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Case Studies | Mechanical Engineering | Indonesia | Volume 10 Issue 12, December 2021

Bearing Vibration Analysis on Steam Turbine

Risal Abu ^[2] | Afdal

Abstract: The steam turbine is a rotating machine so it will continue to experience shaft shifts axially and radially which can cause vibrations. Therefore, we need a tool such as monitoring and proximity probe sensors so that vibrations in the turbine when operating can be monitored. One of the tools that can be used to detect the cause of damage to the steam turbine bearings at PT. Supreme Energy Muara Laboh (SEML) is a System One Bently Nevada application that is connected to a turbine bearing to read the spectrum and the waveform. The resulting spectrum and waveform are then analyzed according to the Mobius Institute Standard. Based on the results of the vibration analysis on the steam turbine PT. SEML shows that bearing 1 indicates unbalance, bearing wear and angular misalignment. Bearing 2 has unbalance, bearing wear, parallel misalignment and angular misalignment, bearing 3 indicates parallel misalignment, and bearing 4 indicates unbalance, parallel misalignment and angular misalignment.

Keywords: Turbine, Bearing, Spectrum, Waveform, Unbalance, Bearing Wear, Misalignment

Edition: Volume 10 Issue 12, December 2021,

Pages: 554 - 560