Crack Identification in Blades
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 6, Issue 11
Abstract
In this paper a method for crack detection in blades is presented. In the suggested method, the process of crack identification is consists of four stages. In first stage, three natural frequencies of a blade for different locations and depths of cracks were calculated using Finite Element Method (FEM). The obtained results were verified with the results of experimental modal analysis. In second stage, two Multi Layer Feed Forward (MLFF) neural networks were created. In third stage, Genetic Algorithm (GA) was used to training the neural network. The inputs of neural networks were the first three natural frequencies and the outputs of first and second neural networks were corresponding locations and depths of cracks, respectively. In forth stage, some of natural frequencies of blade with different crack situations as inputs applied to trained neural networks. Finally obtained results showed that predicted cracks characteristics were in good agreements with actual data.
Authors and Affiliations
Mehdi karimi| Assistant Professor of Mechanical Engineering, Bu-Ali Sina University, Hamedan, Iran, Ali reza amini sardari *| Young Researchers club, Hamedan Branch, Bu-Ali Sina University, Hamedan, Iran, Zeynab amiri| Young Researchers club, Hamedan Branch, Bu-Ali Sina University, Hamedan, Iran, Nima Haghshenas| Young Researchers club, Hamedan Branch, Bu-Ali Sina University, Hamedan, Iran
Keywords
Related Articles
- EP ID EP6313
- DOI -
- Views 323
- Downloads 8
The Effect of Intrinsic Motivation and Sport Commitment on the Performance of Iranian National Water Polo Team
The purpose of the present study was to investigate the effect of intrinsic motivation and sport commitment on the performance of Iranian national water polo team. Statistical populations of this study included the whole...
Heterogeneous slope stability optimization using firefly algorithm, simulate annealing and imperialistic competitive algorithm
Soil slope stability optimization with non-circular slip surface is considered as a complicated problem in geotechnical engineering. Therefore it is necessary to find a robust algorithm which is capable to find the best...
Assessment of Laboratory Courses Using Fuzzy reasoning
A new method is presented for laboratory courses assessment using fuzzy reasoning. Instructors often encounter problems when assessing students in the lab. Instructors know items that impress on the assessment ambiguousl...
The Study of Prohibition of Discrimination in the Convention of the Elimination of Discrimination against Women in the Context of Azarbayjani Oral Literature
Discrimination can affect all human rights. Ignoring women's rights which are half of the community can lead to important results in forming the other part of the community. It can unbalance and decrease the development...
Impact of Family Comprehensive Plan Education on the Entrepreneurship of Clients under the Support of Imam Khomeini Relief Foundation
Present study was done to investigate Impact of family comprehensive plan education on the entrepreneurship of clients under the support of Imam Khomeini relief foundation. The method for doing this research was descript...