摘要
机械元动作装配单元可靠性是整机功能可靠性的重要构成,元动作单元工作过程中振动异常是导致其故障频发的重要因素。因此,采取有效的振动控制策略对降低元动作单元运行故障、提高单元可靠性和整机性能具有良好的工程意义。结合主动控制思想采用简易、精准的作动装置建立了一种智能的振动控制系统。为了提升控制系统中智能位移作动器的进给精度,设计了变论域自适应模糊PID控制器,并通过仿真分析了控制系统的可行性。仿真结果表明,变论域自适应模糊PID控制器下的系统响应具有极低的超调量、较少调整时间和趋于零的稳态误差。此项研究为提高机械产品使用可靠性提供了一种新的振动控制技术手段。
The reliability of mechanical meta action assembly unit is an important component that affects the functional reliability of the whole machine.The abnormal vibration in the working process of the unit is an important factor leading to frequent failure rate.Therefore,it is of great engineering significance to take effective vibration control strategy to reduce the operation failure of the unit and improve the reliability and performance of the whole machine.Combined with the idea of active control,an intelligent vibration control system is established by using simple and accurate actuator.In order to improve the feed accuracy of intelligent displacement actuator,a variable universe adaptive fuzzy PID controller is designed,and the feasibility of the control system is analyzed by simulation.The simulation results show that the system response under the variable universe adaptive fuzzy PID controller has very low overshoot,less adjustment time and steady-state error tending to zero.This research provides a new control technology for improving the reliability of mechanical products.
作者
葛红玉
王拓
杨满芝
张传伟
GE Hong-yu;WANG Tuo;YANG Man-zhi;ZHANG Chuang-wei(School of Mechanical Engineering,Xi’an University of Science and Technology,Shaanxi Xi’an 710054,China)
出处
《机械设计与制造》
北大核心
2024年第8期191-196,201,共7页
Machinery Design & Manufacture
基金
国家自然科学基金项目(51705417,51805428)
陕西省自然科学基础研究计划项目(2019JQ-086)
国家重点研发项目(2018YFB1703402)。
关键词
机械元动作单元
振动主动控制
智能位移作动器
变论域自适应模糊PID
Mechanical Meta-Action Unit
Active Vibration Control
Intelligent Displacement Actuator
Variable Theory Domain Adaptive Fuzzy PID
