高空低温低气压模拟试验装置研制  

Development of a high-altitude low-temperature and low-pressure simulation test device

作　　者：李国强 吴霖鑫[2] 姜裕标 易仕和[1] 张鑫[2] 王亚伦[3] Li Guoqiang;Wu Linxin;Jiang Yubiao;Yi Shihe;Zhang Xin;Wang Yalun(College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073,China;Low Speed Aerodynamics Institute,China Aerodynamics Research and Development Center,Mianyang 621000,China;School of Automation,Chongqing University,Chongqing 400044,China)

机构地区：[1]国防科技大学空天科学学院,长沙410073 [2]中国空气动力研究与发展中心低速空气动力研究所,绵阳621000 [3]重庆大学自动化学院,重庆400044

出　　处：《低温工程》2024年第1期1-11,30,共12页Cryogenics

基　　金：国防**预研项目(*****030601,*****010202,**20211A020092);国防**专项基金(****010202)。

摘　　要：面向飞行器高空环境相关气动基础问题研究需求,由低温模拟库嵌套低压模拟舱构建了海拔40 km以上高空大气环境模拟试验装置,采用双回路控制算法实现了低气压参数的精确快速模拟,系统工作真空度10 min内可达200 Pa以下;通过开发的制冷系统无级调节技术和冷热双回路PID自适应技术,实现了温度的稳定节能输出,温度控制精度为±0.5℃,温度均匀性优于±1℃。设计配套了环形回流风洞、螺旋桨带动力及翼型试验子系统,为开展高空环境飞行器气动性能测试提供了可靠的试验平台和技术保障。In response to the research needs of basic aerodynamic issues related to the highaltitude environment of aircraft,a high-altitude atmospheric environment simulation test device has been constructed using a low-temperature simulation library nested with a low-pressure simulation module above an altitude of 40 km.A dual loop control algorithm has been used to simulation of low-pressure parameters accurately and rapidly,and the system's working vacuum can reach below200 Pa within 10 minutes.Stable and energy-saving output of temperature has been achieved by developing step-less regulation technology for refrigeration systems and PID adaptive technology for cold and hot dual circuits.The temperature control accuracy is ± 0.5 ℃,and the temperature uniformity is better than ± 1 ℃.Designed and equipped with a circular reflux wind tunnel,propeller and airfoil testing subsystem,providing a reliable testing platform and technical support for conducting aerodynamic performance testing of high-altitude environmental aircraft.

关 键 词：高空 制冷 真空度 双回路控制 试验装置 

分 类 号：V216.8[航空宇航科学与技术—航空宇航推进理论与工程] TB663[一般工业技术—制冷工程]