Analytical Modelling of Dump Truck Tire Dynamic Response to Haul Road Surface Excitations

Abstract

Trucks experience excitations during haulage due to road roughness, generating dynamic loads. Current mine haul road design techniques assume static tire loads, ignoring dynamic forces. This paper presents mathematical models for estimating tire dynamic forces on haul roads. Models were solved in Simulink® and RStudio® to generate random road profile (class D) according to ISO 8608, and compute dynamic forces for 59/80R63 tire. Results show that road roughness significantly affects impact forces on roads, with tire dynamic forces (1638.67 kN) ~ 1.6 times static forces (~1025 kN) at rated tire payloads. The method presented gives realistic estimates of tire impact forces, which serves as useful input for haul road design.

Department(s)

Mining Engineering

Keywords and Phrases

Dynamic loads; Estimation; Mine trucks; Roads and streets; Surface roughness; Tires; Dump truck tires; Dynamic forces; Haul roads; Road roughness; Road surface roughness; Static forces; Tire dynamics; Vertical velocity; Highway planning; Vehicle excitation

International Standard Serial Number (ISSN)

1748-0930; 1748-0949

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2018 Taylor & Francis, All rights reserved.

Publication Date

01 Jan 2020

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