Archives

  • Engine Crankshaft Failures Due to Torsional Natural Frequency Excited by Dual Fuel Operation

    Paper No. 112 By Troy Feese and Greg Beshouri Torsional Vibration Symposium 2022 - Salzburg, Austria Abstract Two diesel engine–generator...

    read more
  • Motor Cooling Fan Failures Solved with Modal and Finite Element Analyses

    Paper No. 111 By Dr. Jae-Yeol Park, Dong-Ju Lee, Yong-Jae Jang, and Troy Feese Torsional Vibration Symposium 2022 - Salzburg,...

    read more
  • Torsional Failures in Hydrogen Reciprocating Compressor System with Stepless Capacity Control

    Paper No. 110 By Dong-Ju Lee, Dr. Jae-Yeol Park and Troy Feese Torsional Vibration Symposium 2022 - Salzburg, Austria Abstract...

    read more
  • Special Considerations for Electric Motors Driving Reciprocating Compressors

    Paper No. 109 By Troy Feese and William (BJ) Schnitzler - GMRC Louisville, KY, October 2021. Abstract In the natural...

    read more
  • Tips for Troubleshooting with the Operating Deflection Shape (ODS) Technique

    Paper No. 103 An Operating Deflection Shape (ODS) is a valuable tool used for visualizing vibration associated with reciprocating and...

    read more
  • A comparison of Operating Deflection Shape and Motion Amplification Video Techniques for Vibration Analysis

    Paper No. 107 The Operating Deflection Shape (ODS) technique that was derived from Experimental Modal Analysis has served well to...

    read more
  • Applying API and NEMA Specifications to Limit Electrical Current Pulsation and Torsional Vibration of Synchronous Motors Driving Reciprocating Compressors

    Paper No. 108 Unsteady torque from a reciprocating compressor can cause angular oscillation of the motor rotor. The rotational system...

    read more
  • Coupling Failures in VFD Motor / Fan Systems Due to Torsional Vibration

    Paper No. 106 Variable frequency drives (VFDs) are used to control motors over a wide operating speed range. VFDs can...

    read more
  • Coupling Failure in Engine-Driven Pipeline Compressor System

    Paper No. 105 Engine-driven compressor units at a gas transmission pipeline station experienced multiple coupling failures. These units had a...

    read more
  • Electromagnetic Effects on the Torsional Natural Frequencies of an Induction Motor Driven Reciprocating Compressor With a Soft Coupling

    Paper No. 104 The electromagnetic field in the air gap of an electric motor is responsible for producing torque between...

    read more