模态分析在多联涡旋压缩机组振动分析中的应用  

Application of modal test in vibration analysis of parallel compressor unit

作　　者：杨攀 Yang Pan(Danfoss(Tianjin)Co.,Ltd.)

机构地区：[1]丹佛斯(天津)有限公司

出　　处：《制冷与空调》2020年第3期87-91,共5页Refrigeration and Air-Conditioning

摘　　要：本文介绍了常见的并联机组管路振动的原因及其排查方式。针对某型号机组排气管路剧烈振动的问题,对机组结构和排气管路进行实验模态分析,确定机组结构和排气管路发生共振,通过结构优化改变其固有频率,使管路振动值降低。This paper introduces the common causes of piping vibration of parallel units and their checking methods.Aiming at the problem of intense vibration of the discharge piping of a certain type of unit,the experimental modal analysis of the unit structure and discharge piping is operated to determine the resonance,through structural optimization,the natural frequency was moved away from the excitation frequency and the vibration of discharge piping is reduced.

关 键 词：并联机组 振动 固有频率 模态分析 

分 类 号：TB6[一般工业技术—制冷工程]