Modelling, Simulation and Experimental Validation of Half Semi-Truck Suspension System Vibration
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Date
2025
Journal Title
Journal ISSN
Volume Title
Publisher
Published Faculty of engineering, University of Ilorin
Abstract
This paper is aimed at modelling and experimental validation of the vibration models of a semi-truck
suspension system. A half-car (4-degree-of-freedom) model was developed for the semi-truck vehicle using the
Newton law and simulated using SCILAB-Xcos. The analysis specifically focused on the acceleration response of the
vehicle body at different speed levels (10, 20, and 30 km/hr), which was determined with the smartphone-installed
accelerometer (Keuwl app). The simulated root mean square accelerations of 0.33, 0.55 and 0.72 m/s2 revealed a
favourable comparison with the experimental root mean square accelerations (0.31, 0.54 and 0.69 m/s2) at 10, 20 and
30 km/hr, respectively. This showed that the ride comfort is not an uncomfortable zone at low speeds, and many are
considered fairly uncomfortable. The findings provided valuable insights into the dynamic behaviour of semi-truck
vehicles, highlighting the role of speed in suspension system performance. This information can be utilised to optimise
vehicle performance, enhance ride comfort, and improve overall safety.
Description
Keywords
Modelling, Simulation, Ride comfort, Half-car model, and Vibration
Citation
Ibrahim, H. K., Popoola, O. T., Akinola, E. A., Osatuyi, F. W., Tijani, Z. O., Abdulazeez, K. O., ... & Kelani, T. M. (2025). Modelling, Simulation and Experimental Validation of Half Semi-Truck Suspension System Vibration. Nigerian Journal of Technological Development, 22(1), 236-244.