某型瓦楞辊的现场振动测试与模态参数识别  

Vibration Test and Modal Analysis for Corrugated Rollers

作　　者：秦仙蓉[1] 张 张氢[1] 孙远韬[1] 聂飞龙[1] 

机构地区：[1]同济大学机械与能源工程学院,上海201804

出　　处：《机电一体化》2013年第8期49-51,68,共4页Mechatronics

基　　金：国家863计划资助项目(2009AA043000);国家自然科学基金资助项目(50975207;51075304);中央高校基本科研业务费专项资金资助项目(20113145;20112548)

摘　　要：针对瓦楞辊工作过程中产生的振动与噪声等现象,高速运行下在机架上对瓦楞辊传动系统进行了现场振动测试,使用随机子空间法从测试数据中识别了结构的前十阶模态频率及相应的振型和阻尼比,并与有限元分析结果进行比较。结果表明,通过机架的振动情况可较为准确地提取出上、下瓦楞辊的各阶频率;有限元模型能够准确地反映瓦楞辊的动态特性,可以为瓦楞辊结构的故障诊断及变形预测提供参考。Vibration testing of corrugated roller under high-speed operation was taken. According to the data got from the test, the first ten modal parameters, namely modal frequency, damping ratio and modal shape, have been identified successfully by stochastic subspace identification method, and they were compared with those from finite element model of ANSYS. It is shown that finite element model of ANSYS can reflect the dynamic characteristics of corrugated roller, which can be used for failure diagnosis and deformation prediction.

关 键 词：瓦楞辊 振动测试 参数识别 模态分析 

分 类 号：TB533.1[理学—物理]