红外技术, 2014, 36 (1): 68, 网络出版: 2014-02-26
分置式斯特林制冷机气动膨胀机阶梯轴振子运动特性研究
Motion Characteristics Study on the Stepped-rod Type Vibrator in Pneumatic Expander of Split-Stirling Cryocooler
摘要
对气动分置式膨胀机振子进行运动分析和实验验证,说明随气动杆面积增加,振子相角减小、振幅增加;将直连结构与气动杆结构制冷机性能进行对比,介绍了阶梯轴面积比会影响制冷机的压缩机和膨胀机匹配,实际研发中应结合压比、相角、振幅几方面确定阶梯轴面积;分析了阶梯轴结构膨胀机的宽频工作特性。
Abstract
The vibrator in pneumatic expander of split-stirling cryocooler was analyzed and verified. With pneumatic rod area increases, vibrator's phase angle decreases, while stroke increases. The cooling capacity of Stepped-rod type was compared with direct-connected type's. The stepped-rod area rate will affect the matching of the expander to the compressor. The pressure ratio, phase angle and amplitude were considered to determine the area of the stepped-rod. The stepped-rod type expander’s wide frequency adapt characteristics is also analyzed.
江重桦, 陈晓屏, 夏明, 李海英, 黄伟, 陈军. 分置式斯特林制冷机气动膨胀机阶梯轴振子运动特性研究[J]. 红外技术, 2014, 36(1): 68. JIANG Chong-hua, CHEN Xiao-ping, XIA Ming, LI Hai-ying, HUANG Wei, CHEN Jun. Motion Characteristics Study on the Stepped-rod Type Vibrator in Pneumatic Expander of Split-Stirling Cryocooler[J]. Infrared Technology, 2014, 36(1): 68.