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http://dx.doi.org/10.5050/KSNVN.2008.18.7.693

Acoustic Wave Propagation Characteristics Corresponding to the Cut-off Frequency in Gas Pipeline  

Kim, Min-Soo (인하대학교 기계공학과)
Lee, Sang-Kwon (인하대학교 기계공학과)
Jang, Sang-Yup (한국가스공사 연구개발원)
Koh, Jae-Pil (한국가스공사 연구개발원)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.18, no.7, 2008 , pp. 693-700 More about this Journal
Abstract
High-Pressure gas Pipeline which is buried in underground has the Possibility that will be exposed to unexpected dangerous impact of construction equipment. To protect from this kind of danger, the real-time health monitoring system of the high-pressure gas pipeline is necessary. First of all, to make the real-time health monitoring system clearly, the acoustic wave propagation characteristics which are made from various construction equipment impacts must be identified. In link of technical development that prevents the damage of high-pressure gas pipeline, this paper gives FEM(finite element method) and BEM(boundary element method) solutions to identify the acoustic wave propagation characteristic of the various impact input signals which consist of Direc delta function and convolution signal of 45 Hz square signal and random signal.
Keywords
Gas Pipeline; Impact Wave; Acoustic Wave Propagation; Cut-off Frequency; Finite Element Method; Boundary Element Method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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