Recueil de mécanique


The ''Recueil de mécanique'' is an international, peer-reviewed journal. It is edited by El-Wancharissi university mechanical engineering research team and other national and international academic institutions. It is dedicated to high quality research works of experienced and confirmed researchers. The publication committee of the journal, which is also the initiator of the project, aspires to see it becoming in a short time a source of reference information for researchers in mechanical engineering. Furthermore, the periodic covers a significant number of thematic. For illustration and not limited to the following topics are treated: -power plants (conventional and hybrid, stationary and on board); -thermal science; -thermodynamics; -fluid mechanics; -mathematical modeling of systems and processes; -renewable energy (solar, wind, geothermal, tidal powered, etc ...) processes and technologies; -mechanical contacts and tribology; -machines dynamics, vibration, acoustic and maintenance; -automotive engineering; -computational mechanics; -industrial and manufacturing engineering; -mechanical engineering; -...etc. In addition to original articles, the journal is also dedicating special issues to seminars and colloquium works. RDM is an open access journal which means that all content is freely available without charge. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. RDM is indexed in DOAJ and Copernicus databases. Éditorial Le ''Recueil de mécanique'' est une revue internationale à comité de lecture. Elle est éditée par les équipes de recherche en génie mécanique du Centre Universitaire de Tissemsilt et d'autres établissements universitaires nationaux et internationaux. La revue est consacrée aux travaux de chercheurs confirmés et aguerris. Le comité de publication du ''Recueil de mécanique'', d'ailleurs l'initiateur du projet, aspire le voir devenir dans peu de temps une source d'information de référence pour les chercheurs en génie mécanique. Par ailleurs, le périodique couvre un nombre important d'axes. À titre indicatif et non exhaustif les thèmes suivants y sont traités: - les installations énergétiques (conventionnelles et hybrides, stationnaires et embarquées); - la thermique; - la thermodynamique; - la mécanique des fluides; - la modélisation mathématique des systèmes et procédés; - les énergies renouvelables (solaire, éolienne, géothermie, marémotrice,...etc) procédés et technologies ; - la mécanique des contacts et la tribologie; - la dynamique des machines, les vibrations, l’acoustique et la maintenance; -ingénierie automobile; -ingénierie industrielle et manufacturière; -ingénierie mécanique; -...etc. En plus des articles originaux, la revue consacrera également des numéros spéciaux aux travaux de séminaires, colloques et journées d’étude. RDM est un journal en libre accès, ce qui signifie que tout le contenu est disponible gratuitement et sans frais. Les utilisateurs sont autorisés à lire, télécharger, copier, distribuer, imprimer, rechercher, ou faire des renvois vers le texte intégral des articles du journal sans demander la permission préalable de l'éditeur ou de l'auteur. RDM est indexé dans les bases de données DOAJ et Copernicus.







Predictive diagnosis of unbalance and misalignment defects Based on the FFT and DWT of the stator current of an induction motor: Experimental approaches

شمس الدين روابحية,  سليمان بوراس,  عبد الكريم بوراس, 

Résumé: Because of the complexity of their modelling, mass imbalance and engine misalignment have not received much attention from researchers. Early, correct and reliable detection of these defects helps to stop the propagation of the failure or limits its evolution to severe degrees. Thus, the purpose of this paper is to extract the frequency signatures of the unbalance and misalignment in the stator current signal from the start of the induction motor using the Fast Fourier Transform (FFT) of the Park current vector supplemented by the Discrete Wavelet Transform (DWT). The experimental validation carried out on a 2.6 Kw "Leroy Somer" induction motor gave satisfactory results that can be operated by trained maintenance personnel who are not necessarily highly qualified in the field.

Mots clés: Asynchrnous motor ; Mechanical faults ; Wavelet transform ; FFT of Park vector

Thermodynamic study and analysis of thermohydraulic cycle for power generation

Zebbar Djallel,  Guelib Asmaâ,  Kherris Sahraoui,  Halilou Ahlem Nessrine,  Zebbar Souhila,  Mostefa Kouider,  Kaddouri Nadia, 

Résumé: This paper is devoted to the study and analysis of the thermohydraulic process used for power generation from low potential heat sinks as thermal-solar and geothermal resources. The machine studied operates according to the thermohydraulic process "CAPILI" in engine operation mode with mechanical work generation. Moreover, the thermodynamic analysis of the different working fluids has revealed that n-butane R600 is most suitable for the cycle. The study also shows that thermal, Carnot and second law efficiencies have maximum values equal to 20.3%, 23% and 88% respectively for condenser and evaporator temperatures equal to 30 ° C and 120 °C respectively.

Mots clés: ; Thermohydraulic ; Heat transformer ; Thermohydraulic ; Working fluid ; Condenser ; Evaporator ; Carnot cycle