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Hello, I'm currently troubleshooting a new horizontal induction motor (API 541), 750 HP, 3583 RPM (59.7 Hz), 4000 V, 75.3 A, showing high 3x seismic vibrations axially at 3.5 mm/s 0-p during shop solo run test. What in your technical opinion could be the reason behind this given that shaft...

Greetings, I'm currently troubleshooting a centrifugal gas compressor with high vibration and would appreciate your technical opinions on the matter. The compressor is a Dresser Clark 40+ years old 3-stage driven by a 6000 hp induction motor through a gearbox with a rated speed of 9200 rpm. It...

I'm currently troubleshooting an old 50+ year old Elliott 3-stage integrally geared air compressor for high vibration. During normal switchover, the compressor tripped on LS shaft. The eddy current vibration sensor loop was replaced, the coupling was checked, and the shaft was rotated with no...

Thank you all for your interest in this topic. The shaft diameter at bearings is 8.5" with clearance of journal bearings to shaft is 8-13 thou. The clearance in the wear rings is 29-33 thou. In terms of lubrication, it is a forced lubrication system with a horizontal groove on the bearing that...

The pump is a head shipping pump of seawater. Maximum temperature is approximately 50 deg C.

This case is for a single-stage double suction, 15,000 hp pump with sleeve bearings driven by a synchronous motor. The pump was recently overhauled as the inboard wear rings were dislodged and broken. After overhaul, the pump was shipped back to the facility and during the coupled run test, the...

This is a 6 stages centrifugal compressor with hydrodynamic journal bearings and Kingsbury thrust bearing. It's driven by a steam turbine. I've seen this many times were a machine with high vibrations is started 2-3 times to basically see the vibration levels or collect data through ADRE, etc...

Greetings, Would there be significant effects on centrifugal compressors if started multiple times within a short period of time to collect vibration data on them, where these compressors are operating above 1st critical speed?

Hello, What are some of the recent technologies in condition monitoring, machine fault analysis, PdM, etc. that can assist my dynamic analysis team?

A firewater pump utilize gland packing as a means to seal the pumped liquid from external leakage. Given that this liquid is salty water taken from the sea, do you think it would be economically and operationally better to upgrade to a mechanical seal?