基于模态和阶次分析的大型龙门铣床关键部件质量保证技术研究  

Quality assurance technology for key part of large scale milling planer based on modal and order analysis

作　　者：闫俊霞[1] 区炳显[2] 

机构地区：[1]江南大学机械工程学院先进制造中心,江苏无锡214122 [2]江苏省特种设备安全监督检验研究院无锡分院,江苏无锡214174

出　　处：《制造技术与机床》2013年第12期97-100,共4页Manufacturing Technology & Machine Tool

基　　金：国家自然科学基金资助项目(51275210)

摘　　要：对某大型龙门铣床关键部件(摆角铣头与滑枕)进行以ODS(Operating Deflection Shapes)测试方法为基础的实验模态分析,获取固有频率与固有振型,并确定结构的薄弱环节。采用阶次分析方法对铣头主传动系统在升速过程中的振动信号进行提取与分析,确定振动产生的原因。为某大型龙门铣床关键部件的质量保证提供了参考和依据。The modal of key part of large scale milling planer was analyzed adopting the testing method of ODS( Operating Deflection Shapes),natural frequency and vibration mode were obtained,the weak link of the structure was found out. Vibration signal of milling head main drive system in boosting velocity procedure was extracted and analyzed based on order analysis method,the vibrant reasons were discussed.It provide reference for quality assurance of large scale milling planer.

关 键 词：动态特性 模态试验 ODS测试方法 阶次分析 

分 类 号：TH16[机械工程—机械制造及自动化]