NDLI: Fault Diagnosis of Cantilever Beam Using Finite Element Analysis: A Case Study

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Fault Diagnosis of Cantilever Beam Using Finite Element Analysis: A Case Study

Journal of The Institution of Engineers (India): Series C : Volume 94, Issue 3, July 2013

Journal of The Institution of Engineers (India): Series C : Volume 94, Issue 2, April 2013

Journal of The Institution of Engineers (India): Series C : Volume 94, Issue 1, January 2013

Journal of The Institution of Engineers (India): Series C : Volume 93

Fault Diagnosis of Cantilever Beam Using Finite Element Analysis: A Case Study

Content Provider	Springer Nature Link
Author	Ratnam, C. Murthy, B. S. N. Kumar, K. A.
Copyright Year	2013
Abstract	Damage prediction in mechanical and structural systems is establishing a prominent role in modern engineering. Vibration based damage methods give ample flexibility to understand the extent of expected damages in the system. Measurement of vibration characteristics like natural frequencies and mode shapes, Fourier responses and transient responses can help in comprehending the present status of a system either by comparing with their baseline equivalents or by formulating residual functions and minimizing them. The minimization of residues is carried out using non-conventional optimization techniques like genetic algorithms. Genetic algorithms being a meta-heuristic method obtain global minimum values with implicitly defined constraints and objective. In all the residual functions considered in this paper, it is assumed that only the stiffness parameters are reduced individually in each element due to the damage. The amount of reduction in each element is an unknown parameter. The approach is attempted with a structural member like beam. Experimental analysis is carried out to test the natural frequencies and mode shapes of the damaged beams from finite element model considered. A cantilever beam with central slot of desired depth is selected and impact hammer analysis is performed to know the variation in modes when compared to undamaged counter part. Results are presented in the form of table and graphs.
Starting Page	385
Ending Page	391
Page Count	7
File Format	PDF
ISSN	22500545
Journal	Journal of The Institution of Engineers (India): Series C
Volume Number	94
Issue Number	4
e-ISSN	22500553
Language	English
Publisher	Springer India
Publisher Date	2013-11-20
Publisher Place	India
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fault diagnosis Damage detection Modal analysis Industrial and Production Engineering Finite element analysis Mechanical Engineering Mechanical vibrations Aerospace Technology and Astronautics
Content Type	Text
Resource Type	Article
Subject	Ocean Engineering Industrial and Manufacturing Engineering Mechanical Engineering Aerospace Engineering

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