THE EFFECT OF FULL ANNULAR RUB ON THE ROTATING MACHINERY SYSTEM CONSIDERING DIFFERENT RUB MATERIALS AND SHAFT RUNNING SPEEDS

摘要

In this study, the effect of full annular rub on the rotating machinery system considering different rub materials and shaft running speeds was experimentally studied Experiments were carried out for the rub materials - copper, bronze, brass, soft plastic, hard plastic, steel 304, steel 316, and steel 2379. The force and vibration signatures of shaft rub on bearing housing were analyzed. The results showed that the vibration amplitude of inboard bearing housing close to the motor increased significantly with the shaft speed increased. The spectrum for the soft plastic rub material found to has a unique characteristic so that the vibration level was lower than the baseline (without rub material) vibration.