I have the following scenario in mind :
- A series (few in number)of electrically driven rotary gears (pinions) in a rack and pinion system are in contact with a rack. Would it be fair to assume that the displacement of the rack would be a superposition of the motions of the rotors (and hence the driving electrical waveforms ) ??
- If only some of the rotors are electrically driven, would the above still be the case ? For example, when only one of the rotors is driven, would the displacement of the rack still track the driving waveform(s) or would the passive rotors significantly affect the transfer of energy / momentum ? (Assume that the rotors are lightweight , small and have low inertia and there is enough lubrication to avoid wear and tear etc ).