自由活塞型斯特林制冷机的设计方法

An Optimal Design of the Free-piston Stirling Refrigerator

文中认为自由活塞型斯特林制冷机是一个工作于谐振态的双自由度振动系统,在此前提下提出了一个综合考虑了热力学平衡和动力学平衡的计算模型。该模型引入了排出器与压缩活塞运动对另一方运动产生的阻尼,从而将排出器与压缩活塞的运动连接起来。并以此为基础提出了一种从频率特性出发进行动力学设计。

Free-piston Stirling refrigerator is a two freedom resonant system. Under this premise, the paper establishes a calculation model basing on combined consideration of thermodynamic and dynamic analyses. The model connects piston and displacer by the damping factors due to interactive motion. Furthermore, this paper also gives a kind of optimal design method which is based on frequency characteristics of refrigerator system and checked by heat balance calculation.