Abstract：In order to study the shock and vibration harmful effect generated by high pressure gas pipeline bursting, full-scale bursting experiments of X90 pipes were conducted in this study. In the experiments, the crack velocity, pressure variation inside the pipe and vibration velocity on the ground were measured. The experimental results were analyzed to reveal the formation mechanism and propagation law of the seismic waves generated by pipes bursting. In the data processing process, the Hilbert-Huang Transform (HHT) was used to analyze the vibration signals, and the time-frequencyenergy distribution of the signals has been shown by HHT precisely and clearly. Additionally, this paper has verified that HHT has superior performance in revealing hidden physical meanings in data and is suited for analyzing non-stationary dynamic vibration signals.
吴建源1,2，龙源2，纪冲2，李兴华2，马华源2，程良玉2. 基于希尔伯特黄变换的高压输气管道爆裂振动信号时频特性分析[J]. 振动与冲击, 2018, 37(8): 113-119.
WU Jianyuan1,2，LONG Yuan2，JI Chong2，LI Xinghua2，MA Huayuan2，CHENG Liangyu2. Time frequency analysis of vibration signals generated by high pressure gas pipeline bursting based on the Hilbert-Huang transform. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(8): 113-119.
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