Title: The effect of geometric location of semitrailer centre of gravity on stability

Authors: Amir Shahab Asadi; Ahmad Keshavarzi

Addresses: Department of Mechanical Engineering, Islamic Azad University, Khomeinishahr Branch, Khomeinishahr, 8418148499, Iran ' Department of Mechanical Engineering, Islamic Azad University, Khomeinishahr Branch, Khomeinishahr, 8418148499, Iran

Abstract: This study investigated semitrailers' roll and stability. To this end, an O2 single-axle semitrailer, was used. The semitrailer's weight change, longitudinal shift of the centre of gravity (CG), and CG height change have a fundamental role in the stability of the vehicle and semitrailer on the road. This paper used analytical, experimental, and numerical analysis techniques to address this issue. To investigate the stability parameters, the DLC test (which is in compliance with ISO-3888) was used to compare the results obtained from the numerical and experimental models. The results indicated a 10% difference between the experimental and numerical methods and the longitudinal shift of CG had a greater effect than the CG height change on the vehicle's stability.

Keywords: semitrailer; centre of gravity; numerical analysis; experimental analysis; roll.

DOI: 10.1504/IJHVS.2024.137250

International Journal of Heavy Vehicle Systems, 2024 Vol.31 No.2, pp.169 - 186

Received: 11 Feb 2022
Accepted: 05 Aug 2022
Published online: 07 Mar 2024 *

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