Experimental Verification of Dynamic Properties of a Hollow Aluminum Beam

Year 2023, , 149 - 162, 27.12.2023

Mert Bilir Muhsin Karakaş Akın Oktav , Emre Özdemir , Ahmet Selim Savi Fatih Sevinç , Hasan Ali Türkan

https://doi.org/10.46740/alku.1324880

Abstract

In this study, analytical and computational analyses are performed to determine the dynamic properties of an aluminum hollow beam and an experimental analysis is also performed. The experimental model is taken as a reference model and the computational model is updated accordingly using model updating tools. The damping behavior inherent in all physical structures is measured experimentally. According to the results of the cross-correlation modal assurance criterion, the experimental and computational results match well. The average error between the computational and experimental results for the first five damped natural frequency values is 1.5%.

Keywords

Hollow beam, Damping, Model update, Frequency response function

Supporting Institution

TÜBİTAK

Project Number

1919B012220892

Thanks

This research was supported by The Scientific and Technological Research Council of Turkey (TUBITAK), 2209A Program, Project number: 1919B012220892

Alüminyum Kutu Kesitli Kirişin Dinamik Özelliklerinin Deneysel Olarak Doğrulanması

Abstract

Bu çalışmada, alüminyum boşluklu kirişin dinamik özelliklerini belirlemek için analitik ve hesaplamalı analizler gerçekleştirilmiş ve ayrıca deneysel bir analiz yapılmıştır. Deneysel model referans model olarak alınmış ve model güncelleme araçları kullanılarak hesaplamalı model buna göre güncellenmiştir. Tüm fiziksel yapılarda doğal olarak mevcut olan sönümleme davranışı deneysel olarak ölçülmüştür. Çapraz korelasyon modal güvence kriteri sonuçlarına göre, deneysel ve hesaplamalı sonuçlar iyi bir şekilde eşleşmektedir. İlk beş sönümlü doğal frekans değeri için hesaplamalı ve deneysel sonuçlar arasındaki ortalama hata 1,5% olarak hesaplanmıştır.

Keywords

Kutu kesitli kiriş, Sönümleme, Model güncelleme, Frekans cevap fonksiyonu.

Project Number

1919B012220892

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