基于自抗扰控制的风洞尾支杆多维减振研究  

Multi-dimensional vibration reduction of wind tunnel sting based on active disturbance rejection control

作　　者：杨诗瑶 邓力嘉 沈星[1] Yang Shiyao;Deng Lijia;Shen Xing(State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机械结构力学及控制国家重点实验室,江苏南京210016

出　　处：《南京理工大学学报》2024年第6期669-678,共10页Journal of Nanjing University of Science and Technology

基　　金：航空科学基金(2024Z009052003)。

摘　　要：针对传统悬臂尾支杆因其低刚度、低阻尼的特点而引起飞行器模型与支撑系统产生大幅、低频振动的问题,提出一种基于自抗扰的风洞尾支杆多维振动控制技术。首先设计了基于压电叠堆的尾支杆多维主动减振系统,并进行有限元分析与系统辨识,获取其模态特性;其次通过带宽参数化对自抗扰控制(ADRC)算法的参数进行初步整定,降低复杂度,并引入粒子群优化(PSO)算法对控制器参数进行进一步优化。基于PSO的自抗扰控制方法具有较强的抗干扰能力和快速响应能力。在基于DSPACE的地面控制实验平台将该文算法与传统算法进行实验对比,验证了算法的有效性。实验结果表明:与传统PID算法相比,系统在该文算法下的振动衰减时间明显缩短、稳态幅值和振动能量均明显降低。To address the issue of large amplitude,low-frequency vibrations between the aircraft model and the support system caused by the low stiffness and damping characteristics of traditional cantilever tail support rods,a disturbance rejection-based multi-dimensional vibration control technology for the wind tunnel sting is proposed.Firstly,a multi-dimensional active vibration reduction system for the sting based on a piezoelectric stack is designed,followed by finite element analysis and system identification to obtain its modal characteristics.Next,the parameters of the active disturbance rejection control(ADRC)algorithm are initially tuned through bandwidth parameterization to reduce complexity,and a particle swarm optimization(PSO)algorithm is introduced for further optimization of the controller parameters.The particle swarm-optimized ADRC method demonstrates strong disturbance rejection capability and fast response performance.Experiments conducted on a ground control platform based on DSPACE compare the proposed algorithm with traditional methods,validating the effectiveness of the algorithm.Experimental results show that,compared to the conventional PID algorithm,the proposed algorithm significantly shortens the vibration attenuation time and notably reduces both the steady-state amplitude and vibration energy.

关 键 词：压电叠堆 振动主动控制 自抗扰控制 粒子群优化 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置] V211.752[自动化与计算机技术—控制科学与工程]