On the passing through resonance of a centrifugal exciter with two coaxial unbalances

Passage through and capture into the resonance of a centrifugal exciter with two coaxial unbalances driven by an engine of limited power is investigated using an averaging method for a partially strongly damped system. It is demonstrated that the system dynamics can be reduced on the slow manifold to two first-order differential equations that predict both stationary and transient solutions of the original system. The system shows two different types of solutions corresponding to the capture into the resonance. Their occurrence and existence range are investigated in terms of the dependency of engine parameters.