
tire tread wear.
Therefore it can be a useful tool to predict frictional power distribution
within the
contact area under more realistic conditions.},
comment = {Preprint: \url{https://groups.uni-paderborn.de/ldm/publications/download/Kohl2016_preprint.pdf}},
file = {Kohl2016_preprint.pdf:download\\Kohl2016_preprint.pdf:PDF},
keywords = {Kinematics and compliances; flexible viscoelastic suspension model;
frictional rolling contact analysis; frictional power distribution.},
owner = {ekubi},
timestamp = {2018.11.05}
}