数控机床定位胶结合面建模及参数识别方法  

Modeling and Parameter Identification for Positioning Adhesive Joint Surface of Machine Tools

作　　者：刘雅荣[1] 

机构地区：[1]长春职业技术学院工程技术分院,长春130033

出　　处：《组合机床与自动化加工技术》2015年第4期67-70,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金资助项目(51075045)

摘　　要：文章提出采用正交异性模型的方法设置定位胶结合面的材料参数。首先分析了目前虚拟材料方法的不足,然后推导了正交异性模型结合部3个方向平移刚度和2个方向弯曲刚度的求解方法,之后以质量块和定位胶组成系统的模态性能为对象,研究了材料参数Ey、Gxy、Gzy的求解方法,最后对系统的模态性能进行了仿真分析。结果表明系统固有频率仿真误差绝对值小于1.69%,振型与实际吻合很好,从而验证了文中方法的正确性。Material parameters of positioning adhesive joint surface were set using orthotropic model. Weakness of the commonly used virtual material method was analysed firstly. Then,three translational stiffnesses and two bending stiffness of the orthotropic model were deduced. Taking a system composed by two mass blocks and a positioning adhesive joint surface as an example,relationship between modal characteristics and material parameters were deduced. At last,modal characteristics of the system were simulated. The simulation results showthat absolute values of the natural frequencies were less than 1. 69%,and the modal shapes were in good agreement with the actual shapes.

关 键 词：数控机床 结合面建模 参数识别 正交异性模型 

分 类 号：TH145.9[一般工业技术—材料科学与工程] TG65[机械工程—机械制造及自动化]