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 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
Case 44: Cracking due to sudden temperature changes in piping
Excessive thermal stresses can be the cause
Case 43: Containing a failed impeller
A quick analysis can help direct further efforts
Case 42: Torsional vibration problems can be costly
The results are hammering of the gears and fretting of the splines
Case 40: Troubleshooting gear face damage
A simple analysis can help in determining the root cause of the failure
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