Transient and steady state dynamic behaviour of single cylinder compressors: prediction and experiments

• Published in: Journal of sound and vibration Vol. 181; no. 1; pp. 23 - 41
• Main Authors: Dufour, R., Der Hagopian, J., Lalanne, M.
• Format: Journal Article
• Language: English
• Published: London Elsevier Ltd 16.03.1995; Elsevier
• Subjects: Applied sciences; Engineering Sciences; Exact sciences and technology; Mechanical engineering. Machine design; Pump and compressors (turbocompressors, fans, etc.); Reciprocating compressor; Cylinder; Experimental result; Vibration; Numerical method; Slider crank mechanism; Refrigeration compressor; Steady state; Comparative study; Transients
• ISSN: 0022-460X; 1095-8568
• DOI: 10.1006/jsvi.1995.0123

Single cylinder reciprocating compressors used in cooling appliances have sudden starts and stops which are sources of significant mechanical problems. Thus a method for predicting the entire motion is necessary to improve compressor design. The present study is mainly concerned with equations, computer code and experimental investigations. The speed of rotation of the crankshaft and time response of the compressor unit are of particular interest especially during the transient motion: start-up and shut-down. Despite measurements carried out in a hostile environment and difficulties in obtaining accurate knowledge of parameters such as friction, driven torque and relative pressure, the predicted and measured results are in good agreement, particularly those concerning the start-up and steady state motions.