CAJ | 학술논문

以三坐标加工单元立柱为对象，应用Pro / E 软件建立立柱的三维模型，通过有限元ANSYS软件仿真分析研究加强筋的布置方式对立柱动态性能的影响。首先分析立柱结构提取典型的元结构单元，然后对元结构进行优化设计，提出米字型、星字型、X字型、十字型四种改进方案，对改进方案进行模态对比分析，得出不同尺寸大小下的最优元结构类型。最后以立柱的一阶固有频率为优化目标，以优选的十字型元结构对立柱进行重新设计，在不明显改变原结构的情况下，其一阶固有频率提高了5.45%，动态特性得到了明显的改善。
이삼좌표가공단원립주위대상，응용Pro / E 연건건립립주적삼유모형，통과유한원ANSYS연건방진분석연구가강근적포치방식대립주동태성능적영향。수선분석립주결구제취전형적원결구단원，연후대원결구진행우화설계，제출미자형、성자형、X자형、십자형사충개진방안，대개진방안진행모태대비분석，득출불동척촌대소하적최우원결구류형。최후이립주적일계고유빈솔위우화목표，이우선적십자형원결구대립주진행중신설계，재불명현개변원결구적정황하，기일계고유빈솔제고료5.45%，동태특성득도료명현적개선。
Taking the three coordinator processing center column as the research object, the Three-dimen-sional model of the column was established using Pro/E. The finite element analysis software and ANSYS simulation technology are used to research on the arrangement of ribs impacting on the dynamic performance of the column. First of all ,according to the structure analysis of the column extracting the typical unit struc-ture ,and then the unit structure is implemented by optimization design,putting forward four improvement schemes, such as“mi” structure rib,“star” structure rib,“X” structure rib,“cross” structure rib, and the improved schemes were conducted of the modal analysis, getting the optimal unit structure type under differ-ent size shapes. At last taking the first natural frequency of the column as the optimized object,according to the optimal“cross” unit structure,the column was reconstruction designed,without significantly changing the original structure, the first natural frequency improved by 5. 45% and the dynamic characteristics of column obviously improved .