Experimental validation of numerical and fuzzy analysis of a faulty structure

Author

Das, H.C. ; Dash, Amiya Kumar ; Parhi, Dayal R. ; Thatoi, D.N.

Author_Institution

Deptt. of Mech. Engg, I.T.E.R., Bhubaneswar, India

fYear

2010

fDate

22-24 June 2010

Firstpage

1

Lastpage

6

Abstract

In the current analysis numerical and fuzzy methods are adopted for detection of damage in a cracked beam structure containing transverse cracks. Based on the flexibility produced due to the crack a new stiffness matrix is deduced and subsequently that is used to calculate the natural frequencies and mode shapes of the cracked beam using numerical method. The fuzzy inference system is designed by setting up various fuzzy rules with the modal parameters as input data obtained from theoretical analysis. The output from the fuzzy system is relative crack depth and relative crack location. The results of the numerical and fuzzy analysis are being validated with the result from experimental analysis. The results are found to be in good agreement.

Keywords

beams (structures); cracks; fuzzy systems; inference mechanisms; matrix algebra; cracked beam structure; current analysis numerical; faulty structure; fuzzy analysis; fuzzy inference system; fuzzy method; fuzzy rules; modal parameter; numerical method; relative crack depth; relative crack location; stiffness matrix; transverse crack; Advertising; Conferences; IEEE catalog; Permission; crack; fault; fuzzy; natural frequencies;

fLanguage

English

Publisher

ieee

Conference_Titel

System of Systems Engineering (SoSE), 2010 5th International Conference on

Conference_Location

Loughborough

Print_ISBN

978-1-4244-8197-2

Type

conf

DOI

10.1109/SYSOSE.2010.5543955

Filename

5543955