Title: Development of FEA tyre/soil interaction model using SPH and hybrid SPH/FEA technique

Authors: Mehrsa Marjani; Moustafa El-Gindy; David Philipps; Fredrik Öijer; Inge Johansson

Addresses: University of Ontario Institute of Technology, 2000 Simcoe Street N, ON L1K 7K4, Canada ' University of Ontario Institute of Technology, 2000 Simcoe Street N, ON L1K 7K4, Canada ' Volvo Group Trucks Technology, 7900 National Service Rd., Greensboro, NC 27409, USA ' Volvo Group Trucks Technology, Chassis Strategies and Vehicle, Analysis Department 26661, AB4S, 405 08 Göteborg, Sweden ' Volvo Group Trucks Technology, Chassis Strategies and Vehicle, Analysis Department 26661, AB4S, 405 08 Göteborg, Sweden

Abstract: One of the most accurate methods for simulating numerous nonlinear systems is finite element analysis (FEA). However, when it comes to modelling non-meshed particles, smoothed particle hydrodynamics (SPH) is used to obtain more reliable results. The modelled FEA truck tyre is similar to a wide base truck tyre having specifications of 445/50R22.5. The tyre is previously validated through different simulations such as contact foot print, static deflection, dynamic first mode of vibration, and various rolling resistance tests. These simulations are performed under different inflation pressures, vertical loads, and speeds. In this research, the tyre is validated on soft soil, while considering various combinations of parameters. These parameters affect soil characteristics to reach an optimum and calibrated soil model corresponding to the existing empirical data for dry sand. This research will be heading toward developing an off-road rigid ring model in future projects.

Keywords: FEA; finite element analysis; SPH; smoothed particle hydrodynamics; validation; soft soil; truck tyre model; PAM-CRASH; tyre-road interaction; rolling resistance; dry sand.

DOI: 10.1504/IJVP.2017.085029

International Journal of Vehicle Performance, 2017 Vol.3 No.3, pp.199 - 223

Received: 16 Dec 2015
Accepted: 25 Apr 2016

Published online: 03 May 2017 *

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