Abstract
Mining dump trucks play a crucial role in material transportation within open-pit coal mining operations, and three-axle mining dump trucks have attracted many attentions due to their high load-bearing capacity. The suspension system significantly affects ride comfort and handling stability. However, conventional suspension configurations often fail to achieve optimal performance. So, a hydraulic ISD-interconnected suspension was proposed which integrates an inertial container spring damping (ISD) structure with a mid-rear interconnected hydro-pneumatic suspension system for the XDR80T mining dump truck. This proposed hydraulic ISD-interconnected suspension aims to balance load distribution, suppress low-frequency vibrations, and enhance both driving stability and ride comfort. Based on the full-scale model of the mining dump trucks, a mechanical model was established in ADAMS, and a hydraulic suspension model was developed in AMESim. A coupled mechanical-hydraulic co-simulation model was then constructed to analyze the suspension’s dynamic behavior and the vehicle’s vibration response under various road excitations. Key performance indicators, such as the vertical acceleration of the vehicle’s center of mass, tire dynamic load, suspension deflection, and pitch angular acceleration, were discussed. Furthermore, suspension bench tests were conducted experimentally to verify the superior vibration attenuation and stability performance of this proposed hydraulic ISD-interconnected suspension. The results provide valuable insights into the optimization design of suspension system for heavy-duty mining dump trucks.
Get full access to this article
View all access options for this article.