南京航空航天大学学报（英文版）2026，Vol.43Issue(1)：55-72,18.DOI:10.16356/j.1005-1120.2026.01.005
用于暂冲式跨声速风洞流场的前馈动态矩阵控制器设计
A Dynamic Matrix Controller with Feedforward for Flow Field in Intermittent Transonic Wind Tunnels
杜宁 1朱文杰 1姚丹 1邹欣蕾 1秦建华1
作者信息
- 1. 中国空气动力研究与发展中心高速空气动力研究所,绵阳 621000,中国
- 折叠
摘要
Abstract
Intermittent transonic wind tunnels demand high-precision and stable control of Mach number and stagnation pressure during the variation of model angle of attack,while the traditional proportional integral derivative(PID)control strategy fails to achieve the Mach number control error target of 0.001 and is inept at resisting flow field disturbances caused by rapid changes in angle of attack.Aiming at this problem,this study takes the intermittent transonic wind tunnel of China Aerodynamics Research and Development Center as the research object and optimizes the wind tunnel control system for its characteristics of multi-input multi-output(MIMO),large time delay and nonlinearity.First,the control system structure is reconstructed by introducing ejection pressure as a controlled variable to reduce the time lag from the main pressure regulating valve to the test section,and selecting static pressure instead of Mach number as a controlled variable to weaken the nonlinear coupling between Mach number and static pressure.Second,based on the first-order plus dead time process model of the wind tunnel,a MIMO dynamic matrix controller(DMC)for wind tunnel flow field is designed.Considering the predictable nature of angle-of-attack changes,a feedforward compensation strategy is integrated into the DMC to mitigate the pressure disturbance in the test section caused by the variation of angle of attack.Third,a complete tuning strategy for DMC parameters including sampling time,prediction horizon,control horizon and weight coefficients is formulated according to the wind tunnel model parameters under different Mach numbers.Experimental validations through practical blowing tests are carried out at Mach numbers of 0.578,0.675,0.714 and 0.822 to compare the control performance of the proposed feedforward DMC strategy with the traditional PID control and DMC without feedforward compensation.The results show that the proposed strategy stably controls the Mach number error within 0.001,and significantly improves the stagnation pressure control accuracy and anti-disturbance capability of the wind tunnel flow field.Moreover,the strategy exhibits excellent repeatability and robustness under different Mach number conditions.This study effectively solves the problem of high-precision flow field control under the rapid change of angle of attack in intermittent transonic wind tunnels,and provides a technical reference for the flow field control of complex fluid test devices such as hypersonic wind tunnels.关键词
暂冲式跨声速风洞/流场控制/动态矩阵控制器/前馈补偿/多输入多输出系统/参数整定Key words
intermittent transonic wind tunnel/flow field control/dynamic matrix controller(DMC)/feedforward compensation/multi-input multi-output(MIMO)system/parameter tuning分类
航空航天引用本文复制引用
杜宁,朱文杰,姚丹,邹欣蕾,秦建华..用于暂冲式跨声速风洞流场的前馈动态矩阵控制器设计[J].南京航空航天大学学报（英文版）,2026,43(1):55-72,18.
