Search
Now showing items 1-4 of 4
Torsional Instability Of Cooling Tower Fan During Induction Motor Startup
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Torsional instability during starting of an induction motor has caused excessive torque oscillation and eventual failure of gearbox pinion teeth of a cooling tower fan train. A torsional instability appeared due to a steep ...
Torsional-Lateral Coupled Vibration Of Centrifugal Compressor System At Interharmonic Frequencies Related To Control Loop Frequencies In Voltage Source Inverter.
(Texas A&M University. Turbomachinery Laboratories, 2009)
Centrifugal compressor train in a refinery experienced high vibration problem due to torsional resonance. Sidebands in the VFD output current based on VFD control loop frequencies were identified as the root cause. In this ...
Overcoming Failure of Synchronous Motor Driven Compressor Train by Application of Controlled Slip Clutch
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2020)
This case study describes failure incident of a centrifugal compressor, its root cause investigation, and countermeasure implementation. An integrally geared centrifugal air compressor driven by a synchronous motor failed ...
Prediction Of Lateral Vibration Behavior Of Integrally Geared Centrifugal Compressor During Synchronous Motor Startup By Transient Torsional-Lateral Coupled Analysis
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
Startup transients of both torsional and lateral vibration behaviors of an integrally geared centrifugal compressor driven by a synchronous motor are examined by transient torsional-lateral coupled analyses, and the numerical ...