一种伪随机射流激励的实现方法  

A Method of Realizing Pseudo Random Jet Excitation

作　　者：赵超[1] 伍耐明[1] 李佳威[1] 刘畅[1] 

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100191

出　　处：《工业控制计算机》2016年第11期75-77,共3页Industrial Control Computer

摘　　要：为了采用系统辨识的方法建立进气道数学模型,论述了设计一种基于Lab VIEW软件编程产生M序列信号的方法,通过硬件I/O设备连接计算机将电平信号输出,使用高频继电器驱动电磁阀,在提供稳定气源的情况下,电磁阀出口测量到气流幅值稳定的M序列形式射流信号,射流总压达到43.3k Pa,有效满足进气道系统辨识输入信号的要求。For establishing the mathematical model inlet system identification methods,this paper discusses the design based on Lab VIEW software programming to produce M sequence signal method,hardware I / O devices connected to the computer level output signal,electromagnetic valves drived by high-frequency relay,in the case of providing a stable source of gas,M series jet signal measured at the electromagnetic valves outlet.The jet total pressure is 43.3k Pa which effectively meet the requirements of the inlet system identification input signal.

关 键 词：S形进气道 系统辨识 M序列 伪随机射流 LABVIEW 

分 类 号：V211.48[航空宇航科学与技术—航空宇航推进理论与工程]