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The coupled linear and torsional vibration behavior of an engine driven compressor system is analyzed in both the time and frequency domain. This article discusses the linear dynamic response of a compressor frame caused by crankshaft rotating speed differences due to torsional resonance. The authors extend a previous paper’s finding presented at last year’s GMRC to a more comprehensive study including more parameters such as torsional resonance, phasing angle, self-balance, multiple orders, and multiple stages. A combined finite element analysis (FEA) and torsional vibration analysis (TVA) case study is completed based on a Caterpillar engine-Ariel compressor system.
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