摘要
为了分析含间隙等非线性因素对叶片辊轧机传动系统的动态特性影响,建立了考虑轧辊轴承座水平间隙、齿侧间隙、综合啮合误差以及时变啮合刚度等因素的叶片辊轧机两级传动系统的非线性动力学模型。采用RungeKutta法对非线性微分方程组进行求解。研究了不同激励频率以及不同轧辊轴承座水平间隙对辊轧机传动系统的动态特性影响。分析表明,激励频率以及间隙的增加使系统由周期运动进入了混沌运动,且振动幅值增大,对上下轧辊齿轮传动系统影响大一些,对上轧辊二级齿轮-齿条传动系统的影响小一些。
In order to analyze the effect of nonlinear factors such as clearance on dynamic characteristics of blade rolling mill transmission system,nonlinear dynamic model of blade rolling mill secondary transmission system was established where bearing chock horizontal gap,the backlash,the transmission error and the time-varying stiffness were considered.Nonlinear differential equations were solved by using Runge-Kutta method. The effects of different exciting frequency and different bearing chock horizontal gap on rolling mill transmission system were studied. The results showed that the increase of backlash and exciting frequency causes the system from harmonic vibration to chaos,and vibration amplitude increased. The increases of backlash and exciting frequency have larger influence on upper and lower gears of rolling mill than the secondary gear and rack of upper roller＇s.
出处
《钢铁》
CAS
CSCD
北大核心
2015年第10期45-53,共9页
Iron and Steel
基金
辽宁省教育厅创新团队资助项目(LT2013009)
辽宁省教育厅资助项目(L2014124)
