Browse Publications Technical Papers 941117
1994-04-01

Flexible Body Dynamic Simulation of a Large Mining Truck 941117

A three dimensional mathematical model of a Caterpillar mining truck has been developed to simulate transient structural deformation and suspension response of a large mining truck traversing a known rough terrain course. The model incorporates compliant (finite element) representations of the truck frame, dump body, and rear axle housing into a dynamic mechanical system simulation model.
Model results - frame acceleration, axle housing elastic deformation, and suspension response (strut pressures and displacements) are correlated with measured data from an instrumented truck traversing the steel speed bump portion of the rough terrain course.
Results demonstrate that complex truck behavior can be simulated by combining finite element and mechanical system simulations.

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