Design, Manufacturing, and Vibration Response Measurements of Balancing Test Rig for Two Rotors Coupled Together

• Main Author: Pradana, Aditya
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/37562
• Institution: Institut Teknologi Bandung

Unbalance is the most common malfunction problem in rotating machinery due to uneven radial distribution of mass along the rotor. When two rotors are coupled together, the complete unit will have to be evaluated with special balancing procedure. To deepen the understanding of vibration response characteristics caused by unbalance, the aims of the final project will be designing, manufacturing, and vibration response measurements of balancing test rig which consists of two rotors that are coupled together. This final project will also investigate the side effects of two types of couplings on the vibration response of the balancing test rig. Autodesk Inventor software will be used for the design process. Then ANSYS Workbench software will be used to analyze the strength of the balancing test rig due to static and dynamic forces and also to analyze normal mode of the balancing test rig. FRF test must be done to validate normal mode analysis. Spectral map test also is also performed to see the flaws that happened on the rotational element of the test rig. The FRF measurement results show that the value of model natural frequency is close to the value of natural frequency experimental examination. And spectral map results also show that the balancing test rig can demonstrate vibration response characteristics caused by unbalance. The Overall Vibration Level (OVL) of unbalance case with flange coupling is higher than the unbalance case with flexible coupling.