By Tahar Fakhfakh, Fakher Chaari, Lasaad Walha, Moez Abdennadher, Mohamed Slim Abbes, Mohamed Haddar
The publication presents readers with a photograph of contemporary study and commercial developments in box of business acoustics and vibration. every one bankruptcy, accredited after a rigorous peer-review strategy, studies on a particular, unique piece of labor awarded and mentioned at foreign convention on Acoustics and Vibration (ICAV2016), which was once equipped by way of the Tunisian organization of commercial Acoustics and Vibration (ATAVI) and held March 21-23, in Hammamet, Tunisia. The contributions, regularly written by means of north African authors, covers advances in either thought and perform in various subfields, similar to: clever fabrics and constructions; fluid-structure interplay; structural acoustics in addition to computational vibro-acoustics and numerical tools. additional issues contain: engines keep an eye on, noise identity, powerful layout, flow-induced vibration and lots of others.This ebook presents a helpful source for either lecturers and execs facing different matters in utilized mechanics. through combining complex theories with commercial matters, it really is anticipated to facilitate communique and collaboration among diversified teams of researchers and expertise users.
Read or Download Advances in Acoustics and Vibration: Proceedings of the International Conference on Acoustics and Vibration (ICAV2016), March 21-23, Hammamet, Tunisia PDF
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Additional info for Advances in Acoustics and Vibration: Proceedings of the International Conference on Acoustics and Vibration (ICAV2016), March 21-23, Hammamet, Tunisia
22 H. Mahgoun et al. References Bartelmus W, Zimroz R (2009) Vibration condition monitoring of planetary gearbox under varying external load. Mech Syst Signal Process 23(1):246–257 Capdessus C, Sidahmed M (1992) Analyse des vibrations d’un engrenage cepstre, corrélation, spectre, traitement du signal, vol 8, no 5, pp 365–371 Chaari F, Abbes MS, Rueda FV, del Rincon AF, Haddar M (2013) Analysis of planetary gear transmission in non-stationary operations. Front Mech Eng 8(1):88–94 Cohen L (1989) Time–frequency distributions a review.
Once the coefﬁcients are obtained, the series expression can be used to calculate the velocity at other positions on surface of the cylindrical shell structures. Then the sound power radiation of the cylindrical structures can be predicted based on boundary element method. In order to experimentally validate the numerical results, experiments on a double cylindrical shell was conducted in an underwater testing ﬁeld. A similar trend in results of the radiated sound power obtained experimentally direct from the hydrophone data and from the interpolation method was observed.
A sandwich construction has following advantages: High ratio of bending stiffness to weight as compared to monolithic construction; high resistance to mechanical and sonic fatigue; good damping characteristic… During the use of the sandwich material, he can damage in several ways. The principal modes of damage of composites with foam cores are: fracture of skin, indentation, face wrinkling, debonding between skin and core, shear damage of the core. Many damage detection methods have been developed for composite structures, such as acoustic emission (AE) (De Rosa et al.