电厂输水管系振动分析  

Study on Vibration of Conveying Water Piping System in Power Plant

作　　者：谭平[1] 付行军[1] 王斌[2] 陈杰[2] 王少宁[2] 程懋华[1] 

机构地区：[1]东南大学振动中心,南京210096 [2]江苏省电力设计院,南京210024

出　　处：《汽轮机技术》2004年第2期110-112,共3页Turbine Technology

基　　金：国家重点基础研究发展规划项目(编号:G19998020300);江苏省电力设计院项目(编号:8550102018)

摘　　要：对电厂的一段管系的流体脉动导致的管系振动进行了分析。采用有限元建模方法,考虑了管系的复杂支承、管系设备等因素对管系振动的影响,提出了减少管道振动的措施。这些措施包括调整模态频率、振型参数、改变支承、弯头角度等。The techniques of FEM are used to model piping system that includes the pipe, all piping supports, hangers, snubbers, and devices attached to the pipe. All these items can influence the pipe vibration patterns .The piping system vibration response from fluid pressure pulsation is analyzed and the methods are put forward for reduction level of pipe vibration. These methods can be used to adjust the piping system vibration amplitudes, frequencies, and the pipe modal shape. It can also be used to identify defective supports, incorrectly bend angle, and the locations of maximum deflection requiring additional supports.

关 键 词：管道 振动 压力脉动 控制 

分 类 号：TM365[电气工程—电机] TB123[理学—工程力学]