摘要
立柱是立式加工中心的重要支承件,其性能对机床的加工质量、可靠性以及稳定性等指标具有显著的影响。以Solid Works软件建立某立式加工中心立柱的实体模型,应用ANSYS Workbench软件对其在典型工况下进行静力学分析、模态分析与谐响应分析。分析结果与模态分析结果相吻合,1、2阶固有频率较低,容易出现共振,有必要对其结构进行优化。运用折衷规划法和平均频率法建立立柱动静态特性的联合拓扑优化数学模型,利用ANSYS软件对其结构进行多目标拓扑优化设计,从而为提高加工中心动静态性能和减重提供技术途径。
Column is the important supporting part of the vertical machining center, which the performance has significant effect on the processing quality, reliability, stability and other index of the machine tool. The entity model of some vertical machining center column is established by SoildWorks software,which using ANSYS Workbench software to make static analysis and modal analysis in typical working conditions. Besides, harmonic response analysis of the column is carried out, the result of analysis coin- cides with modal analysis. One and two order natural frequency is low, which arousing resonance phenomenon easily, and it is nec- essary to optimize the structure. The mathematical model of dynamic-static characteristic topology optimization is established by compromise programming method and average frequency method, the multi-objective topology optimization design is performed by using ANSYS. It provides a technical way for the optimization goal of improving the dynamic and static performance and reducing weight of the machining center.
出处
《现代制造工程》
CSCD
北大核心
2017年第1期70-75,81,共7页
Modern Manufacturing Engineering
基金
国家自然科学基金资助项目(51275432)
四川理工学院人才引进项目(2012RC19)
四川理工学院研究生创新基金项目(y2015003)
关键词
立式加工中心
立柱
动静态特性
多目标拓扑优化
vertical machining center
column
dynamic and static characteristic
multi-objective topology optimization
