Design, Manufacturing and Vibration Respond Measurements of Shaft Misalignment Test Rig

• Main Author: Manurung, Heber
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/37512
• Institution: Institut Teknologi Bandung

A rotating machinery problem will generate vibration. Excessive vibration level on rotating machinery will cause its component to fail prematurely. This condition may affect rotating machinery activity and can shorten its lifetime. Source of the excessive vibration level on the rotating machinery may be originated by shaft misalignment phenomenon. Therefore, design, manufacturing and vibration response measurements of a shaft misalignment test set up is intended to facilitate vibration signatures evaluation of defective shaft misalignment research. The aim of this research is to develop a shaft misalignment test rig which has facilities to show parallel misalignment (horizontal and vertical) and angular misalignment (horizontal and vertical) that is used to predict misalignment vibration signature. This measuring set up is an improvement of the existing similar set up which is already available at the Lab. Design evaluations are carried out by using static and normal mode analysis modules available in MSC Nastran for windows V4.5 software. Experimental evaluations are related to FRF, spectral map and vibration response due to shaft misaligned condition introduced to the measuring set up.???? The FRF measurement result shows that the first natural frequency of the new shaft misalignment test rig (111.5 Hz) has higher value compared to its operating frequency (0-50 Hz). The result of the spectral map and vibration response due to misalignment measurement are able to indicate vibration signature which normally occurred on shaft misalignment case.