A graduate of the Dubrovnik Maritime Academy, Croatia, Ivo Dabelic spent 6 years at sea as third, second and first engineer. Afterward, he spent 9 years as a Marine service engineer in the Rotterdam, Netherlands and San Francisco, Calif. He holds a chief engineer license for steam and diesel engine plants. Specializing in repair and, later, in vibration related problems, he served as a manager of maintenance in the marine industry. He has been active in industry for 38 years, specializing in rotor-dynamic and torsional analysis on single-shaft and branched systems.