Sofronas, A.

Consulting Engineer, Houston, Texas

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

Sofronas, A., Consulting Engineer

Some simple calculations can guide the way to improved performance

Case 54: Is it motor vibration or some other cause?

Sofronas, A., Consulting Engineer

It's not always the motor causing the vibration

Case 53: Electrical faults can cause shaft and gear failures

Sofronas, A., Consulting Engineer

This technique allows transient torques in geared units to be determined

Case 52: Problems with a blocked-in centrifugal pump

Sofronas, A., Consulting Engineer

The potential for overheating is one of many concerns

Case 51: Phantom failures

Sofronas, A., Consulting Engineer

Why some are very elusive

Case 50: Gearbox input shaft failure analysis

Sofronas, A., Consulting Engineer

Make sure the same failures are not repeated at your affiliated plant sites

Case 49: Isolating foundations from machinery vibrating forces

Sofronas, A., Consulting Engineer

Vibration can be detrimental to nearby equipment

Case 48: Troubleshooting a roller-bearing failure

Sofronas, A., Consulting Engineer

Life to failure and design life aren't the same thing

Case 47: Refrigeration system vibration

Sofronas, A., Consulting Engineer

A systematic procedure can identify the vibration source

Case 46: Rotary screw compressor failure

Sofronas, A., Consulting Engineer

Most complex equipment can be simplified