Quote:
Originally Posted by snailpace85
Hello vonrho,
Hopefully your supervisor should be able to give some leads. I'm not an expert in exactly what's going on with MGU-turbocharger systems but do have an MSc in rotating machinery. You might find books by authors such as Vance and Childs on rotordynamics of turbomachinery useful. The big issue that I see for a combined MGU, impeller and turbine on a single shaft is the dynamic behaviour due to shaft bending at its natural frequencies. An MGU is heavy. A turbocharger spins at high revs. The whole thing is a nightmare from centrifugal force, balance and shaft bending natural frequencies points of view. Therefore a big benefit can come from separating these parts as far as possible to give short shafts and each part mounted on its own bearings.
My gut feeling is that what you are looking into could be very useful.
Hope that's some sort of use,
Scott
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Awesome, thanks for the input. never really thought of it from a rotor dynamic point of view, will have a look into it.
Cheers
Ivan Rhodes