立式加工中心计算模态与试验模态相关性分析  

Correlation Analysis Between Computational Mode and Test Mode of Vertical Machining Center

作　　者：杨军 王林 赵彦鹏 董应明 韩玉稳 YANG Jun;WANG Lin;ZHAO Yan-Peng;DONG Ying-Ming;HAN Yu-Wen(Yunnan Branch of China National Machinery Institute Group Co.,Ltd.,Kunming Yunnan650031,China;Yunnan Key Laboratory of Mechatronics Application Technology,Kunming Yunnan650031,China)

机构地区：[1]中国机械总院集团云南分院有限公司,云南昆明650031 [2]云南省机电一体化应用技术重点实验室,云南昆明650031

出　　处：《机电产品开发与创新》2022年第6期133-135,共3页Development & Innovation of Machinery & Electrical Products

摘　　要：模态验证技术首要考虑的就是有限元模型与试验模型的相关性分析,利用节点及自由度映射、频率与振型相关性分析、模态匹配,确定计算分析结果和试验结果的误差准则;通过相关性分析,确定计算模态分析结果和试验模态分析结果的验证关系。本文采用有限元分析软件Patran Nastran进行模态分析,应用B&K模态测试系统进行模态测试,并对试验模态与计算模态进行相关性分析,提高立式加工中心动力学模型的准确性。The primary consideration of the modal verification technology is the correlation analysis between the finite element model and the test model,using the nodal and DOF mapping,frequency and mode shape correlation analysis,and modal matching to determine the error criteria for the calculation and analysis results and the test results;Correlation analysis to determine the verification relationship between the calculated modal analysis results and the experimental modal analysis results.In this paper,the finite element analysis software Patran Nastran is used for modal analysis,the B&K modal testing system is used for modal testing,and the correlation analysis between the experimental modal and the calculated modal is carried out to improve the accuracy of the dynamic model of the vertical machining center.

关 键 词：试验模态 计算模态 相关性分析 立式加工中心 

分 类 号：TH12[机械工程—机械设计及理论]