郑州大学学报（工学版）2025，Vol.46Issue(6)：112-117,134,7.DOI:10.13705/j.issn.1671-6833.2025.06.003
基于光滑整形器的水电定子测量臂残余振动抑制
Residual Vibration Suppression of Hydropower Stator Measurement Arm Based on Smooth Shaper
摘要
Abstract
The measurement of stator roundness in hydro-generators traditionally relied on manually pushing the measurement arm to multiple test points for evaluation.This process was time-consuming and labor-intensive.To improve measurement efficiency,a stator roundness measurement system was designed,utilizing a smooth input shaper(SIS)to suppress residual vibrations during the stopping phase of the measurement arm.Firstly,simula-tions were performed to compare the SIS shaper with existing zero-vibration(ZV),zero-vibration-derivative(ZVD),and extra-insensitive(EI)shapers in terms of residual vibration,time delay,and sensitivity.Secondly,an experimental test platform was used to evaluate the effectiveness of these shapers.Finally,field tests were con-ducted at the Yangqu Hydropower Station in Qinghai Province.Results demonstrated that the SIS exhibited the strongest robustness,with minimal impact on vibration suppression performance when system parameters were im-precise.Even with inaccuracies in damping ratio and natural frequency,the SIS achieved effective vibration sup-pression,reducing the peak residual vibration at the measurement arm tip by 91.6%.The SIS-integrated measure-ment system maintained measurement accuracy while reducing vibration decay time by 87.9%during stator roundness assessments.关键词
输入整形/残余振动抑制/光滑整形器/大型测量臂Key words
input shaping/residual vibration suppression/smooth shaper/large measuring arm分类
信息技术与安全科学引用本文复制引用
梁杰,胡城君,杨炯,高琳..基于光滑整形器的水电定子测量臂残余振动抑制[J].郑州大学学报（工学版）,2025,46(6):112-117,134,7.基金项目
国家重点研发计划(2023YFB3306600) （2023YFB3306600）
