RESEARCH ON THE DYNAMIC MODELING OF THE LONGITUDINAL VIBRATION OF A SHIP SHAFT-HULL SYSTEM

摘要

A dynamic model to study the longitudinal vibration of a ship shaft-hull system is established using FRF-based substructuring method. The modes and nature frequencies of the shaft, the hull and the shaft-hull system are firstly analyzed separately. The coupled vibration characteristics of the shaft, the hull and the shaft hull system are then simulated. Finally, an experiment studying the vibration characteristics on a large scale shaft-hull system is carried out and compared with the numerical results, which shows good consistency.