Yapıların Zaman-Frekans Ortamında Dalgacık Dönüşümü Metoduyla Hasar Analizleri

Year 2019, Volume: 30 Issue: 1, 8835 - 8860, 01.01.2019

Ömer Sak , Kemal Beyen

https://doi.org/10.18400/tekderg.300366

Cited By: 1

Abstract

Bu çalışmada
zaman-frekans ortamında uygulanan hasar tanılama tekniklerinde gözlenen son
araştırmalara bakılarak yeni hasar tanılama algoritmaları incelenmiştir.
Özellikle yapı sağlığı çalışmalarında ivme, hız ve deplasman gibi kinematik parametreleri
ve bunların türevleri üzerinden örneğin hız bilgisinin enerji tabanlı kinetik
bir parametre ile ifade edilerek etkin hasar tespitleri yapılabildiği bilinmektedir.
Analitik modellerden elde edilen sitasyoner ve ergodic yapıda olmayan kinematik
ölçümlere dalgacık dönüşümleri uygulanarak hasar alan ve doğrusal olmayan
özellik gösteren yapısal elemanlar tespit edilmiştir. Sürekli dalgacık dönüşümü
ve dalgacık paket dönüşümü uygulanan örneklerde bu metotların hasar tespitinde
etkili bir yöntem olarak kullanılabileceği sonucuna ulaşılmıştır.

Keywords

Yapı Sağlığı, Dalgacık Dönüşümleri, Hasar Tanılama

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