摘要
针对动磁式直线压缩机的工作特点,提出一种实用的气体轴承结构,以改善气缸与活塞间的自润滑特性,从而提高直线压缩机的效率。通过CFD数值计算,分析了静压气体轴承的结构参数及进出口压力变化对其静态承载能力和耗气量的影响,进而研究了轴承的动态承载特性,给出了气体轴承的最佳几何参数。
Through the operating characteristic of a moving-magnet linear compressor,a structure of practical hydrostatic gas bearing is proposed and applied to a linear compressor for improving the self-lubrication characteristic between the cylinder and the piston in a Stirling cryocooler.The efficiency of a linear compressor is thus enhanced.The effects of structural parameters and of inlet and outlet pressure changes of static gas bearing on the static load bearing capacity and on the gas consumption are analyzed by a CFD numerical calculation.The dynamic load-bearing characteristic of the gas bearing is in turn investigated and optimal geometric parameters are provided.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2013年第6期1026-1030,共5页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.50976037)
武汉市科技攻关计划项目(No.201171034312)
关键词
动磁直线压缩机
气体轴承
CFD模拟
承载特性
moving-magnet linear compressor
gas bearing
CFD simulation
load-bearing characteristic
