Email this article ACOUSTIC EMISSION AND STRAIN GAUGE CONTROL OF DEFECTS DURING STATIC TESTS OF COMPOSITE SPRING OF AIRCRAFT CHASSIS
- Authors: Stepanova L.N.1, Laznenko A.S.2, Petrova E.S.2, Kazakova A.V.2, Ramazanov I.S.3, Chernova V.V.4
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Affiliations:
- FAI “Siberian Aeronautical Research Institute named after S. A. Chaplygin”,
- FAI “Siberian Aeronautical Research Institute named after S. A. Chaplygin”
- FAI «Siberian Aeronautical Research Institute named after S. A. Chaplygin»
- The Siberian Transport University
- Issue: No 7 (2025)
- Pages: 3-16
- Section: Acoustic methods
- URL: https://journals.rcsi.science/0130-3082/article/view/294887
- DOI: https://doi.org/10.31857/S0130308225070017
- ID: 294887
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Abstract
The article presents the results of tests of the aircraft landing gear support spring made of Toray T800 prepreg and 30 KhGSA steel. The cases of its testing by acoustic emission, ultrasonic methods and strain gauge during the simulation of horizontal aircraft landing and during the simulation of landing with a side impact are considered. During the spring tests, strain gauge was used, tensile, compressive and torsional deformations were studied. The changes in the main informative parameters of acoustic emission signals (MARSE energy parameter, median frequency, structural and two-interval coefficients) were analyzed. The defect type was determined using a modified structural coefficient. This made it possible to increase the speed of information processing, since its decrease corresponded to the matrix destruction, and its increase corresponded to the fiber destruction. The location of acoustic emission signal sources corresponding to the structure area with the greatest relative deformations was obtained. It was noted that when simulating a horizontal landing of an aircraft, after removing the load, residual deformations were observed in the spring material
About the authors
Ludmila Nicolaevna Stepanova
FAI “Siberian Aeronautical Research Institute named after S. A. Chaplygin”,
Email: stepanova@stu.ru
ORCID iD: 0000-0003-1073-8394
Doctor of Technical Sciences, Professor, Chief Researcher of the Research Laboratory; Head of the Sector
Russian Federation, 630051 Novosibirsk, Polzunova st., 21Alexander Sergeevich Laznenko
FAI “Siberian Aeronautical Research Institute named after S. A. Chaplygin”
Email: akustika2063@yandex.ru
Head of the Department of Fatigue and Static Strength of Aircraft Structures
Russian Federation, 630051 Novosibirsk, Polzunova st., 21Elena Sergeevna Petrova
FAI “Siberian Aeronautical Research Institute named after S. A. Chaplygin”
Email: akustika2063@yandex.ru
Leading Engineer of the Department of Fatigue and Static Strength of Aircraft Structures
Russian Federation, 630051 Novosibirsk, Polzunova st., 21Anna Vladimirovna Kazakova
FAI “Siberian Aeronautical Research Institute named after S. A. Chaplygin”
Email: akustika2063@yandex.ru
Leading Engineer of the Department of Fatigue and Static Strength of Aircraft Structures
Russian Federation, 630051 Novosibirsk, Polzunova st., 21Ilya S. Ramazanov
FAI «Siberian Aeronautical Research Institute named after S. A. Chaplygin»
Email: akustika2063@yandex.ru
Scopus Author ID: 143416
andidate of engineering, senior researcher of the sector of development of acoustic-emission and strain gauge systems
Russian Federation, 630051 Novosibirsk, Polzunova str., 21Valentina V. Chernova
The Siberian Transport University
Author for correspondence.
Email: akustika2063@yandex.ru
ORCID iD: 0000-0002-2701-1522
SPIN-code: 6035-3730
Scopus Author ID: 753280
candidate of engineering, lecturer of department
Russian Federation, 630049 Novosibirsk, D. Kovalchuk st., 191References
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