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Example: As a truck climbs a ramp, its velocity drops, rimpull increases, and engine load increases in turn.
What is the Number of Trucks referring to in the Cycle Time Analysis tab?
It's the number of Trucks required in a haul so that the Loader can reach its Final Loader Rate based on the Cycle Times > Parameters inputs.
For example, if a Loader can load a 230 t Truck in 5 passes (based on the Loader Bucket Payload), and this is taking 5 minutes, then the Loader can reach a mining rate of 230 t / 0.083 hrs = 2771 t/hrs before taking delays into account. This is called Final Loader Rate. If the Theoretical Truck Cycle Time (excluding queue) from HI Setup Parameters is 0.5 hrs for a certain haul, then the number of Trucks required in that run to reach the above mining rate is (2771 / 230) x 0.5 = 12.05 x 0.5 = 6.025 trucks which is the number shown in the Cycle Time Analysis tab.