Thread: Gearbox friction model
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Unread 27-12-2013, 23:32
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Question Gearbox friction model
I'm making a gearbox and motor simulation, and I've heard that planetary gearboxes generally have around 85% efficiency/stage. Which of these would model this better?

Code:
OutputSpeed = inputSpeed * efficiency^numStages / ratio;
OutputTorque = inputTorque * ratio
Code:
OutputSpeed = inputSpeed * efficiency^(numStages/2) / ratio;
OutputTorque = inputTorque * efficiency^(numStages/2) * ratio;
Something else maybe?