Evaluation of Effects of Wheel Loader Load Condition on Driver Ride Comfort

Wheel loader ride comfort is a critical factor affecting operator safety, productivity, and long-term health. This study systematically investigates the influence of different operating load conditions using a half-vehicle dynamic model. The ride comfort is evaluated based on the root mean square (r.m.s) values of acceleration responses of the vertical driver's seat (aws) and pitch angles of cab (awc), in accordance with ISO 2631:1997(E) standards. The simulation results demonstrate that variations in operating loads significantly affect ride comfort when the machine operates under an ISO class D road surface at a speed of 10 km/h. These findings provide a theoretical basis for optimizing the load configuration of wheel loaders to ensure acceptable ride comfort during operation.