混杂纤维人造花岗岩超精密摆线轮成形磨床床身的动静态特性研究

利用正交试验法,设计并制作了不同配合比的混杂纤维人造花岗岩试件,并对试件进行了抗压强度测试。利用SolidWorks建立了超精密摆线轮成形磨床三维模型,在ANSYS Workbench平台对相似结构的混杂纤维人造花岗岩、未添加纤维人造花岗岩以及铸铁(HT250)摆线轮成形磨床床身分别进行有限元分析。结果表明:(1)添加混杂纤维可以提高人造花岗岩材料强度;(2)混杂纤维人造花岗岩床身的等效变形最小,等效应力低,床身前5阶固有频率最高。

Dynamic and static characteristics of the ultra precision cycloid wheel forming grinding machine tool bed of hybrid fiber artificial granite

By means of orthogonal test, the hybrid fiber artificial granite specimens with different mixing ratios were designed and fabricated. The finite element analysis of artificial granite with similar structure hybrid fiber, artificial granite without fiber and cast iron (HT250) cycloid wheel forming grinder bed was carried out on the ANSYS Workbench platform.The results show that: (1) adding hybrid fiber can improve the strength of artificial granite material; (2) the equivalent deformation of hybrid fiber artificial granite bed is the smallest, the equivalent stress is low, and the natural frequency of the first 5 orders is the highest.