Análisis dinámico y velocidad crítica del sistema de ejes de propulsión de barcos.

Abstract

A shaft line is the set of machinery components required to propel a ship, more specifically the components that serve to transmit power from the prime mover to the propeller. Propulsion shafts are the main concern of this project, but it is crucial to recognize the different components that make up a complete shaftline. This research aims to analyze the lateral vibration of the propulsion shaft system of the 500 GRT purse seiner fishing vessel of DEGFER Group Company. In addition to studying the rationality of the mathematical model of the shaft system, it will also calculate the natural frequency and vibration of the shaft and analyze the critical rotational speed corresponding to each natural frequency and the resonance point of each vibration order. The results of this study can be used as a reference for the operating parameters of the propulsion shaft system of existing ships, reducing the risks that may be faced when operating the ship, reducing the probability of failure of propulsion shaft-related equipment without warning, and thus extending the service life of the propulsion shaft system and related equipment of existing ships.