一种分体积木和功能分层式结构的多适应型纹影系统研制及应用  

Development and application of a multi adaptive schlieren system with segmented building blocks and functional layered structure

作　　者：黄昊宇[1] 凌忠伟[1] 刘为杰 夏语 HUANG Haoyu;LING Zhongwei;LOI Weijie;XIA Yu(High Speed Institute of China Aerodynamics Research&Development Center,Mianyang,Sichuan 621000,China)

机构地区：[1]中国空气动力研究与发展中心高速所,四川绵阳621000

出　　处：《自动化与仪器仪表》2024年第6期296-300,共5页Automation & Instrumentation

摘　　要：2 m×2 m高速自由射流风洞纹影系统具有仪器光轴位置高焦距长、多测量工位移动范围宽、多部件协同控制环节多、试验过程振动大、现场设备有干涉等特点,为了满足其可靠性、维护性、安全性、抗振性的设计要求,项目有针对性地创新发展了主反射镜装调形式、功能分层结构、多维手动/电动相结合的调节方式、定位减振方法,克服了高精度研磨、多光学部件耦合、装配应力影响大等困难,建立了一套Φ800 mm口径分体积木和功能分层式结构的多适应型纹影系统。该纹影系统通过多轮静动态试验验证和应用,从试验结果可以看出,该大型纹影系统运行稳定可靠,成像效果良好,纹影视频画面清晰,无明显条纹和阴影;系统功能完善,电控+手动的多自由度光路调节方式使用便捷,定位精准;图像采集软件自动化程度高,系统具有较高的普适性,可满足2米×2米高速自由射流风洞大部分试验任务需要。The development of a 2 m×2 m high-speed free jet wind tunnel schlieren system has the characteristics of high instrument optical axis position,long focal length,wide range of multiple measurement stations,multiple collaborative control links of multiple components,high vibration during the test process,and interference with on-site equipment.In order to meet the design requirements of reliability,maintenance,safety,and vibration resistance,the project innovatively develops the main reflector installation form,functional layered structure,the multi-dimensional manual/electric combined adjustment method and positioning vibration reduction method,,have overcome difficulties such as high-precision grinding,coupling of multiple optical components,and large assembly stress impact,and have established a set ofΦ800 multi adaptive schlieren system with segmented building blocks and functional layered structure.From the test results,it can be seen that the large schlieren system operates stably and reliably,with good imaging effects,clear schlieren video images,and no obvious stripes or shadows;The system has complete functions,and the electronic control+manual multi degree of freedom light path adjustment method is convenient to use with precise positioning;The image acquisition software has a high degree of automation and the system has high universality,which can meet the requirements of most testing tasks in the 2 m×2 m high-speed free jet wind tunnel are required.

关 键 词：高超声速风洞 分体积木 多适应型 纹影系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]