平行轴布置的斯特林制冷机设计原理与应用分析  

THE PRINCIPLE AND APPLICATIONS OF PARALLEL-AXIS LAYOUT STIRLING COOLER

作　　者：孙皓[1] 陈晓屏[1] 

机构地区：[1]昆明物理研究所,昆明650223

出　　处：《真空与低温》2015年第2期82-85,共4页Vacuum and Cryogenics

摘　　要：稳定平台光电系统设计常用线性斯特林制冷机以达到振动小的要求,但以牺牲重量、尺寸、功耗为代价。旋转式制冷机功耗低、尺寸小却振动大;设计平行轴布置斯特林制冷机以减小旋转制冷机对稳定平台的振动影响。分析了旋转制冷机振动源与稳定平台框架的系统刚性特点;从系统耦合的角度,通过力学模型分析平行轴布置斯特林制冷机振动源叠加的情况,根据分析结果提出利用稳定平台刚度高的方向吸收制冷机翻倒力矩的激励,降低平台的抖动程度。最后指出平行轴布置斯特林制冷机与框架结合应用的合理性与可行性。IR imaging system on stabilized platform with gimbals is usually designed employing the linear cryocooler for small vibration. These systems trade off weight,size,and input power. Common rotary Stirling coolers take on bigger vibration than that of linear cooler though more efficient. The rotary cooler possessing parallel- axis layout could have a small effect on platform with high efficiency. This paper depicts the sources of self induced vibration and the characteristic of the stabilized platform. The rotary Stirling cooler is designed according to gimbals. Overturning moment can be countered by the bearings in platform,and then the payload jitter smaller. The new rotary Stirling cooler is compatible with the stabilized platform.

关 键 词：斯特林制冷机 平行布置陀螺稳定平台 抖动 

分 类 号：TB651[一般工业技术—制冷工程]