Experimental Investigation of Vibration and Noise Control of Reciprocating Compressors

Abstract

The reciprocating compressor contains crank-rod mechanism whose unbalanced inertia force mainly accounts for mechanical noise and vibration during the working process. Through the analysis of fit between the diameter of the compressor piston and the crank eccentricity, influence of imbalance force on the compressor vibration and noise is obtained under no change in other parts. The tests of vibration and noise are followed for the purpose of verification. The results show that the vibration and noise control will be better if a small piston diameter and a big crank eccentricity are utilized.

A Harmonic Response Analysis of Food Refrigeration Compressor Based on Abaqus

“…Because of the advantages of a wide temperature range, easiness to design and manufacture, high reliability and mature operating conditions [1], the semi-hermetic reciprocating food refrigeration compressor is still widely used as the earliest model among all types of refrigeration compressors [2][3][4]. In recent years, with the continuous development of domestic food preservation industry, the annual growth rate of refrigerated display cabinets has remained at about 10%, whose potential market is tremendous.…”