10.14489/td.2021.02.pp.018-029

2021, 02 February

DOI: 10.14489/td.2021.02.pp.018-029

Seryeznov А. N., Stepanova L. N., Kabanov S. I., Ramazanov I. S., Chernova V. V., Kuznetsov A. B.
ACOUSTIC EMISSION SIGNALS LOCATION IN DURALUMIN AND CARBON FIBER SAMPLES BY OPTICAL FIBER AND PIEZOELECTRIC TRANSDUCER SENSORS ANTENNA
(pp. 18-29)

Abstract. The issues are considered of acoustic emission (AE) signals location generated by various simulators (Su–Nielsen, electronic simulator, metal balls of various diameter from 0.5 to 1.5 mm, dropped from different heights). Signals generated by built-in electronic simulator with a frequency of 1 Hz location is analyzed performed by an antenna consisting of two Fabry–Perot fiber-optic sensors (FOS) and two piezoelectric transducers, mounted on samples made of duralumin and T800 carbon fiber. A carbon fiber reinforced plastic sample with the defined above antenna mounted was tested with a VEDS-10 vibration stand. AE signals were registered under the vibration frequency of 20…50 Hz in the acceleration range of 0.3…0.8g. The influence of the time drift recorded by the piezoelectric transducers on the measurement results is determined. It was found that the time drift was not recorded by fiber-optic FOS sensors, but their sensitivity is more than 14 times less than that of piezoelectric transducers.

Keywords: antenna, location, fiber-optic sensor, piezoelectric transducer, acoustic emission, carbon fiber reinforced plastic, duralumin.

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А. N. Seryeznov, L. N. Stepanova, S. I. Kabanov, I. S. Ramazanov (Chaplygin Siberian Research Institute of Aviation, Novosibirsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
V. V. Chernova (Siberian State University of Railway Transport, Novosibirsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
A. B. Kuznetsov (Chaplygin Siberian Research Institute of Aviation, Novosibirsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

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