工程设计学报2024，Vol.31Issue(4)：428-437,10.DOI:10.3785/j.issn.1006-754X.2024.03.210
考虑质量分布的雨蚀叶片横向振动分析与自抗扰解耦控制
Transverse vibration analysis and active disturbance rejection decoupling control of rain erosion blades considering mass distribution
摘要
Abstract
In order to improve the stability and safety of the high-speed rain erosion resistance test device,the transverse vibration characteristics of rain erosion blades were analyzed with the rotor-rain erosion blade system as the research object.Firstly,a four-degree-of-freedom transverse vibration model of rotor-rain erosion blade system was established considering the effects of rain erosion blade vibration,mass eccentricity of rotary-blade connecting disc and unbalanced magnetic pull force of rotor.Then,the motion differential equation of rotor-rain erosion blade system was established based on Lagrange equation,and the Runge-Kutta algorithm was used to solve the equation numerically,in order to observe the distribution law of axis trajectory and vibration amplitude of rotor and rain erosion blade.Considering the nonlinear strong coupling relationship between rotor and rain erosion blade,an active disturbance rejection decoupling control method was adopted to suppress the transverse vibration of rain erosion blade,and the parameters of the extended state observer were adjusted by pole assignment and bandwidth.Finally,an experimental platform was set up to analyze the vibration characteristics of the rain erosion blade before and after adopting active disturbance rejection decoupling control,and the results were compared with the numerical analysis results.The results showed that the vibration of rotor-rain erosion blade system exceeded the standard before the active disturbance rejection decoupling control was adopted,but the transverse vibration of rain erosion blade could be effectively suppressed after the active disturbance rejection decoupling control was adopted,which verified the feasibility and effectiveness of the control method.The research results can provide theoretical reference for the structural optimization of high-speed rain erosion resistance test device.关键词
转子-雨蚀叶片系统/横向振动/数值分析/自抗扰/解耦控制Key words
rotor-rain erosion blade system/transverse vibration/numerical analysis/active disturbance rejection/decoupling control分类
机械制造引用本文复制引用
方春龙,王梦君,周鹤,李松梅..考虑质量分布的雨蚀叶片横向振动分析与自抗扰解耦控制[J].工程设计学报,2024,31(4):428-437,10.基金项目
国家自然科学基金资助项目(51972186) （51972186）
山东省自然科学基金资助项目(ZR2020ME114) （ZR2020ME114）
