摘要
0.6m暂冲式跨超声速风洞是一座引射下吹式暂冲型三音速增压风洞,风洞具有结构组成复杂、系统控制精度要求高、运行方式多样和运行安全要求严格的特点;对风洞流场控制系统硬件结构和功能需求进行了分析,开展了基于NI PXI RT嵌入式实时硬件结构和LabVIEW软件开发平台的风洞流场控制系统研制工作。重点在控制系统硬件组成、软件结构和功能设计、信号采集与处理、控制策略和安全策略方面开展了设计、研究和调试工作。应用结果表明:该系统具有调节快、精度高、稳定性好、安全可靠的特点,成功实现了暂冲式跨超声速风洞复杂流程控制系统的应用软件开发。
The 0.6 m intermittent transonic and supersonic wind tunnel is a ejection type. blow down. trisonic, pressurized wind tunnel , the composition of structure was complex, high control accuracy was required, the running mode was various and the strictly operation safety was required. Analyzed the hard structure and functional requirement of the flow field control system, the design research of flow field control system based on National Instrument PXI embedded Real Time hardware and LabVIEW development platform was carried on. The architecture and function, signal acquisition and processing, control and safety strategy design of the software were mainly focused on. Prac- tical application shows that the system has virtues of exact and fast regulation, stable working, safe and reliable, which has successfully real- ized application development for complex process control system.
出处
《计算机测量与控制》
2017年第11期50-54,共5页
Computer Measurement &Control
关键词
风洞
流场
总压
控制策略
wind tunnel
flow field
total pressure
control strategy
