Abstract
The article deals with the issues concerning acoustic signals propagation in the large-diameter oil pipelines caused by mechanical action on the pipe body. Various mechanisms of signals attenuation are discussed. It is shown that the calculation of the attenuation caused only by internal energy loss, i.e, the presence of viscosity, thermal conductivity and liquid pipeline wall friction lead to low results. The results of experimental studies, carried out using the existing pipeline with a diameter of 1200 mm. are shown. It is experimentally proved that the main mechanism of signal attenuation is the energy emission into the environment. The numerical values of attenuation coefficients that are 0,14- 0.18 dB/m for the pipeline of 1200 mm in diameter, in the frequency range from 50 Hz to 500 Hz, are determined.
| Original language | English |
|---|---|
| Article number | 012031 |
| Journal | Journal of Physics: Conference Series |
| Volume | 671 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 18 Jan 2016 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Low-frequency acoustic signals propagation in buried pipelines. / Ovchinnikov, A. L.; Lapshin, Boris Mikhaylovich.
In: Journal of Physics: Conference Series, Vol. 671, No. 1, 012031, 18.01.2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Low-frequency acoustic signals propagation in buried pipelines
AU - Ovchinnikov, A. L.
AU - Lapshin, Boris Mikhaylovich
PY - 2016/1/18
Y1 - 2016/1/18
N2 - The article deals with the issues concerning acoustic signals propagation in the large-diameter oil pipelines caused by mechanical action on the pipe body. Various mechanisms of signals attenuation are discussed. It is shown that the calculation of the attenuation caused only by internal energy loss, i.e, the presence of viscosity, thermal conductivity and liquid pipeline wall friction lead to low results. The results of experimental studies, carried out using the existing pipeline with a diameter of 1200 mm. are shown. It is experimentally proved that the main mechanism of signal attenuation is the energy emission into the environment. The numerical values of attenuation coefficients that are 0,14- 0.18 dB/m for the pipeline of 1200 mm in diameter, in the frequency range from 50 Hz to 500 Hz, are determined.
AB - The article deals with the issues concerning acoustic signals propagation in the large-diameter oil pipelines caused by mechanical action on the pipe body. Various mechanisms of signals attenuation are discussed. It is shown that the calculation of the attenuation caused only by internal energy loss, i.e, the presence of viscosity, thermal conductivity and liquid pipeline wall friction lead to low results. The results of experimental studies, carried out using the existing pipeline with a diameter of 1200 mm. are shown. It is experimentally proved that the main mechanism of signal attenuation is the energy emission into the environment. The numerical values of attenuation coefficients that are 0,14- 0.18 dB/m for the pipeline of 1200 mm in diameter, in the frequency range from 50 Hz to 500 Hz, are determined.
UR - http://www.scopus.com/inward/record.url?scp=84960145405&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84960145405&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/671/1/012031
DO - 10.1088/1742-6596/671/1/012031
M3 - Article
AN - SCOPUS:84960145405
VL - 671
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012031
ER -