Low-Frequency Acoustic Signals Propagation in Buried Pipelines

Low-Frequency Acoustic Signals Propagation in Buried Pipelines

Xehetasun bibliografikoak
Parent link:Journal of Physics: Conference Series
Vol. 671 : Innovations in Non-Destructive Testing (SibTest 2015).— 2016.— [012031, 6 p.]
Egile nagusia: Ovchinnikov A. L.
Erakunde egilea: Национальный исследовательский Томский политехнический университет (ТПУ) Институт неразрушающего контроля (ИНК) Лаборатория № 62 (Акустико-эмиссионных методов неразрушающего контроля)
Beste egile batzuk: Lapshin B. M. Boris Mikhailovich
Gaia:Title screen
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.
Режим доступа: по договору с организацией-держателем ресурса
Argitaratua: 2016
Gaiak:
электронный ресурс
труды учёных ТПУ
низкочастотные сигналы
акустические сигналы
трубопроводы
нефтепроводы
теплопроводность
Sarrera elektronikoa:http://dx.doi.org/10.1088/1742-6596/671/1/012031
http://earchive.tpu.ru/handle/11683/33738
Formatua: Baliabide elektronikoa Liburu kapitulua
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=647175

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