基于COMSOL的线性压缩机动力学仿真与实验验证  

Simulation of Linear Compressors with COMSOL and Its Experimental Verification

作　　者：孔家煊 赵钦宇 晁春阳 周文杰 王博[1] 程路 甘智华[1] 徐军 KONG Jiaxuan;ZHAO Qinyu;CHAO Chunyang;ZHOUWenjie;WANG Bo;CHENG Lu;GAN Zhihua;XU Jun(Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province,Institute of Refrigeration and Cryogenics,Zhejiang University,Hangzhou 310027,China;Institute of Energy utilization and automation,Hangzhou Dianzi University,Hangzhou 310018,China;China Stirling Engine Manufacturing Co.,Ltd,Rizhao 276800,Shandong,China)

机构地区：[1]浙江大学制冷与低温研究所浙江省制冷与低温技术重点实验室,杭州310027 [2]杭州电子科技大学能量利用与自动化研究所,杭州310018 [3]日照华斯特林科技有限公司,山东日照276800

出　　处：《真空与低温》2021年第1期57-61,共5页Vacuum and Cryogenics

基　　金：国家自然科学基金项目(51806191)。

摘　　要：为了提出一种有效且简易的线性压缩机设计和优化方案,本文针对一款商用Cryo S 100小型斯特林制冷机,推导出其动磁式线性压缩机中气体阻尼力和气体弹簧力的表达式,并采用COMSOL软件将压缩机动力模型和电磁模型相耦合,建立了联合仿真模型,模拟了不同负载下压缩机的动力特性,模拟结果与SAGE相吻合。通过空载下对线性压缩机的瞬态位移特性的测试和稳态下对电机比推力特性的测试,验证了耦合模型的准确性。Based on the purpose of producing a brief and efficient scheme for design of linear compressors,we obtained an expression of gas damping force and gas elastic force in the moving-magnet linear compressor.Then a couple model,which combined pneumatic model with electromagnetic model,was built in COMSOL with a commercial smallscale Stirling Cryocooler prototype.The dynamic properties under different load condition were simulated and the result agreed well with the result in SAGE.Then the tests of specific thrust property and displacement of piston in different conditions were carried out to validate the model.

关 键 词：线性压缩机 比推力 斯特林制冷机 COMSOL 

分 类 号：TB65[一般工业技术—制冷工程]