A Study on the Axial and Torsional Coupled Vibration of Marine propeller shafts

J. Ocean Eng. Technol. 1994;8(1):71-83.

선박 추진축의 종 비틂 연성진동에 관한 연구

김용철,정태영,전윤호

영남대학교 기계공학과,한국기계연구원 구조연구부,영남대학교

Abstract

The axial and torsional coupled vibration of marine propeller shafts can be mainly caused by actual shape of the crank shaft and hydrodynamic forces and moments due to propellers : the former leads to stiffness matrix coupling and the latter leads to inertia and damping matrix coupling. In the present paper the characteristics of the coupled vibration of marine propeller shafts due to hydrodynamic coupling is investigated in details. First, the modelling procedure of the system and analysis technique are also developed. To verify the present method the numerical calculations were also performed. Finally, the results were compared with existing data in the literature and it was found to be in good agreement.