多轴协调运动控制在某连续式风洞应用研究

Multi-axis Coordinated Motion Control Application Research on Some Continuous Wind Tunnel

摘要:

为解决风洞试验过程中可靠地、精确地控制半柔壁系统型面变化,必须使电动推杆多轴协调同步运动;以某连续式风洞半柔壁系统为例,采用西门子T-CPU和S120伺服单元搭建硬件系统,运用梯形或S形加速与减速方式,保证同启同停进行同步,并将实际位置值实时与理论计算值进行比对,协调同步运动电动推杆,从而精确控制半柔壁系统型面变化;试验结果表明,该方法能够实现半柔壁机构在运动中多轴协调同步,保证机构运行安全;该系统在国内风洞半柔壁控制领域尚属首例,理论方法高效且通用性较强可广泛用于使用任何品牌和型号伺服控制系统控制半柔或全柔系统。

Abstract:

To solve problem in the wind tunnel test process reliably, accurately control the semi-flexible nozzle system surface change, must make coordinated multi-axis synchronized motion electric putter. A continuous wind tunnel semi-flexible nozzle system as an example, Siemens T-CPU and S120 servo unit built hardware systems, acceleration and deceleration mode using the trapezoidal or S shape, to ensure synchronization with start and stop, and the value of the actual position in real time with the calculated values for comparison, coordinated synchronized movement of electric putter, so precise control of semi-flexible nozzle system surface changes. The test results show that the method can realize the semi-flexible nozzle in motion of multi-axis coordinated synchronized and ensure the safe operation of mechanism. The control system in the field of domestic wind tunnel semi-flexible nozzle is the first, the high efficiency and versatility theoretical methods can be widely used for any brand and model of servo control system to control the semi-flexible nozzle or full-flexible nozzle.