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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...
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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...
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Applications of Modal Techniques to Noise Control of Hermetic Refrigeration Compressors
Paper No. 89 That there exists interaction between vibration and structure-borne or structurally radiated sound is generally recognized. However, it...
read more Vibrations in Reciprocating Machinery and Piping Systems
Paper No. 68 J. C. Wachel/J. D. Tison, 23rd Turbomachinery Symposium, Texas A&M University, September 13-15, 1994 . A wide...
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Field Verification of Lateral-Torsional Coupling Effects
Paper No. 21 J. C. Wachel/F. R. Szenasi, NASA CP 2133, Rotordynamics Instability Problems in High-Performance Turbomachinery, Texas A&M University,...
read more A Discussion of the Various Loads Used to Rate Reciprocating Compressors
Paper No. 95 By Kenneth E. Atkins, Martin Hinchliff, and Bruce McCain Reciprocating compressors are usually rated in terms of horsepower,...
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