Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8130107 | Ultrasonics | 2018 | 25 Pages |
Abstract
The acoustic scattering of a plane wave by an elastic cylindrical shell is studied. A new approach is developed to predict the form function of an immersed cylindrical shell of the radius ratio b/a ('b' is the inner radius and 'a' is the outer radius). The prediction of the backscattered form function is investigated by a combined approach between fuzzy clustering algorithms and bio-inspired algorithms. Four famous fuzzy clustering algorithms: the fuzzy c-means (FCM), the Gustafson-Kessel algorithm (GK), the fuzzy c-regression model (FCRM) and the Gath-Geva algorithm (GG) are combined with particle swarm optimization and genetic algorithm. The symmetric and antisymmetric circumferential waves A, S0, A1, S1 and S2 are investigated in a reduced frequency (k1a) range extends over 0.1
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Acoustics and Ultrasonics
Authors
Said Agounad, El Houcein Aassif, Younes Khandouch, Gérard Maze, Dominique Décultot,