Vibration diagnosis of turbomachinery coupled with induction motor

G, Krishnareddy and B, Venkatesham and G, Ramireddy (2020) Vibration diagnosis of turbomachinery coupled with induction motor. In: 49th International Conference on Vibroengineering, 26-28 November 2020.

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Abstract

This paper is focusing on diagnosis for longitudinal and radial vibrations of turbomachinery coupled with induction motors. In this context, extensive field vibration measurements are conducted and analysed to identify the source of predominant vibrations on rotor bearing system in a chosen centrifugal compressor in the radial and longitudinal directions. As a first step, the measured overall vibration levels at multiple locations on bearing surface are compared with the existing ISO standard limits. These measurements showed severe longitudinal vibration values and failure of thrust collar assembly which were not considered in turbomachinery (API) design standards. The second step in diagnosis for vibration spectrum measurements are conducted both in longitudinal and radial directions during transient and steady state operations to find the vibration source and thrust collar assembly failure mechanism. This study on vibration diagnosis and analysis on turbomachinery is useful in correcting the severe longitudinal vibrations and damage control measures and corrections associated with static eccentric airgaps through motor air gap diagram.

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IITH Creators:
IITH CreatorsORCiD
Venkatesham, Bhttps://orcid.org/0000-0003-3651-513X
Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Failure mechanism; Longitudinal direction; Longitudinal vibrations; Radial vibrations; Rotor-bearing system; Steady-state operation; Vibration diagnosis; Vibration sources
Subjects: Physics > Mechanical and aerospace
Physics
Physics > Modern physics
Divisions: Department of Mechanical & Aerospace Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 24 Jun 2021 06:20
Last Modified: 01 Mar 2022 07:11
URI: http://raiith.iith.ac.in/id/eprint/7992
Publisher URL: http://doi.org/10.21595/vp.2020.21768
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