Theoretical Analysis and Matlab Simulation of Dynamic Vibration Absorber for Single-Piston Linear Compressor

Single-piston linear Stirling cryocoolers are widely used in infrared detectors owing to their fast cooling, lightweight, and high reliability. However, the vibration generated by the compressor during operation considerably affects the imaging quality of the detector. Therefore, the use of a dynamic vibration absorber has become the best vibration reduction method for single-piston linear compressors. First, this article discusses the role of a dynamic vibration absorber in damping single-piston linear compressors and provides an example of the basic structure of current single-piston linear compressors. Second, to generalize the theoretical analysis, several important dimensionless parameters are introduced in the theoretical calculation of the dynamic vibration absorber and compressor vibration model. Finally, Matlab is used to simulate the vibration amplitude-frequency characteristics of the dynamic vibration absorber and compressor model