Abstract: The strong vibration problem of the outlet pipelines of the reciprocating compressor group of Yaha oil gathering station is investigated. Employing the PAP software developed by Xian Jiaotong University, a practical and effective model of the pipeline system is established. The natural frequencies of the outlet pipelines, the natural frequencies of the gas system in the pipes, and the pulsation of the gas flow are calculated, and the cause of vibration is found. According to the results of computation, a practical scheme is presented to control the system vibration. The vibration of the pipeline system is reduced significantly.

Key words: vibration and wave, pipelines vibration, PAP software, numerical analysis

摘要： 针对牙哈作业区中压机组排气管系发生剧烈振动的问题，利用西安交通大学研究开发的管道振动分析软件包PAP，建立管道系统的有效的力学模型，对排气管系的机械固有频率、管道内气体系统固有频率及气流脉动值进行分析计算找到了产生振动的根源，根据分析计算提出了有效解决方案，使管道系统的振动得到了大幅降低。

关键词: 振动与波, 管道振动, PAP软件, 数值分析