CAJ | 학술논문

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。
대기동분치식팽창궤진자진행운동분석화실험험증，설명수기동간면적증가，진자상각감소、진폭증가；장직련결구여기동간결구제랭궤성능진행대비，개소료계제축면적비회영향제랭궤적압축궤화팽창궤필배，실제연발중응결합압비、상각、진폭궤방면학정계제축면적；분석료계제축결구팽창궤적관빈공작특성。
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.