10.14489/td.2026.01.pp.004-015

2026, 01 January

DOI: 10.14489/td.2026.01.pp.004-015

Barsuk V. E., Seryeznov A. N., Stepanova L. N., Kabanov S. I., Ramazanov I. S., Chernova V. V.
LOCATION OF ACOUSTIC EMISSION SIGNALS ON BOARD AIRCRAFT ON THE GROUND AND IN FLIGHT
(pp. 4-15)

Abstract. The results of acoustic emission (AE) signal location using piezo antennas installed aboard one ground-based aircraft and another aircraft conducting flight tests are presented. The AE signal location technique was tested in the first aircraft. Two piezo antennas, each consisting of four piezoelectric acoustic emission (AE) transducers, were positioned in a composite area. The structure in the area of each piezo antenna sensor was struck five times with a twisted wire. The piezo antenna sensors were sequentially switched to emission mode, and the signal transit time and average speed of sound propagating between them were determined. The AE signals were then located. The experimental location results were compared with the actual coordinates of the sensors operating in emission mode. Location errors were calculated by enumerating the values of the sound speeds Cx and Cy. Once the minimum error was achieved, the calculated acoustic signal propagation velocities Cx and Cy were used for practical tests to identify defects within zones bounded by piezo antennas on the first aircraft. The second aircraft was equipped with a single piezo antenna consisting of four acoustic antennas and a four-channel AE system unit. AE signals from the engines were recorded during flight, taxiing to the runway, takeoff, flight, descent, landing, and taxiing to the parking area. Maximum AE signal activity was recorded during takeoff and landing. During the flight from the control zone, 46 AE signals were recorded, of which the amplitudes of six signals exceeded the selection threshold.

Keywords: acoustic emission, signal, calibration, composite, error, aircraft, flight.

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V. E. Barsuk (FAI “Siberian Aeronautical Research Institute named after S. A. Chaplygin”, Novosibirsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
A. N. Seryeznov (FAI “Central Aerohydrodynamic Institute named after N. E. Zhukovsky” (FAI TsAGI), Moscow region, Zhukovsky, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
L. N. Stepanova, S. I. Kabanov, I. S. Ramazanov (FAI “Siberian Aeronautical Research Institute named after S. A. Chaplygin”, Novosibirsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
V. V. Chernova (The Siberian Transport University, Novosibirsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

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