中高速卫生纸机烘缸积水的振动特征分析

The Vibration Analysis of Water Accumulation in Dryer of Medium and High Speed Tissue Paper Machines

关键词:  烘缸积水  状态监测  振动分析  频域特征

Key Words:water accumulation in dryer  condition monitoring  vibration analysis  frequency characteristics

摘要:通过振动特征来判断烘缸是否积水是一个很有实用价值的研究课题。本研究在分析中高速卫生纸机烘缸结构和积水状态的基础上，借助于振动基础方程和运动力学模型分析，给出了中高速卫生纸机烘缸积水状态下运行的振动特征。利用自主开发的振动测试平台对实际测试数据进行快速傅里叶变换分析发现，通过对中高速卫生纸机烘缸操作侧轴承振动信号的频谱分析，可以提取中高速卫生纸机烘缸积水的振动特征，用于对烘缸是否积水和积水程度的在线判断。

Abstract:It is a very practical research topic to judge whether the dryer has accumulated water from its vibration characteristics.Based on the study of the structure and water accumulation state of the dryer of medium and high speed tissue paper machines， the vibration characteristics of the dryer with water accumulation were presented by means of the vibration basic equation and the motion mechanics model analysis.Using the self-developed vibration test platform to complete FFT analysis of the practice test data， it was concluded that the frequency spectrum analysis of the vibration signal from the bearings at the operating side of the dryer of paper machines， could be used to find the vibration characteristics of water accumulating which could be further used for online judgment of whether there is accumulated water in dryer of the medium and high speed tissue paper machines.