# Motor gearbox selection
# Scope: Torque/speed after a reduction with supplied efficiency.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

motorTorque = 0.5 N*m
motorSpeed = 3000 rpm
ratio = 10
efficiency = 0.9

torque := motorTorque*ratio*efficiency [N*m]
speed := motorSpeed/ratio [rpm]

check output torque target: torque >= 4 N*m

scenario alternative: motorTorque = 0.4 N*m