Research on Mach number control compensation decoupling for wind tunnel

作     者：Zhao, Shu-Jun Chi, Yan Shi, Hong-Chang Tang, Xiao-Dong 

作者机构：China Aerodynamics Research and Development Center Mianyang 621006 China 

出 版 物：《Liuti Lixue Shiyan yu Celiang/Experiments and Measurements in Fluid Mechanics》 (Liuti Lixue Shiyan yu Celiang)

年 卷 期：2005年第19卷第1期

页      面：79-82+108页

核心收录：

主　　题：Compensation factors Decoupling Multi-input multi-output system Wind tunnel field 

摘      要：There exist a close coupling relation between the wind tunnel flow field parameters, total pressure and Mach number. It is great important to solve the coupling problem of total pressure and Mach number, and useful to improve the control accuracy of system, to reduce adjustment time, to reforce system stability and robust. First, objected to a wind tunnel field flow, its logic model is constructed. Then, from the view point of compensation decoupling, decoupling arithmetic based on multi-variable sub-space and decoupling compensation factors is given, the parameter decoupling model of wind tunnel flow field is constructed. Last, a series of simulation experiment proves the effectiveness of the arithmetic.