摘要
借助有限元分析软件ANSYS,对一种具有径向进给功能的管子车床主轴系统进行三维建模,然后选择六面体单元Solid95进行网格划分和模态求解,计算出主轴系统的前五阶固有频率及其振型,验证了主轴系统的固有频率远高于发生共振的临界频率。通过加减谐载荷,在模态分析的基础上进行谐响应分析,计算出主轴系统在激振力作用下的响应位移与响应应力,得到系统的动力响应与系统振动频率的曲线,即幅频曲线,验证了该主轴结构能经受住不同频率的各种正弦载荷。经过以上动态特性的研究,获得了机床主轴组件的动态参数,为机床主轴组件设计和结构改进提供了重要依据。
This paper carried out three-dimensional modeling for pipe lather which has the spindle of radial feeding function based on ANSYS,and then selected hexahedral unit called Solid95 for meshing and modal solution to calculate the five first-order natural frequency and vibration mode of the spindle system and finally verified that the natural frequency of the spindle system is much higher than the critical frequency of resonance.By adding harmonic load,did the harmonic response analysis based on the modal analysis,calculated displacement and stress responses of the system under the action of the exciting force and obtained the system dynamics and the system frequency response curve,that is,amplitude-frequency curve which verified the spindle structure can withstand a variety of different frequency sine load,the dynamic property was studied and the dynamic parameters were obtained after the studies above,which provide important foundation for the design and improvement of structure of pipe lather spindle.
出处
《新技术新工艺》
2010年第6期14-16,共3页
New Technology & New Process
