热镀锌沉没辊装置振动固有特性影响因素研究

发布时间：2018-03-23 03:21

本文选题：沉没辊装置　切入点：模态分析　出处：《机械科学与技术》2016年02期 　论文类型：期刊论文

【摘要】：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。
[Abstract]:In order to study the influence factors of vibration inherent characteristics of sunken roller device, the wet mode and prestressing mode analysis of sunken roller device were carried out by using finite element technique, and the fluid density was studied respectively. The influence degree and law of strip section and its tension on vibration frequency of sunken roller, The reason of frequency difference is analyzed. The results show that the frequency ratio of sinking-roller device in zinc liquid is reduced by 24.4% and 58.8% in air, and the frequency increases with the decrease of fluid density. The inherent characteristics of sunken roller device under the prestressing force such as strip section and tension have little influence, but some unsymmetrical vibration modes can reduce the working life of bearing.
【作者单位】：武汉科技大学机械自动化学院;武汉钢铁股份有限公司冷轧总厂;
【基金】：国家自然科学基金项目(1251175387)资助
【分类号】：TH113.1;TG173

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