Non-Linear and Non-Steady Tire Model Under High-Range Slip Condition

2013 ◽  
Author(s):  
Erfan Afrasiabi ◽  
Francesco Braghin ◽  
Edoardo Sabbioni ◽  
Vincenzo Scali
Keyword(s):  
Experimental Data ◽  
Surface Roughness ◽  
Road Surface ◽  
Contact Forces ◽  
Slip Angle ◽  
Tire Model ◽  
Vertical Load ◽  
Camber Angle ◽  
Road Surface Roughness ◽  
High Range

Based on experimental data, a nonlinear tire model able to predict tire contact forces as a function of slippage, slip angle, camber angle, vertical load, tire bulk and tread temperatures as well as road surface roughness and road temperature has been developed.

Prediction of Tire Ground Interaction Using FEA Truck Tire Models

2012 ◽  
Author(s):  
Rustam Ali ◽  
Moustafa El-Gindy ◽  
Ranvir Dhillon ◽  
Trivedi Mukesh ◽  
Fredrik Öijer ◽  
...  
Keyword(s):  
Rolling Resistance ◽  
Physical Models ◽  
Design Parameters ◽  
Slip Angle ◽  
Tire Model ◽  
Vertical Load ◽  
Camber Angle ◽  
Truck Tire ◽  
Deflection Test ◽  
Tire Models

The advancement of computerized modeling has allowed for the creation of extensive pneumatic tire models. These models have been used to determine many tire properties and tire-road interaction parameters which are either prohibitively expensive or unavailable with physical models. This paper focuses on the prediction of tire-ground interaction with emphasis on individual and combined effect of tire slip angle and camber angle at various operating parameters. The forces generated at tire contact such as rolling resistance, cornering force, aligning moment and overturning moment can be predicted and used to optimize the tire design parameters. In addition to above stated, the three-groove FEA truck tire model representing radial-ply tire of size 295/75R22.5 was used in vertical load deflection test to determine enveloping characteristics under various load conditions and inflation pressures.

scholarly journals Thermomechanical Couplings in Aircraft Tire Rolling/Sliding Modeling

2011 ◽  
Vol 274 ◽  
pp. 81-90 ◽  
Author(s):  
Ange Kongo Kondé ◽  
Iulian Rosu ◽  
F. Lebon ◽  
L. Seguin ◽  
Olivier Brardo ◽  
...  
Keyword(s):  
Friction Coefficient ◽  
Thermal Effects ◽  
Coulomb Friction ◽  
Large Deformations ◽  
Element Model ◽  
Slip Angle ◽  
Tire Model ◽  
Vertical Load ◽  
Coulomb Friction Law ◽  
Lateral Friction

This paper presents a finite element model for the simulation of aircraft tire rolling. Large deformations, material incompressibility, heterogeneities of the material, unilateral contact with Coulomb friction law are taken into account. The numerical model will allow estimating the forces in the contact patch - even in critical and extreme conditions for the aircraft safety and security. We show the influence of loading parameters (vertical load, velocity, inflating pressure) and slip angle on the Self Aligning torque and on the lateral friction coefficient. A friction coefficient law corresponding to Chichinadze model is considered to take into account thermal effects in the aircraft tire model behaviour.

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