基于NX NASTRAN的医用X光机C臂有限元分析  

Finite Element Analysis on C-arm of Medical X-ray Machine Based on NX NASTRAN

作　　者：王洪亮 刘倩 顾宸嘉 张瑞宏 奚小波 缪宏 WANG Hongliang;LIU Qian;GU Chenjia;ZHANG Ruihong;XI Xiaobo;MIAO Hong(Nanjing CNI Energy Engineering Co.,Ltd.,Nanjing 210008,China;Sinopec Nanjing Engineering&Co.,Ltd.(SEG Nanjing),Nanjing 211100,China;Yangzhou University,Yangzhou 225009,China)

机构地区：[1]南京中核能源工程有限公司,南京210008 [2]中石化南京工程公司,南京211100 [3]扬州大学,江苏扬州225009

出　　处：《机械工程师》2020年第2期114-116,共3页Mechanical Engineer

基　　金：江苏省农业科技自主创新资金项目（CX(17)3013）;江苏省农机三新工程（NJ2018-15）;南京市科技计划项目（201716059、201805062）;扬州大学江都高端装备工程技术研究院项目(YDJD201703)

摘　　要：利用UG自有的有限元软件NX NASTRAN对C形臂进行3个静态工况的结构强度及固有频率分析,得到C形臂3个典型工况的应力和相对平面位移量及前10阶的固有频率。静态典型工况仿真结果表明,C形臂最大应力工况为下转60°的工况,此工况在实际中很少用到,固有频率计算的特征值也为C形臂的动力学性能设计及优化提供了设计依据。计算结果与定性分析的结果一致。Using NX NASTRAN in UG to analyze the structural strength and natural frequency of the C-arm under three static conditions, the stress and relative plane displacement of the C-arm under three typical conditions are obtained, and the first 10 steps Natural frequency. The simulation results of typical static working conditions show that the maximum stress working condition of the C-arm is the working condition when turning down 60 °. This condition is rarely used in practice. The calculated eigenvalues based on its natural frequency also provide design basis for the dynamic performance design and optimization of the C-arm. The calculation results are consistent with the results of qualitative analysis.

关 键 词：C形臂 NXNASTRAN 静载强度 模态分析 

分 类 号：TH123.4[机械工程—机械设计及理论]