单弯管系统直管段振动特性实验研究

发布时间：2018-04-15 06:32

本文选题：弯管转角 + 泵输流量　；参考：《科学技术与工程》2017年03期

【摘要】：单弯管作为管路系统的基本结构,其振动会影响管路系统的使用寿命。为了研究单弯管系统的直管段振动特性,针对管路系统的实用性,参考Davidson单弯管模型采用实验的方法建立单弯管测实验台架。通过改变压力、流量和弯管角度,获得单弯管系统直管段关键部位的应变和振幅变化规律,总结单弯管系统直管段的振动特性。由实验可知:同一工况下,90°单弯管系统直管段中点振幅分别比45°和60°的增大了约22.9%和92.3%;单弯管系统直管段最大应变发生在直管两端固定支撑处,同时直管中点应变也较大;60°单弯管系统直管段关键部位的应变及振幅相对45°、90°的更小,且波动性小,比较稳定,压强变化对其的影响也最小。
[Abstract]:As the basic structure of pipe system, the vibration of single bend pipe will affect the service life of pipe system.In order to study the vibration characteristics of the straight pipe section of the single bend pipe system, according to the practicability of the pipe system, an experimental bench for measuring the single bend pipe is set up with reference to the Davidson single bend pipe model.By changing the pressure, flow rate and bend angle, the variation law of strain and amplitude of the key section of straight pipe in single bend system is obtained, and the vibration characteristics of straight pipe section of single bend system are summarized.The experimental results show that the amplitude of the midpoint of the straight section of 90 掳single bend pipe system increases by 22.9% and 92.3% than that of 45 掳and 60 掳, respectively, and the maximum strain of the straight section of the single bend pipe system occurs at the fixed support at both ends of the straight pipe.At the same time, the strain and amplitude of the key part of the straight pipe system are smaller than that of 45 掳and 90 掳, and the fluctuation is small, the stability is relatively stable, and the pressure change has the least influence on the straight pipe system at the same time, the strain at the center of the straight pipe is also larger than that in the 60 掳single bend pipe system.
【作者单位】：西南石油大学油气藏地质及开发工程国家重点实验室;西南石油大学机电工程学院;西华大学;
【分类号】：U173

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