A Modal-Based Derivation of Transient Vertical Pressure Distribution along the Tyre-Road Contact

Document Number: 2009-01-0457

Date Published: April 2009

Author(s):
Achillefs Tsotras - Loughborough Univ.
George Mavros - Loughborough Univ.

Abstract:
The two-dimensional, frictional tire-road contact interaction is investigated. A transient contact algorithm is developed, consisting of an analytical belt model, a nonlinear sidewall structure and a discretized viscoelastic tread foundation. The relationship between the magnitude/shape of the predicted two-dimensional pressure distribution and the corresponding belt deformation is identified. The effect of vertical load and the role of sidewall nonlinearity are highlighted. The modal expansion/reduction method is proposed for the increase of the computational efficiency and the effect of the degree of reduction on the simulation accuracy is presented. The qualitative results are physically explained through the participation of certain modes in the equilibrium solution, offering directions for the application of the modal reduction method in shear-force-oriented tire models.

File Size: 687K
Product Status: In Stock

Included in: V118-6

See other papers presented at SAE World Congress & Exhibition, April 2009, Detroit, MI, USA, Session: Vehicle Dynamics and Simulation (Part 4 of 4): Vehicle dynamics modeling using commercial software, and tire forces and moments modeling for vehicle dynamics simulations

Purchase more technical papers and save! With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay. Learn more >