WHIRLING OF SHAFT AND LATERAL VIBRATION ANALYSIS

Abstract

In mechanical engineering, some machine components can behave differently due to the design of machine elements, manufacturing processes, and selection of materials. To understand basic phenomena of any general dynamic stresses, it is good to understand adequate modeling of the system. To start with, a lateral vibration analysis of the shaft is considered. It is well known that lateral bending, whirling and transverse vibration of propulsion systems phenomenon is not as dangerous as the torsional vibration. This study is focusing on the lateral frequencies and the mode shapes of three different materials. The main issue of the lateral frequency is that could cause resonance and fatigue in the material. In this study, mild steel is used as the benchmark material in this study. While the other two types of materials are aluminum oxide and stainless steel. There will be lumped and distributed model will be considered in this study. The parameters to be determined include the mode shapes and natural frequencies of the whirling shaft. As a conclusion, aluminum oxide is the best material used for this study because it has a high value of natural frequencies to avoid the resonance happened. 

Keywords: Lateral vibration, natural frequencies, mode shapes, resonance, steel, aluminum oxide