摘要
以高频电液激振系统载荷力闭环控制以及提升系统鲁棒性为目标,提出了一种基于单神经元PID算法的电液激振控制系统。首先,阐述电液激振系统的结构组成,分别建立电液激振系统以及控制器的数学模型;然后,利用Matlab/Simulink平台对激振系统载荷力的幅值与偏移闭环进行仿真研究;最后,以电液疲劳试验机作为对象,采用阶跃试验测试单神经元PID算法作用下电液激振系统载荷力幅值与偏移的实际控制效果。试验结果表明:单神经元PID算法下,电液激振系统在不同工作频率输出载荷力的幅值与偏移闭环响应迅速,鲁棒性强。当频率为800 Hz时,载荷力幅值达到稳态所需要的调节时间为2.7 s。载荷力范围变动性最大为1.43%。在电液激振系统中应用单神经元PID控制算法可以实现载荷力幅值与偏移的闭环控制。
To target the closed-loop control of system load force and improve the system s robustness,an electro-hydraulic vibration control system based on the single-neuron PID algorithm is proposed.A mathematical model is created for the electro-hydraulic vibration system;Then,the Matlab/Simulink platform is utilized for the closed-loop simulation study of the amplitude and offset of the load force;Finally,the simulation results are verified experimentally on a test bench.Results indicate that the system s load force response is rapid and robust under the single-neuron PID algorithm,with an amplitude adjustment time of 2.7 s at 800 Hz.The maximum load force range variability is 1.43%.The load force amplitude and offset can be closed-loop controlled with single-neuron PID control algorithm in the electro-hydraulic vibration system.
作者
贾文昂
陈泽吉
陈统中
倪子帆
李胜
JIA Wenang;CHEN Zeji;CHEN Tongzhong;NI Zifan;LI Sheng(Mechanical Engineering College,Zhejiang University of Technology,Hangzhou 310023,China;Key Laboratory of Special PurposeEquipment and Advanced Processing Technology,Ministry of Education,Zhejiang University of Technology,Hangzhou 310023,China)
出处
《浙江工业大学学报》
北大核心
2025年第3期310-315,345,共7页
Journal of Zhejiang University of Technology
基金
浙江省自然科学基金资助项目(LY21E050015)
国家重点研发计划项目(2019YFB2005202)。
关键词
电液激振系统
单神经元PID
激振阀
载荷力幅值与偏移闭环
electro-hydraulic vibration system
the single-neuron PID
vibration valve
load force amplitude and offset closed loop
