摘要
对脆硬材料的超声振动辅助微磨削温度场有限元仿真进行研究。首先建立了超声振动辅助微磨削的能量分配比模型,基于能量分配比模型得到进入工件的热流量;其次,为验证理论解析模型,基于ANSYS建立了超声振动辅助微磨削的有限元模型,采用APDL语言对超声振动辅助微磨削温度场进行三维有限元仿真,仿真结果直观地揭示了三维温度场的形态特征和趋势规律。最后研究分析了不同磨削参数下石英玻璃磨削温度场的变化规律和边界尺寸效应。
The temperature field finite element simulation of brittle hard materials in ultrasonic vibration aided micro end grinding（ UAMEG） is studied. Firstly,the energy distribution ratio model of UAMEG is established.Based on energy distribution ratio model the heat flow transferred to the workpiece is achieved. Secondly,in order to verifying the theoretical analytical model,the finite element model of UAMEG is established based on ANSYS.The three-dimensional finite element simulation of UAMEG is achieved through APDL language. The simulation results intuitively reveal the morphological characteristics and variation tendency of the three-dimensional temperature field. Finally,the trend of grinding temperature field and the border size effect of silica glass are analyzed in different grinding parameters.
出处
《科学技术与工程》
北大核心
2016年第12期62-67,82,共7页
Science Technology and Engineering
基金
河北省自然科学基金项目(E2012202088)
东南大学MEMS教育部重点实验室开放课题基金资助
关键词
微磨削
硬脆材料
有限元
超声振动
micro-grinding
hard and brittle materials
finite element
ultrasonic vibration
