柔性石墨纸轧制装置动态特性仿真分析

摘要

针对传动装置改进后的柔性石墨纸轧制装置,利用ANSYS Workbench软件建立了柔性石墨纸轧制装置辊子的有限元模型,考虑轴承支承刚度在一定范围内变化时,研究轴承支承刚度与辊子固有频率的变化规律,得出辊子的一阶、二阶、三阶等固有频率的范围.在此基础上,利用RecurDyn建立了柔性石墨纸轧制装置的多体动力学系统模型,得出从动辊子所受力矩的时域、频域波形;将频率成分与辊子的固有频率进行对比:最高频的齿轮啮合2倍频率与二阶、三阶固有频率有27％以上裕度,柔性石墨纸轧制装置可以平稳运行.最后,通过实测的柔性石墨纸厚度数据验证了装置的平稳运行.%Using ANSYS Workbench to build finite element model of the roll for the rolling device that transmission device was improved.Consider different bearing stiffness,analysis the change law of the natural frequency of the roller under different bearing stiffness,and obtain range of the first、second、third natural frequency of the roll.On that basis,using RecurDyn to build the multibody dynamic model of the rolling device system,obtain the time domain waveform and frequency domain waveform of the roll torque;compare the frequency component with the natural frequency of the roll to ensure the smoothing run of the rolling device.At last,the smooth operation of the device is verified by measured date.