ANALYSIS OF THE INFLUENCE OF FILTRATION ON THE SENSITIVITY OF THE CUMULANT METHOD OF DETECTING THE ACOUSTIC SIGNALS OF LEAKAGE
An experimental study of the ratio of cumulants of acoustic signals of fluid leakage in a pipeline and interference is carried out. It is shown that the use of bandpass filtering increases the ratio of cumulants by orders of magnitude. The purpose of the article is to analyze the sensitivity of the...
Збережено в:
| Дата: | 2018 |
|---|---|
| Автори: | , , |
| Формат: | Стаття |
| Мова: | Russian |
| Опубліковано: |
Institute of Engineering Thermophysics of NAS of Ukraine
2018
|
| Онлайн доступ: | https://ihe.nas.gov.ua/index.php/journal/article/view/292 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Thermophysics and Thermal Power Engineering |
Репозитарії
Thermophysics and Thermal Power Engineering| id |
oai:ojs2.ihenasgovua.s43.yourdomain.com.ua:article-292 |
|---|---|
| record_format |
ojs |
| spelling |
oai:ojs2.ihenasgovua.s43.yourdomain.com.ua:article-2922018-12-14T18:58:03Z ANALYSIS OF THE INFLUENCE OF FILTRATION ON THE SENSITIVITY OF THE CUMULANT METHOD OF DETECTING THE ACOUSTIC SIGNALS OF LEAKAGE АНАЛИЗ ВЛИЯНИЯ ФИЛЬТРАЦИИ НА ЧУВСТВИТЕЛЬНОСТЬ КУМУЛЯНТНОГО МЕТОДА ОБНАРУЖЕНИЯ АКУСТИЧЕСКИХ СИГНАЛОВ УТЕЧКИ Beregun, V.S. Krasilnikov, A.I. Polobyuk, T.A. An experimental study of the ratio of cumulants of acoustic signals of fluid leakage in a pipeline and interference is carried out. It is shown that the use of bandpass filtering increases the ratio of cumulants by orders of magnitude. The purpose of the article is to analyze the sensitivity of the cumulant method of detecting fluid leaks in a pipeline based on the statistical processing of the acoustic leakage signal and interference generated by the moving fluid flow. To analyze the possibilities of a cumulant leak detection method, it is necessary to have specific values of cumulants of real leakage signals and interference, which can be obtained as a result of a full-scale experiment. To generate a leakage signal, an installation is used that allows physical modeling of the leakage of liquid in the pipe in standing water. To simulate a leak in a pipe, a nozzle with copper walls and a through hole with a diameter of 1 mm was used, and a pressure of 6 atmospheres was maintained to produce leakages in the pipe. As a interference, noise generated by a moving fluid flow in the pipeline is used. The interference was recorded on the pipeline of the distribution network at a pressure of 7 atmospheres, the volume flow of the coolant averaged more than 1000 liters per hour, which ensured the flow rate of the fluid at which its motion can be considered turbulent. The results of experimental studies of acoustic signals of fluid leakage in the pipeline and interference showed that the main interference power is concentrated in the 0...5 kHz band, and the leakage signal is in the band 5...10 kHz. With the use of bandpass filtering, the ratio of the mean square deviation of the leakage signals and interference increased by more than an order of magnitude for the frequency bands 5...10 kHz and 10...15 kHz, as compared with the absence of filtering. In this case, the ratio of the absolute values of the cumulants of the leakage signal and the interference is much greater than the ratio of the variances, and the ratio of cumulants increases substantially with increasing order. This confirms the sensitivity of high-order cumulants to the presence of a leak. Проведено экспериментальное исследование отношения кумулянтов акустических сигналов утечки жидкости в трубопроводе и помехи. Показано, что применение полосовой фильтрации увеличивает отношение кумулянтов на порядки. Проведено експериментальне дослідження відношення кумулянтів акустичних сигналів витоку рідини в трубопроводі та завади. Показано, що застосування смугової фільтрації збільшує відношення кумулянтів на порядки. Institute of Engineering Thermophysics of NAS of Ukraine 2018-06-20 Article Article application/pdf https://ihe.nas.gov.ua/index.php/journal/article/view/292 10.31472/ihe.2.2018.11 Thermophysics and Thermal Power Engineering; Vol 40 No 2 (2018): Industrial Heat Engineering; 78-83 Теплофизика и Теплоэнергетика; Vol 40 No 2 (2018): Industrial Heat Engineering; 78-83 Теплофізика та Теплоенергетика; Vol 40 No 2 (2018): Industrial Heat Engineering; 78-83 2663-7235 ru https://ihe.nas.gov.ua/index.php/journal/article/view/292/236 Copyright (c) 2018 Industrial Heat Engineering http://creativecommons.org/licenses/by/4.0 |
| institution |
Thermophysics and Thermal Power Engineering |
| baseUrl_str |
|
| datestamp_date |
2018-12-14T18:58:03Z |
| collection |
OJS |
| language |
Russian |
| format |
Article |
| author |
Beregun, V.S. Krasilnikov, A.I. Polobyuk, T.A. |
| spellingShingle |
Beregun, V.S. Krasilnikov, A.I. Polobyuk, T.A. ANALYSIS OF THE INFLUENCE OF FILTRATION ON THE SENSITIVITY OF THE CUMULANT METHOD OF DETECTING THE ACOUSTIC SIGNALS OF LEAKAGE |
| author_facet |
Beregun, V.S. Krasilnikov, A.I. Polobyuk, T.A. |
| author_sort |
Beregun, V.S. |
| title |
ANALYSIS OF THE INFLUENCE OF FILTRATION ON THE SENSITIVITY OF THE CUMULANT METHOD OF DETECTING THE ACOUSTIC SIGNALS OF LEAKAGE |
| title_short |
ANALYSIS OF THE INFLUENCE OF FILTRATION ON THE SENSITIVITY OF THE CUMULANT METHOD OF DETECTING THE ACOUSTIC SIGNALS OF LEAKAGE |
| title_full |
ANALYSIS OF THE INFLUENCE OF FILTRATION ON THE SENSITIVITY OF THE CUMULANT METHOD OF DETECTING THE ACOUSTIC SIGNALS OF LEAKAGE |
| title_fullStr |
ANALYSIS OF THE INFLUENCE OF FILTRATION ON THE SENSITIVITY OF THE CUMULANT METHOD OF DETECTING THE ACOUSTIC SIGNALS OF LEAKAGE |
| title_full_unstemmed |
ANALYSIS OF THE INFLUENCE OF FILTRATION ON THE SENSITIVITY OF THE CUMULANT METHOD OF DETECTING THE ACOUSTIC SIGNALS OF LEAKAGE |
| title_sort |
analysis of the influence of filtration on the sensitivity of the cumulant method of detecting the acoustic signals of leakage |
| title_alt |
АНАЛИЗ ВЛИЯНИЯ ФИЛЬТРАЦИИ НА ЧУВСТВИТЕЛЬНОСТЬ КУМУЛЯНТНОГО МЕТОДА ОБНАРУЖЕНИЯ АКУСТИЧЕСКИХ СИГНАЛОВ УТЕЧКИ |
| description |
An experimental study of the ratio of cumulants of acoustic signals of fluid leakage in a pipeline and interference is carried out. It is shown that the use of bandpass filtering increases the ratio of cumulants by orders of magnitude.
The purpose of the article is to analyze the sensitivity of the cumulant method of detecting fluid leaks in a pipeline based on the statistical processing of the acoustic leakage signal and interference generated by the moving fluid flow. To analyze the possibilities of a cumulant leak detection method, it is necessary to have specific values of cumulants of real leakage signals and interference, which can be obtained as a result of a full-scale experiment.
To generate a leakage signal, an installation is used that allows physical modeling of the leakage of liquid in the pipe in standing water. To simulate a leak in a pipe, a nozzle with copper walls and a through hole with a diameter of 1 mm was used, and a pressure of 6 atmospheres was maintained to produce leakages in the pipe. As a interference, noise generated by a moving fluid flow in the pipeline is used. The interference was recorded on the pipeline of the distribution network at a pressure of 7 atmospheres, the volume flow of the coolant averaged more than 1000 liters per hour, which ensured the flow rate of the fluid at which its motion can be considered turbulent.
The results of experimental studies of acoustic signals of fluid leakage in the pipeline and interference showed that the main interference power is concentrated in the 0...5 kHz band, and the leakage signal is in the band 5...10 kHz. With the use of bandpass filtering, the ratio of the mean square deviation of the leakage signals and interference increased by more than an order of magnitude for the frequency bands 5...10 kHz and 10...15 kHz, as compared with the absence of filtering. In this case, the ratio of the absolute values of the cumulants of the leakage signal and the interference is much greater than the ratio of the variances, and the ratio of cumulants increases substantially with increasing order. This confirms the sensitivity of high-order cumulants to the presence of a leak. |
| publisher |
Institute of Engineering Thermophysics of NAS of Ukraine |
| publishDate |
2018 |
| url |
https://ihe.nas.gov.ua/index.php/journal/article/view/292 |
| work_keys_str_mv |
AT beregunvs analysisoftheinfluenceoffiltrationonthesensitivityofthecumulantmethodofdetectingtheacousticsignalsofleakage AT krasilnikovai analysisoftheinfluenceoffiltrationonthesensitivityofthecumulantmethodofdetectingtheacousticsignalsofleakage AT polobyukta analysisoftheinfluenceoffiltrationonthesensitivityofthecumulantmethodofdetectingtheacousticsignalsofleakage AT beregunvs analizvliâniâfilʹtraciinačuvstvitelʹnostʹkumulântnogometodaobnaruženiâakustičeskihsignalovutečki AT krasilnikovai analizvliâniâfilʹtraciinačuvstvitelʹnostʹkumulântnogometodaobnaruženiâakustičeskihsignalovutečki AT polobyukta analizvliâniâfilʹtraciinačuvstvitelʹnostʹkumulântnogometodaobnaruženiâakustičeskihsignalovutečki |
| first_indexed |
2025-12-17T13:55:12Z |
| last_indexed |
2025-12-17T13:55:12Z |
| _version_ |
1851763943060537344 |