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热镀锌生产线出锌锅段带钢-气垫耦合系统振动特性研究

李路雷 蔡忠清 惠升 徐培民

李路雷, 蔡忠清, 惠升, 徐培民. 热镀锌生产线出锌锅段带钢-气垫耦合系统振动特性研究[J]. 机械科学与技术, 2015, 34(4): 526-532. doi: 10.13433/j.cnki.1003-8728.2015.0408
引用本文: 李路雷, 蔡忠清, 惠升, 徐培民. 热镀锌生产线出锌锅段带钢-气垫耦合系统振动特性研究[J]. 机械科学与技术, 2015, 34(4): 526-532. doi: 10.13433/j.cnki.1003-8728.2015.0408
Li Lulei, Cai Zhongqing, Hui Sheng, Xu Peimin. Vibration Analysis Characteristics of Coupling System Composed of Steel Strip and Air Cushion in Continuous Hot-dip Galvanizing Processes[J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(4): 526-532. doi: 10.13433/j.cnki.1003-8728.2015.0408
Citation: Li Lulei, Cai Zhongqing, Hui Sheng, Xu Peimin. Vibration Analysis Characteristics of Coupling System Composed of Steel Strip and Air Cushion in Continuous Hot-dip Galvanizing Processes[J]. Mechanical Science and Technology for Aerospace Engineering, 2015, 34(4): 526-532. doi: 10.13433/j.cnki.1003-8728.2015.0408

热镀锌生产线出锌锅段带钢-气垫耦合系统振动特性研究

doi: 10.13433/j.cnki.1003-8728.2015.0408
基金项目: 

国家自然科学基金项目(50975003)与安徽工业大学研究生创新研究基金项目(2012043)资助

详细信息
    作者简介:

    李路雷(1989-),硕士研究生,研究方向为机械系统动力学和机械设备动态监测及故障诊断,lilulei@126.com

    通讯作者:

    徐培民,教授,博士,xupeimin@ahut.edu.cn

Vibration Analysis Characteristics of Coupling System Composed of Steel Strip and Air Cushion in Continuous Hot-dip Galvanizing Processes

  • 摘要: 为获得平衡状态下带钢变形、气垫区压力以及带钢-气垫耦合系统的动特性,将带钢近似为恒张力作用下的轴向运动Euler-Bernoulli梁,根据描述气垫区气体动力学特性的经典附壁边界理论,建立带钢和气垫区气体压力的控制方程及耦合条件。引入轴向运动带钢变形的格林函数,以压力卷积的形式显式表达带钢位移,采用Newton-Raphson法对气垫区的平衡压力和带钢平衡变形进行数值求解。将带钢和气垫区气体压力控制方程分别在其平衡位置处线性化,得到描述系统线性响应的变系数偏微分方程组。通过Galerkin法对模型进行全局离散,用广义矩阵特征值问题的数值解法得到带钢的固有频率。研究结果表明:适当减小带钢运行速度并增大带钢张力有利于带钢的稳定运行,而气垫箱供应压力对带钢动特性的影响极为有限。
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出版历程
  • 收稿日期:  2013-09-07
  • 刊出日期:  2015-04-05

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