基于单面影响系数法的动平衡测量研究
2016-01-28苗玉彬
徐 凯,程 念,苗玉彬
(上海交通大学机械与动力工程学院,上海 200240)
A Study on the Measurement of Active Balance Based on Single-plane Influence Coefficient Method
XU Kai, CHENG Nian, MIAO Yubin
(School of Mechanical Engineering,Shanghai Jiao Tong University, Shanghai 200240, China)
基于单面影响系数法的动平衡测量研究
徐凯,程念,苗玉彬
(上海交通大学机械与动力工程学院,上海 200240)
A Study on the Measurement of Active Balance Based on Single-plane Influence Coefficient Method
XU Kai, CHENG Nian, MIAO Yubin
(School of Mechanical Engineering,Shanghai Jiao Tong University, Shanghai 200240, China)
摘要:基于单面影响系数法,提出了一种动平衡测量方法。介绍了单面影响系数法的测量原理、整个测量系统的组成,并采用整周期采样法实现了对振动信号的提取。实验结果表明,该动平衡测量方法能够准确得出系统的动平衡量,对于消除旋转机构中的动平衡量具有一定的应用价值,也为其他场合下的动平衡测量提供了参考。
关键词:旋转机械;动平衡测量;单面影响系数法;整周期采样法
中图分类号:TP29
文献标识码:A
文章编号:1001-2257(2015)07-0007-04
收稿日期:2015-02-09
基金项目:国家重大科学仪器设备开发专项项目(2012YQ15008703)
作者简介:徐凯(1989-),男,安徽淮南人,硕士研究生,研究方向为工业自动化及振动噪声控制;程念(1992-),男,湖北武汉人,硕士研究生,研究方向为设备智能检测。

Abstract:The method for active balance measurement based on single-plane influence coefficient method is described. The measurement principle of single-plane influence coefficient method, the composition of the entire measuring system and the signal extraction algorithm based on full-period sampling method is given in detail. Experimental results show that the active balance measurement method can obtain the magnitude and phase of active balance accurately. So this measurement method is of great value in eliminating the active balance in rotational mechanism, and can also serve as a reference when measuring active balance in other situations.
Key words:rotational mechanism;measuring of active balance;single-plane influence coefficient method;full-period sampling
0引言
旋转机械在工业生产中应用广泛,如汽轮机转子、风机和脱粒机中的滚筒以及电机转子等。转子的不平衡是这些机械设备的主要振动源。减小振动可以延长机械的使用寿命、改善其性能和降低噪声,同时也为节约能源创造条件。
消除动平衡需要动平衡的测量和动平衡的校正两个基本过程。其中动平衡的测量是消除动平衡的基础。为此,采用基于单面影响系数法的动平衡测量方法,以高性能DSP F2808芯片作为测控单元,在振动信号提取上采用整周期采样法,实现了数字化的动平衡测量。……
