Single-sensor approach for impact localization and force reconstruction by using discriminating vibration modes

Autor: Didier Gendre, Roger Ohayon, Dimitri Goutaudier, Véronique Kehr-Candille
Přispěvatelé: DMAS, ONERA, Université Paris Saclay (COmUE) [Châtillon], ONERA-Université Paris Saclay (COmUE), AIRBUS Operations Ltd., Laboratoire de Mécanique des Structures et des Systèmes Couplés (LMSSC), Conservatoire National des Arts et Métiers [CNAM] (CNAM), Airbus Operation S.A.S., Airbus [France]
Jazyk: angličtina
Rok vydání: 2020
Předmět:
0209 industrial biotechnology
Computer science
Acoustics
PROBLEME INVERSE
Aerospace Engineering
02 engineering and technology
Accelerometer
01 natural sciences
VIBRATION ANALYSIS
020901 industrial engineering & automation
IDENTIFICATION D'IMPACT
ANALYSE VIBRATOIRE
0103 physical sciences
Point (geometry)
010301 acoustics
Civil and Structural Engineering
Parametric statistics
IMPACT IDENTIFICATION
Mechanical Engineering
Work (physics)
Triangulation (social science)
[SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph]
Signature (logic)
Computer Science Applications
[SPI.MECA.GEME]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph]
Vibration
RÉSEAU DE CAPTEURS
Modal
Control and Systems Engineering
[SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph]
Signal Processing
INVERSE PROBLEM
STRUCTURAL HEALTH MONITORING
Zdroj: Mechanical Systems and Signal Processing
Mechanical Systems and Signal Processing, Elsevier, 2020, 138, pp.106534. ⟨10.1016/j.ymssp.2019.106534⟩
ISSN: 0888-3270
1096-1216
DOI: 10.1016/j.ymssp.2019.106534⟩
Popis: International audience; This study presents a novel strategy for identifying an impact event on a structure from vibration measurements. Compared to triangulation techniques that require at least three sensors on a plate-like structure, only one sensor is used in this work for localizing the impact point. The proposed approach consists in extracting specific modal ponderations as a signature of impact location. The force reconstruction problem is simultaneously addressed by fitting a parametric law. The proposed procedure captures the main load history parameters such as the impact time, its duration and its intensity. An impact test campaign is performed on a metallic plate, equipped with one accelerometer only, to confirm the validity of the proposed single-sensor approach. The methodology is efficient for accurately localizing impacts that are applied anywhere on the plate and for quickly estimating the main load history parameters.
Databáze: OpenAIRE
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