An Ultrasonic-Based Detection of Air-Leakage for the Unclosed Components of Aircraft
Air-leakage detection is among the most important processes at the assembly stage of unclosed components, especially for large aircraft. A series of air-leakage detecting methods are generally applied during the final assembly, nevertheless, many of them are less effective to detect the leakage at t...
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doaj-e11b3d37a198484dbe48d475c9b593402021-02-21T00:01:18ZengMDPI AGAerospace2226-43102021-02-018555510.3390/aerospace8020055An Ultrasonic-Based Detection of Air-Leakage for the Unclosed Components of AircraftYanlin Lyu0Muhammad Jamil1Pengfei Ma2Ning He3Munish Kumar Gupta4Aqib Mashood Khan5Danil Yurievich Pimenov6School of Software Engineering, Jinling Institute of Technology, Nanjing 211169, ChinaCollege of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaCollege of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaCollege of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaKey Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 210016, ChinaCollege of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaDepartment of Automated Mechanical Engineering, South Ural State University Lenin Prosp, 76, 454080 Chelyabinsk, RussiaAir-leakage detection is among the most important processes at the assembly stage of unclosed components, especially for large aircraft. A series of air-leakage detecting methods are generally applied during the final assembly, nevertheless, many of them are less effective to detect the leakage at the assembly stage. The present study aims to discuss the principles of ultrasonic generation in negative pressure conditions to detect the air-leakage. An ultrasonic-based detection method is proposed and designed to detect the air-leakage of unclosed components for aircraft. A relationship between the acoustic power, sound pressure, and the leak aperture detection distance was identified and discussed. A leakage rate model related to leakage rate, leak aperture, and system pressure was implemented and confirmed through experiments. Findings have indicated that the air-leakage can be detected effectively within a detection distance of 0.8 m and a leak aperture greater or equal to 0.4 mm with this method. Besides, the leak location, leak aperture, and leakage rate was acquired in an accurate and fast way. It is an effective method of detecting the air-leakage of unclosed components at the aircraft assembly stage reducing the testing time, energy consumption, and cost for the air-leakage detection in the final assembly stage of large aircraft.https://www.mdpi.com/2226-4310/8/2/55aircraftunclosed componentsultrasonic detectionair-leakageair-tightness |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yanlin Lyu Muhammad Jamil Pengfei Ma Ning He Munish Kumar Gupta Aqib Mashood Khan Danil Yurievich Pimenov |
spellingShingle |
Yanlin Lyu Muhammad Jamil Pengfei Ma Ning He Munish Kumar Gupta Aqib Mashood Khan Danil Yurievich Pimenov An Ultrasonic-Based Detection of Air-Leakage for the Unclosed Components of Aircraft Aerospace aircraft unclosed components ultrasonic detection air-leakage air-tightness |
author_facet |
Yanlin Lyu Muhammad Jamil Pengfei Ma Ning He Munish Kumar Gupta Aqib Mashood Khan Danil Yurievich Pimenov |
author_sort |
Yanlin Lyu |
title |
An Ultrasonic-Based Detection of Air-Leakage for the Unclosed Components of Aircraft |
title_short |
An Ultrasonic-Based Detection of Air-Leakage for the Unclosed Components of Aircraft |
title_full |
An Ultrasonic-Based Detection of Air-Leakage for the Unclosed Components of Aircraft |
title_fullStr |
An Ultrasonic-Based Detection of Air-Leakage for the Unclosed Components of Aircraft |
title_full_unstemmed |
An Ultrasonic-Based Detection of Air-Leakage for the Unclosed Components of Aircraft |
title_sort |
ultrasonic-based detection of air-leakage for the unclosed components of aircraft |
publisher |
MDPI AG |
series |
Aerospace |
issn |
2226-4310 |
publishDate |
2021-02-01 |
description |
Air-leakage detection is among the most important processes at the assembly stage of unclosed components, especially for large aircraft. A series of air-leakage detecting methods are generally applied during the final assembly, nevertheless, many of them are less effective to detect the leakage at the assembly stage. The present study aims to discuss the principles of ultrasonic generation in negative pressure conditions to detect the air-leakage. An ultrasonic-based detection method is proposed and designed to detect the air-leakage of unclosed components for aircraft. A relationship between the acoustic power, sound pressure, and the leak aperture detection distance was identified and discussed. A leakage rate model related to leakage rate, leak aperture, and system pressure was implemented and confirmed through experiments. Findings have indicated that the air-leakage can be detected effectively within a detection distance of 0.8 m and a leak aperture greater or equal to 0.4 mm with this method. Besides, the leak location, leak aperture, and leakage rate was acquired in an accurate and fast way. It is an effective method of detecting the air-leakage of unclosed components at the aircraft assembly stage reducing the testing time, energy consumption, and cost for the air-leakage detection in the final assembly stage of large aircraft. |
topic |
aircraft unclosed components ultrasonic detection air-leakage air-tightness |
url |
https://www.mdpi.com/2226-4310/8/2/55 |
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