%0 Journal Article
%T 热镀锌沉没辊装置振动固有特性影响因素研究<br>Influential Factors on Vibration Inherent Characteristics of Sink Roll Device of Hot Dip Galvanized
%A 黄毫军
%A 王兴东
%A 李友荣
%A 刘傲
%A 陈晓文
%J 机械科学与技术
%D 2016
%X 为研究沉没辊装置振动固有特性的影响因素,采用有限元技术,开展了沉没辊装置的湿模态和预应力模态分析,分别研究了流体密度、带钢断面及其张力等因素对沉没辊装置振动频率的影响程度及规律,并分析造成频率差异的原因。结果表明:沉没辊装置在锌液中振动时的频率比在空气中减小24.4%~58.8%,且频率随着流体密度的减小而增大;沉没辊装置在带钢断面及其张力等预应力作用下的固有特性影响很小,但一些具有不对称性的振型会减少轴承的工作寿命。<br>Sink roll device is a key functional component of zinc pot of hot dip galvanized line. To study the influential factors on vibration inherent characteristics of sink roll device, this paper carries out the wet modal analysis and the prestressed modal analysis of sink roll device based on finite element method and mathematical models. The effects of fluid density, strip section and its tension on the sink roll device of vibration frequency and regularity are studied, and the cause of the difference of frequency is analyzed. The results show that, sink roll device vibration in liquid zinc is reduced when the frequency ratio of 24.4%~58.8% in the air, and the natural frequencies of fluid density decrease with increasing. The sink roll device in strip section and tension prestressed loads has little effect on the natural frequency, but some of the asymmetry of the natural mode of vibration will reduce the bearing service life
%K 沉没辊装置
%K 模态分析
%K 固有特性
%K 预应力&lt
%K br&gt
%K finite element method
%K inherent characteristics
%K mathematical models
%K modal analysis
%K natural frequencies
%K prestressed
%K sink roll device
%K stability
%K vibration mechanisms
%U http://journals.nwpu.edu.cn/jxkxyjs/CN/abstract/abstract6292.shtml