Autor: Zghal, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Setting an Upper-Wavelength Limit to the Supercontinuum Generated in a Photonic Crystal Fibre
Autorzy:: Tartara, L.
Degiorgio, V.
Cherif, R.
Zghal, M.
Powiązania:: https://bibliotekanauki.pl/articles/308817.pdf
Data publikacji:: 2009
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: nonlinear optics
photonic crystal fibres
supercontinuum generation
Opis:: We report about a novel kind of supercontinuum generation in a photonic crystal fibre in which the spectral broadening occurs only on the blue side of the pump wavelength. As a consequence a limit to the extent of the supercontinuum is set and thus a way for tailoring the broadened spectrum according to a peculiar application is provided. We present a theoretical explanation along with experimental data which are supported by the results of a set of numerical simulations.
Źródło:: Journal of Telecommunications and Information Technology; 2009, 1; 34-37
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Effect of the gear local damage and profile error of the gear on the drivetrain dynamic response
Autorzy:: Ghorbel, A.
Zghal, B.
Abdennadher, M.
Walha, L.
Haddar, M.
Powiązania:: https://bibliotekanauki.pl/articles/280233.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: dynamic behaviour
clutch
gear
brake disc
gear local damage
gear proﬁle error
Opis:: The dynamic modeling of vibration of a drivetrain is used for increasing our information about vibration generating mechanisms, especially in the presence of some kind of gear faults. This paper describes a research work on the automotive driveline modeling, vibration analysis, and the effect of gear defects on the dynamic behavior of the system. Firstly, main drivetrain components including the engine, clutch, single stage spur gearbox and disc brake are modeled, respectively. The nonlinear dynamic model is simulated by a thirteen degrees of freedom (DOF) system and the nonlinear function is due to the dry friction path. Secondly, two types of defects are modeled and introduced into the spur gear system; local damage and profile error. Then, the nonlinear equations of motion are solved by the numerical Runge Kutta method and a comparative study of the dynamic behavior of the system in healthy and defected cases is discussed for each fault type. The influence of the defects on the vibration response is presented in the time and frequency domain. Finally, analysis of the two defects together is presented.
Źródło:: Journal of Theoretical and Applied Mechanics; 2018, 56, 3; 765-779
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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