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Article

Validation of Results Obtained from Different Types of Fuzzy Controllers for Diagnosis of Inclined Edge Crack in Cantilever Beam by Vibration Parameters

1Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha, India


Journal of Mechanical Design and Vibration. 2014, Vol. 2 No. 3, 63-68
DOI: 10.12691/jmdv-2-3-2
Copyright © 2014 Science and Education Publishing

Cite this paper:
Ranjan K. Behera, Dayal R. Parhi. Validation of Results Obtained from Different Types of Fuzzy Controllers for Diagnosis of Inclined Edge Crack in Cantilever Beam by Vibration Parameters. Journal of Mechanical Design and Vibration. 2014; 2(3):63-68. doi: 10.12691/jmdv-2-3-2.

Correspondence to: Ranjan  K. Behera, Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha, India. Email: ranjancet@gmail.com

Abstract

In this paper, the crack diagnosis using intelligent techniques (using membership functions in different fuzzy controllers) have been developed for inverse investigation of the vibration parameters (like modal frequencies and mode shapes) and crack parameters (like crack location, crack depth and crack inclination) of an inclined edge crack cantilever beam. The vibration parameters are calculated from finite element (using ANSYS) and experimental analysis which are used as inputs to the different fuzzy controllers. The different fuzzy controllers are designed by taking several types of membership functions to calculate the crack parameters. The calculated first three modal frequencies and mode shapes are used to generate the number of fuzzy rules with three output crack parameters. Finally, the proposed intelligent techniques are validated by comparing the results obtained from both FEA and experimental analysis. All the results are obtained from fuzzy controllers are in good agreement with experimental results.

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