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Application of Lamb waves using piezoelectric technique for structure health monitoring
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Biomedical Engineering and Health Systems, Health Informatics and Logistics.
2023 (English)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Tillämpning av Lambvågor med hjälp av piezoelektrisk teknik för strukturhälsoövervakning (Swedish)
Abstract [en]

Structural health monitoring (SHM) is damage detection strategy for aerospace, civil and mechanical infrastructure. This project tries to show that Lamb waves, that are being generated and sensed with piezoelectric transducers, can be used for damage detection in a SHM system. For these piezoelectric transducers to work, filtering and amplification circuits needs to be connected to them. This report include the design, simulation, assembly and testing of these circuits. Due to lack of time, it was not possible to generate and sense actual Lamb waves. The result of the thesis is that simulations and tests show that it is possible to generate and sense Lamb waves for damage detection in a SHM system.

Abstract [sv]

Structural health monitoring (SHM) är en skadedetekteringsstrategi för flyg-,civil- och mekanisk infrastruktur. Detta projekt försöker visa att Lambvågor, som genereras och avkänns med piezoelektriska givare, kan användas för skadedetektering i ett SHM-system. För att dessa piezoelektriska givare ska fungera krävs att filtrerings- och förstärkningskretsar är anslutna till dem. Denna rapport inkluderar design, simulering, montering och testning av dessa kretsar. På grund av tidsbrist var det inte möjligt att generera eller avkänna Lambvågor. Resultatet av examensarbetet är att simuleringar och tester visar att det är möjligt att generera och avkänna Lambvågor för skadedetektering i ett SHM-system.

Place, publisher, year, edition, pages
2023. , p. 45
Series
TRITA-CBH-GRU ; 2023:082
Keywords [en]
Structural health monitoring (SHM), damage detection, Lamb waves, piezoelectric (PZT), printed circuit board (PCB), circuit simulation
Keywords [sv]
Strukturell hälsoövervakning (SHM), skadedetektering, Lambvågor, piezoelektrisk (PZT), printed circuit board (PCB), kretssimulering
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-328253OAI: oai:DiVA.org:kth-328253DiVA, id: diva2:1763151
Subject / course
Electrical Engineering
Educational program
Bachelor of Science in Engineering - Electrical Engineering
Supervisors
Examiners
Available from: 2023-06-06 Created: 2023-06-06 Last updated: 2024-10-08Bibliographically approved

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Examensrapport(7864 kB)377 downloads
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Type fulltextMimetype application/pdf

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CiteExportLink to record
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Citation style
  • apa
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Output format
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