摘要
根据孔板诱发流体脉动压力的试验测量结果,利用ANSYS软件的随机振动分析功能对孔板扰流诱发的管道振动响应进行了计算,分析了脉动压力的相关性对管道振动响应的影响。在此基础上,提出了一种简化计算方法,并将其计算结果与详细方法的计算结果进行了对比。结果表明:该简化方法便于操作、计算时间短,计算得到的管道流致振动响应结果满足保守性要求。
In this paper, based on the experimental results of power spectrum density of wall pressure fluctuations, the response of pipe vibration caused by orifice plate was calculated with random vibration analysis function of ANSYS code. The effect of correlation between wall pressure fluctuations on the response of pipe vibration was discussed. Furthermore, a simplified method was given, and the calculation result was compared with that of the detailed calculation. It was shown that the simplified method was conven, ient and efficient. The response of the pipe flow-induced vibration calculated with simplified method was conservative, so it can be used in the engineering evaluation.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2009年第3期22-26,共5页
Nuclear Power Engineering
关键词
流致振动
孔板
功率谱密度
管道
Flow-induced vibration, Orifice, Power spectrum density, Pipe
