基于地脉动激振的重型数控机床模态参数测试  

Tests of Modal Parameter of Heavy-duty CNC Machine Tool Based on Ground Pulsation Excitation

作　　者：李冉 田杨 白润达 Li Ran;Tian Yang;Bai Runda

机构地区：[1]辽宁北祥重工机械制造有限公司沈阳分公司,辽宁沈阳110000 [2]辽宁工程职业学院机械工程学院,辽宁沈阳112000

出　　处：《一重技术》2025年第1期50-52,共3页CFHI Technology

摘　　要：由于重型数控机床具有体积大,自重大等特点,传统激励检测方式不能满足检测需要。为了准确计算并测得动态参数,首先采用有限元分析进行仿真,求出前两阶模态振型,在此基础上制定传感器布置方案,进而提出一种基于地脉动激振的重型数控机床动态参数测试方法,通过立式机床验证方法的可行性。Due to the characteristics of heavy-duty CNC machine tool such as large size and heavy weight,traditional excitation detection method can not meet the detection requirement.In order to accurately calculate and measure the dynamic parameters,finite element analysis is applied for simulation and calculation of the modal vibration shapes of the two primary orders and development of the sensor layout scheme on this basis.Thus,a dynamic parameter testing method for heavy-duty CNC machine tool based on ground pulsation excitation is proposed,and the feasibility of the method is verified by the vertical machine tool.

关 键 词：重型数控机床 地脉动 动态参数 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]