Sofronas, A.
Tony Sofronas, D. Eng, was the worldwide lead mechanical engineer for ExxonMobil Chemicals before retiring. He now owns Engineered Products, which provides consulting and engineering seminars on machinery and pressure vessels. Dr. Sofronas has authored two engineering books and numerous technical articles on analytical methods.
Case 56: Quick troubleshooting of shaft failures
Some simple calculations can guide the way to improved performance
Case 54: Is it motor vibration or some other cause?
It's not always the motor causing the vibration
Case 53: Electrical faults can cause shaft and gear failures
This technique allows transient torques in geared units to be determined
Case 52: Problems with a blocked-in centrifugal pump
The potential for overheating is one of many concerns
Case 50: Gearbox input shaft failure analysis
Make sure the same failures are not repeated at your affiliated plant sites
Case 49: Isolating foundations from machinery vibrating forces
Vibration can be detrimental to nearby equipment
Case 48: Troubleshooting a roller-bearing failure
Life to failure and design life aren't the same thing
Case 47: Refrigeration system vibration
A systematic procedure can identify the vibration source
Case 46: Rotary screw compressor failure
Most complex equipment can be simplified
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