Example Utilization of Truck Tire Characteristics Data in Vehicle Dynamics Simulations

1998 ◽  
Author(s):  
Robert J. Burke ◽  
John D. Robertson ◽  
Michael W. Sayers ◽  
Marion G. Pottinger
Keyword(s):  
Vehicle Dynamics ◽  
Truck Tire ◽  
Dynamics Simulations

A Free-Rolling Cornering Test for Heavy-Duty Truck Tires

1996 ◽  
Vol 24 (2) ◽  
pp. 153-180 ◽  
Author(s):  
M. G. Pottinger ◽  
W. Pelz ◽  
G. A. Tapia ◽  
C. B. Winkler
Keyword(s):  
Vehicle Dynamics ◽  
Task Force ◽  
Test Procedure ◽  
Heavy Duty ◽  
Heavy Duty Truck ◽  
Truck Tire ◽  
Truck Tires ◽  
Background Data ◽  
Dynamics Simulations ◽  
Future Work

Abstract Under the guidance of the SAE Truck Tire Characteristics Task Force, the background to support the creation of a recommended practice for experimentally determining the free-rolling cornering properties of heavy-duty truck tires has been developed. The value of such a recommended practice lies in the establishment of a broadly accepted procedure for obtaining the free-rolling cornering data needed to represent tires in vehicle dynamics simulations of commercial trucks. This paper presents the proposed test procedure and background data. It contains a summary of the proposed test procedure, example data from CALSPAN and UMTRI using the proposed procedure, a statistical comparison of the data from CALSPAN and UMTRI, a discussion of the effect of inflation pressure on the data, a discussion of how the proposed test affects tire cornering properties and tread surface topography, and a look at the projected future work of the task force.

Numerical Procedure for Non-Hertzian Wheel-Rail Contact Model Integrated in Quasi-Steady Railway Vehicle Motion Solver

2020 ◽  
Author(s):  
Takayuki Tanaka ◽  
Hiroyuki Sugiyama
Keyword(s):  
Vehicle Dynamics ◽  
Numerical Procedure ◽  
Contact Model ◽  
Hertzian Contact ◽  
Railway Vehicle ◽  
Long Distance ◽  
Elliptical Contact ◽  
Vehicle Motion ◽  
Contact Shape ◽  
Dynamics Simulations

Abstract Although the Hertzian contact theory is widely utilized in railway vehicle simulations with new wheel and rail profiles, the Hertzian contact assumptions would lead to inaccurate contact prediction for severely worn wheel and rail profiles due to their geometric conformity, causing non-elliptical contact shapes as well as pressure distribution. For this reason, various non-Hertzian contact models have been studied for use in vehicle dynamics simulations. Among others, a method proposed by Piotrowski and Kik has gained acceptance in predicting non-elliptical wheel-rail contact for vehicle dynamics simulations. Despite the elegant formulation and its accuracy, detailed online geometric calculation for non-elliptical contact shape is required for all the contact patches at every iteration, along with iterative evaluation of the force-deflection relationship. It leads to computation burdens for use in long-distance vehicle simulations. Therefore, in this study, an off-line based numerical procedure for non-Hertzian contact model is developed and integrated in the quasi-steady railway vehicle motion solver.

Vehicle dynamics simulations with coupled multibody and finite element models

1999 ◽  
Vol 31 (4) ◽  
pp. 295-315 ◽  
Author(s):  
C.W. Mousseau ◽  
T.A. Laursen ◽  
M. Lidberg ◽  
R.L. Taylor
Keyword(s):  
Finite Element ◽  
Vehicle Dynamics ◽  
Finite Element Models ◽  
Dynamics Simulations

Design, Simulation, and Test of Variable Damped Suspensions for M-965 High CG Cars

2001 ◽  
Author(s):  
Armand P. Taillon ◽  
Peter E. Klauser
Keyword(s):  
Vehicle Dynamics ◽  
Center Of Gravity ◽  
Performance Criteria ◽  
Vehicle Performance ◽  
Car Body ◽  
Test Input ◽  
Analysis Methods ◽  
Body Roll ◽  
Dynamics Simulations ◽  
High Center

Abstract This paper reviews design and analysis methods applied in developing a three-piece Coulomb-damped truck arrangement to meet the requirements of specification M-965. This section of the AAR standards specifies performance criteria for high center of gravity cars over twist and roll inputs. The test input is a track section with a series of staggered low joints. These act to excite car body roll. The review demonstrates that properly designed suspension and damping components, in combination with side bearings, will achieve the required performance through the life of the truck. It also demonstrates the effectiveness of accurate vehicle dynamics simulations as a conservative predictor of actual vehicle performance on perturbed track. The design and analysis methods are described in detail. Guidelines are provided to help determine appropriate suspension arrangements for high CG car applications.

A TIRE MODEL FOR USE WITH VEHICLE DYNAMICS SIMULATIONS ON PAVEMENT AND OFF-ROAD SURFACES

1997 ◽  
Vol 27 (sup001) ◽  
pp. 318-321 ◽  
Author(s):  
R.W. ALLEN ◽  
J.P. CHRSTOS ◽  
T.J. ROSENTHAL
Keyword(s):  
Vehicle Dynamics ◽  
Tire Model ◽  
Road Surfaces ◽  
Dynamics Simulations
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