小速差双转子系统不平衡矢量识别方法的研究  

Research on Unbalance Identification Method of Double Rotors System with Slightly Different Rotating Speed

作　　者：曾胜[1] 汪希萱[1] 李元涌 

机构地区：[1]浙江大学化工机械研究所

出　　处：《振动工程学报》1996年第4期399-404,共6页Journal of Vibration Engineering

基　　金：国家教委博士点基金

摘　　要：不平衡矢量的识别是小速差双转子系统现场动平衡的关键，文中根据相关原理提出了单点ＤＦＴ不平衡矢量识别方法，通过理论分析确定了相关积分时间及其可能的误差。由ＷＬＺＹ－３５０型螺旋卸料离心机的实验表明，这种方法精度高、对噪声不敏感，可在实际中应用。The identification of unbalance is the crux of balancing of the double rotor with slightly different rotation speed on site. On the basis of correlation theory,this paper presents a method named Single Point DFT' to identify the unbalance.By theoretical analysis,the correlation integral time and its maximal error are determined.An experiment on WLZY 350 type horizontal spiral centrifuge verified its precision,insensibility to noise and applicability in practice.

关 键 词：相关原理 不平衡量 小速差 双转子系统 机械振动 

分 类 号：TH113.1[机械工程—机械设计及理论]