A Correlation Improvement Technique for Model Updating of Structures

Author:

Altunel Fatih1,Çelik Mehmet2,Çalişkan Mehmet3

Affiliation:

1. Proino Inc., Bilkent Cyberpark, 06800, Ankara, Turkey

2. Faculty of Engineering, KTO Karatay University, Konya, Turkey

3. Department of Mechanical Engineering, Middle East Technical University, Ankara, Turkey

Abstract

This study proposes a new correlation improvement technique for the optimum node removal location to get improved modal assurance criterion (MAC) matrix. The technique is applied to updating of the finite element model (FEM) of a structure. The developed routine is tried on a utility helicopter. It is proven that it is capable of showing better performance than the coordinate MAC (coMAC), commonly used in such analyses. Commercial software is utilized for the finite element analysis of the helicopter fuselage and tail. Experimental modal analyses are also performed for updating the model for tail of the helicopter to demonstrate the effectiveness of the new technique.

Publisher

World Scientific Pub Co Pte Lt

Subject

Applied Mathematics,Mechanical Engineering,Ocean Engineering,Aerospace Engineering,Building and Construction,Civil and Structural Engineering

Cited by 5 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Mass and Stiffness Correlation Using a Transformation Matrix;Infrastructures;2024-06-13

2. Frequency-Based Adaptive PPF Controller for Vibration Reduction of a Helicopter Shell Body;Journal of Aerospace Engineering;2023-05

3. Structural model updating study in consideration of complex pre-stress distribution;Journal of Low Frequency Noise, Vibration and Active Control;2020-10-12

4. Structural dynamic model updating based on multi-level weight coefficients;Applied Mathematical Modelling;2019-07

5. Enhanced Sensitivity for Structural Damage Detection Using Incomplete Modal Data;International Journal of Structural Stability and Dynamics;2018-03-28

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