CAJ | 학술논문

在线自动平衡技术被公认为是解决旋转机械转子不平衡故障的最佳方案，而不平衡振动相位的识别精度是影响在线自动平衡技术平衡速度和精度的一项关键技术。为了寻求一种精确的相位提取方法，该文分别介绍了互功率法、跟踪滤波法和全相位FFT法，且基于LabVIEW虚拟仪器平台，分别编写了3种算法的仿真程序，并最终定量对比了3种算法在整周期和非整周期两种不同采集工况下的相位提取精度。结果表明，在两种采集条件下，全相位FFT算法均具有较高的相位提取精度。
재선자동평형기술피공인위시해결선전궤계전자불평형고장적최가방안，이불평형진동상위적식별정도시영향재선자동평형기술평형속도화정도적일항관건기술。위료심구일충정학적상위제취방법，해문분별개소료호공솔법、근종려파법화전상위FFT법，차기우LabVIEW허의의기평태，분별편사료3충산법적방진정서，병최종정량대비료3충산법재정주기화비정주기량충불동채집공황하적상위제취정도。결과표명，재량충채집조건하，전상위FFT산법균구유교고적상위제취정도。
Online automatic balancing is considered as the best solution to solve the mass imbalance faults of rotating machinery , and the phase exaction accuracy of imbalance vibration is one of the key technologies to affect the balancing speed and accuracy of the balancing system .To find out an accurate phase exaction method , three methods , such as cross -power method , tracking-filter method and all-phase FFT method , were introduced in this paper , and three simulation programs were respectively writ-ten for the three methods based on the LabVIEW platform .Under the whole cycle sampling and non -in-teger-period sampling conditions , the phase exaction accuracies of the three methods were compared quantitatively .The results demonstrate that the all -phase FFT method has a higher phase exaction accu-racy under two sampling conditions .