高压安注系统振动过大机理分析  

Excessive Vibration Mechanism Analysis Of High Pressure Injection System

作　　者：王赤虎[1] 谢永诚[1] 姚伟达[1] 梁星筠[1] 张可丰[1] 张万平[1] 

机构地区：[1]上海核工程研究设计院,200233

出　　处：《核电工程与技术》2006年第1期29-35,共7页Nuclear Power Engineering and Technology

摘　　要：采用敲击法对高压安注系统的相关管道、阀门和系统进行了固有频率测量，对试验循环流量工况下固定测点的振动信号进行了互功率谱和相干分析，应用管内流速和流动噪声功率谱密度对系统进行流致振动的原因分析，以及对管系和楼面之间的振动耦合性分析，从而找出系统振动过大的综合原因。With striking method, natural frequencies on related pipeline, valve and system are measured. Vibration signals in fixed testing points are analysed by mutual power spectrum and coherence property under the work condition of experimental circulation flow. The cause analysis for fluid induced vibration is carried out with the applications of pipeline flow velocity and flow noise power spectral density. And the analysis for vibration coupling property between pipeline and floor is accomplished. According to results, system excessive vibration causes are studied.

关 键 词：振动测量 固有频率 信号分析 耦合 

分 类 号：TM623.7[电气工程—电力系统及自动化] TH211.601[机械工程—机械制造及自动化]