Off-highway truck setup influence on vehicle dynamics and frame durability

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Abstract

The unpaved roads of mining sites can not only lead to health problems on haul truck’s driver but also reduce its frame useful life and provide worse handling performance. This study investigates the influence of different suspension-tire setups on the behaviour of a 64-ton mining haul truck, focusing on the initial gas volume of the hydropneumatic suspension (HPS) and tire inflation pressure. Using a multibody model, typical manoeuvres were simulated to assess handling, comfort, and frame durability. Results suggested that softer suspension and tire setups could enhance ride comfort and frame durability without substantially affecting handling.

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