https://www.scipedia.com/wd/index.php?action=history&feed=atom&title=Lapshin_Ovchinnikov_2016aLapshin Ovchinnikov 2016a - Revision history2026-05-08T19:26:04ZRevision history for this page on the wikiMediaWiki 1.27.0-wmf.10https://www.scipedia.com/wd/index.php?title=Lapshin_Ovchinnikov_2016a&diff=192275&oldid=prevScipediacontent: Scipediacontent moved page Draft Content 269504261 to Lapshin Ovchinnikov 2016a2021-01-28T17:31:20Z<p>Scipediacontent moved page <a href="/public/Draft_Content_269504261" class="mw-redirect" title="Draft Content 269504261">Draft Content 269504261</a> to <a href="/public/Lapshin_Ovchinnikov_2016a" title="Lapshin Ovchinnikov 2016a">Lapshin Ovchinnikov 2016a</a></p>
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</td></tr></table>Scipediacontenthttps://www.scipedia.com/wd/index.php?title=Lapshin_Ovchinnikov_2016a&diff=192274&oldid=prevScipediacontent: Created page with " == 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. Va..."2021-01-28T17:31:17Z<p>Created page with " == 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. Va..."</p>
<p><b>New page</b></p><div><br />
== Abstract ==<br />
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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.<br />
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== Original document ==<br />
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The different versions of the original document can be found in:<br />
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* [http://earchive.tpu.ru/handle/11683/33738 http://earchive.tpu.ru/handle/11683/33738]<br />
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* [https://doi.org/10.1088/1742-6596/671/1/012031 https://doi.org/10.1088/1742-6596/671/1/012031]<br />
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* [http://stacks.iop.org/1742-6596/671/i=1/a=012031/pdf http://stacks.iop.org/1742-6596/671/i=1/a=012031/pdf],<br />
: [http://stacks.iop.org/1742-6596/671/i=1/a=012031?key=crossref.4de96932e246fc5cf9c4016d8b34db38 http://stacks.iop.org/1742-6596/671/i=1/a=012031?key=crossref.4de96932e246fc5cf9c4016d8b34db38],<br />
: [http://dx.doi.org/10.1088/1742-6596/671/1/012031 http://dx.doi.org/10.1088/1742-6596/671/1/012031] under the license http://iopscience.iop.org/info/page/text-and-data-mining<br />
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* [https://iopscience.iop.org/article/10.1088/1742-6596/671/1/012031/pdf https://iopscience.iop.org/article/10.1088/1742-6596/671/1/012031/pdf],<br />
: [https://core.ac.uk/display/80131610 https://core.ac.uk/display/80131610],<br />
: [https://academic.microsoft.com/#/detail/2511774236 https://academic.microsoft.com/#/detail/2511774236]</div>Scipediacontent