Détail de l'auteur
Auteur Salim Boukebbab |
Documents disponibles écrits par cet auteur (6)
Affiner la recherche Interroger des sources externesContribution a l’amelioration de la qualite des etats de surfaces des protheses orthopediques / Noureddine Azzam
Titre : Contribution a l’amelioration de la qualite des etats de surfaces des protheses orthopediques Type de document : texte imprimé Auteurs : Noureddine Azzam, Auteur ; Salim Boukebbab, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2015 Autre Editeur : Aix Marseille Université Importance : 149 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : Prothèse du genou Surface gauches Algorithme ICP Adaptation de trajectoire Usinage 5-
axes Lissage de trajectoire Knee prosthesis Freeform surfaces ICP algorithm Toolpath adaptation 5 axes machining Toolpath smoothing بدلة الركبة الاشكال المعقدة تكييف مسار الخوارزمي ت .أ .ن تصنيع 5 محاور تمليس مسارIndex. décimale : 620 Génie Mécanique Résumé : Commonly, knee prostheses are composed of two metal parts fixed respectively on femur and tibia, and a third one called intercalary in plastic material. The femoral part is the most complex one to realize due to its complex shape and its material, which is generally difficult to machine. To reduce the volume of bone cut during the operation, the thickness of this part is in constant reduction. This thickness reduction induces a decrease of the safety factor before the prosthesis failure, increasing the importance of the nominal thickness ensuring. During the manufacturing process, of these components distortions appear on roughcast workpiece geometry. The contact between the femoral component and the intercalary is nonconforming; this property allows a geometric variation of the surface finish of
these parts without a reduction of the prostheses function. Thus, prosthesis manufacturers choose to ensure the nominal thickness of the prosthesis by removing a constant thickness on the roughcast workpiece. This operation is generally carried out by an abrasive process realized manually by an operator.
The aim of this thesis work is to contribute to the automation of these operations by providing a method to adapt the machining toolpaths at geometrical variations of the target surface. The aim of this research work is to adapt a machining toolpath computed on a nominal model to remove a constant thickness on a roughcast measured surface. The proposed method starts with an alignment step of the measured surface on the nominal toolpath using an ICP algorithm. Subsequently, the nominal toolpath is deformed to remove the desired thickness of the measured rough surface defined in presented case by a STL model. Naturally, discontinuities of this type of model induce the apparition of pattern for the STL on the adapted toolpath and thus on the machined workpiece.
Subsequently, to limit this problem and to improve the quality of realized surface, it is proposed a toolpath smoothing method. To validate theoretical developments of this work, tests were carried out on a five-axis machine for roughing of femoral components of a unicompartmental knee prosthesis.
Diplôme : Doctorat En ligne : ../theses/gmecanique/AZZ6798.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10035 Contribution a l’amelioration de la qualite des etats de surfaces des protheses orthopediques [texte imprimé] / Noureddine Azzam, Auteur ; Salim Boukebbab, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة : Aix Marseille Université, 2015 . - 149 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : Prothèse du genou Surface gauches Algorithme ICP Adaptation de trajectoire Usinage 5-
axes Lissage de trajectoire Knee prosthesis Freeform surfaces ICP algorithm Toolpath adaptation 5 axes machining Toolpath smoothing بدلة الركبة الاشكال المعقدة تكييف مسار الخوارزمي ت .أ .ن تصنيع 5 محاور تمليس مسارIndex. décimale : 620 Génie Mécanique Résumé : Commonly, knee prostheses are composed of two metal parts fixed respectively on femur and tibia, and a third one called intercalary in plastic material. The femoral part is the most complex one to realize due to its complex shape and its material, which is generally difficult to machine. To reduce the volume of bone cut during the operation, the thickness of this part is in constant reduction. This thickness reduction induces a decrease of the safety factor before the prosthesis failure, increasing the importance of the nominal thickness ensuring. During the manufacturing process, of these components distortions appear on roughcast workpiece geometry. The contact between the femoral component and the intercalary is nonconforming; this property allows a geometric variation of the surface finish of
these parts without a reduction of the prostheses function. Thus, prosthesis manufacturers choose to ensure the nominal thickness of the prosthesis by removing a constant thickness on the roughcast workpiece. This operation is generally carried out by an abrasive process realized manually by an operator.
The aim of this thesis work is to contribute to the automation of these operations by providing a method to adapt the machining toolpaths at geometrical variations of the target surface. The aim of this research work is to adapt a machining toolpath computed on a nominal model to remove a constant thickness on a roughcast measured surface. The proposed method starts with an alignment step of the measured surface on the nominal toolpath using an ICP algorithm. Subsequently, the nominal toolpath is deformed to remove the desired thickness of the measured rough surface defined in presented case by a STL model. Naturally, discontinuities of this type of model induce the apparition of pattern for the STL on the adapted toolpath and thus on the machined workpiece.
Subsequently, to limit this problem and to improve the quality of realized surface, it is proposed a toolpath smoothing method. To validate theoretical developments of this work, tests were carried out on a five-axis machine for roughing of femoral components of a unicompartmental knee prosthesis.
Diplôme : Doctorat En ligne : ../theses/gmecanique/AZZ6798.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10035 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité AZZ/6798 AZZ/6798 Thèse Bibliothèque principale Thèses Disponible
Titre : Contribution à la determination et à l'analyse des sources d'erreures en vue d'une maitrise des procedés de fabrication. Type de document : texte imprimé Auteurs : Hichem Bouchenitfa, Auteur ; Salim Boukebbab, Directeur de thèse Editeur : Constantine : Université Mentouri Constantine Année de publication : 2010 Importance : 106 f. Format : 30 cm. Note générale : 01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD Langues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : Construction mécanique Fluide compressible Tuyère Ecoulement erreurs de fabrication production automatisée compensation des
erreurs prototypage rapide manufacturing errors automated production error compensation rapid prototyping الأخطاء التشغل الآلي تعوض الخطاء التصنع السريع للنماذجIndex. décimale : 620 Génie Mécanique Résumé :
With the opening of markets and the increased of competition the criteria of quality and flexibility have become crucial to the maintaining and expansion of market share, for this reason production automation solution is needed. Automated production has known in recent years a considerable development in all these phases (from design to inspection passing through the manufacturing process) with a greater or lesser degrees but inspection function is still late. In this work we deals with the automation of the inspection function, not only in the phase of errors determining but also the phase of analysis and treatment of errors with compensation because the final goal is not the measure of errors but the correct of defects. At the end we propose an application to the case of rapid prototyping.Note de contenu : Annexes. Diplôme : Doctorat en sciences En ligne : ../theses/gmecanique/BOU5677.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=5371 Contribution à la determination et à l'analyse des sources d'erreures en vue d'une maitrise des procedés de fabrication. [texte imprimé] / Hichem Bouchenitfa, Auteur ; Salim Boukebbab, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2010 . - 106 f. ; 30 cm.
01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : Construction mécanique Fluide compressible Tuyère Ecoulement erreurs de fabrication production automatisée compensation des
erreurs prototypage rapide manufacturing errors automated production error compensation rapid prototyping الأخطاء التشغل الآلي تعوض الخطاء التصنع السريع للنماذجIndex. décimale : 620 Génie Mécanique Résumé :
With the opening of markets and the increased of competition the criteria of quality and flexibility have become crucial to the maintaining and expansion of market share, for this reason production automation solution is needed. Automated production has known in recent years a considerable development in all these phases (from design to inspection passing through the manufacturing process) with a greater or lesser degrees but inspection function is still late. In this work we deals with the automation of the inspection function, not only in the phase of errors determining but also the phase of analysis and treatment of errors with compensation because the final goal is not the measure of errors but the correct of defects. At the end we propose an application to the case of rapid prototyping.Note de contenu : Annexes. Diplôme : Doctorat en sciences En ligne : ../theses/gmecanique/BOU5677.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=5371 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/5677 BOU/5677 Thèse Bibliothèque principale Thèses Disponible
Titre : Contribution à l’estimation des incertitudes de mesure dans la chaine de traitement d’une machine a mesurer tridimensionnelle, Type de document : texte imprimé Auteurs : Hassina Gheribi, Auteur ; Salim Boukebbab, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 135 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : Métrologie tridimensionnelle machines à mesurer du tridimensionnelle (MMT) optimisation des surfaces associées modélisation incertitudes de mesure propagation des incertitudes Three-dimensional metrology Coordinate measuring machines (CMM) optimization of associated surfaces modelling uncertainties of measurement uncertainty propagation علم القياس ثلاثي الابعاد آلات قياس(CMM) الاسطح المثالية والنماذج ارتيابات القياس نشر ارتيابات القياس Index. décimale : 620 Génie Mécanique Résumé : The measurement on a coordinate measuring machine (CMM) is based on the technique of association an ideal surface to the set of palpated points via a mathematical optimization calculus in the sense of least squares. This calculation minimizes the distances between the probed points and the ideal surface. When the probe touches the part, the actual point of contact is unknown; it substitutes an estimated point from the center and radius of the probe and the normal docking. This creates a doubt about the actual position of the palpated point. This doubt is spreading even on the parameters of the associated surface, as well as the geometric construction for the technical verification specifications. Within this framework, standard ISO 9000 requires with the metrologist to estimate the uncertainty with which, it obtained his measurement. In this context, the current work, consists in establishing a program in Visual basic-6 serving on the one hand to determine the parameters characterizing surfaces to be measured and on the other hand, one to estimate uncertainties on these parameters to emphasize the impact of the latter on the checking of the geometrical specifications.
Diplôme : Doctorat en sciences En ligne : ../theses/gmecanique/GHE7333.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10983 Contribution à l’estimation des incertitudes de mesure dans la chaine de traitement d’une machine a mesurer tridimensionnelle, [texte imprimé] / Hassina Gheribi, Auteur ; Salim Boukebbab, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 135 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : Métrologie tridimensionnelle machines à mesurer du tridimensionnelle (MMT) optimisation des surfaces associées modélisation incertitudes de mesure propagation des incertitudes Three-dimensional metrology Coordinate measuring machines (CMM) optimization of associated surfaces modelling uncertainties of measurement uncertainty propagation علم القياس ثلاثي الابعاد آلات قياس(CMM) الاسطح المثالية والنماذج ارتيابات القياس نشر ارتيابات القياس Index. décimale : 620 Génie Mécanique Résumé : The measurement on a coordinate measuring machine (CMM) is based on the technique of association an ideal surface to the set of palpated points via a mathematical optimization calculus in the sense of least squares. This calculation minimizes the distances between the probed points and the ideal surface. When the probe touches the part, the actual point of contact is unknown; it substitutes an estimated point from the center and radius of the probe and the normal docking. This creates a doubt about the actual position of the palpated point. This doubt is spreading even on the parameters of the associated surface, as well as the geometric construction for the technical verification specifications. Within this framework, standard ISO 9000 requires with the metrologist to estimate the uncertainty with which, it obtained his measurement. In this context, the current work, consists in establishing a program in Visual basic-6 serving on the one hand to determine the parameters characterizing surfaces to be measured and on the other hand, one to estimate uncertainties on these parameters to emphasize the impact of the latter on the checking of the geometrical specifications.
Diplôme : Doctorat en sciences En ligne : ../theses/gmecanique/GHE7333.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10983 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité GHE/7333 GHE/7333 Thèse Bibliothèque principale Thèses Disponible
Titre : Contribution à l’étude de la congestion et la régulation du trafic routier pour l’évaluation de la circulation en milieu urbain. Type de document : texte imprimé Auteurs : Mouloud Khelf, Auteur ; Salim Boukebbab, Directeur de thèse Mention d'édition : 10 / 03 /2021 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2021 Importance : 149 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
genie de transportTags : G.transport: Ingénierie des Transports congestion intersections complexes urbaines régulation du trafic performance exploitation du tramway confort régularité complex urban intersections traffic control tram operation comfort, regularity الازدحام التقاطعات الحضرية المعقدة تنظيم حركة المرور الأداء ا لتنظيم، تشغيل الترامواي الراحة الانتظام Index. décimale : 629 Genie-transport Résumé :
Algeria, like all countries around the world, is experiencing a considerable explosion of the automobile fleet due to population growth and the need for travel, which have created an imbalance in the state of road traffic in most Algerian cities, consequently causing the phenomenon of road traffic congestion. The objective of this thesis is to find a solution to congestion in complex urban intersections crossing with a tramway line, through optimal management of mixed traffic. The methodology that has been followed is based on the evaluation and optimization of two main axes, which are the performance of the tramway and the traffic control in mixed traffic intersections (tramways - vehicles). This has been done through an in-depth study of the tramway performance to show how it can worsen or improve the traffic condition, thus through a combination of two static models that allow fluidifying the traffic in this type of intersections, based on real data of the tramway operation and the actual traffic regulation. The results found proved, on the one hand, that Constantine tramway is badly managed and that its performance is weak, especially in terms of comfort and regularity. This has had a negative impact on traffic flow in mixed traffic intersections. On the other hand, the traffic flow regulation in the intersection does not respond optimally to the existing conditions, especially because the timing of the traffic lights does not respond to the actual demand. The two combined models applied in our study improved traffic flow and effectively reduced congestion at the most complex intersection. In addition, the suggested recommendations allow further improvement of the tramway's performance and traffic fluidity. Finally, this work has proved that it is possible to reduce traffic congestion while optimizing the management of mixed traffic control systems, simultaneously, without the use of new infrastructure or additional technologies.
Diplôme : Doctorat En ligne : ../theses/gtransport/KHE7730.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11564 Contribution à l’étude de la congestion et la régulation du trafic routier pour l’évaluation de la circulation en milieu urbain. [texte imprimé] / Mouloud Khelf, Auteur ; Salim Boukebbab, Directeur de thèse . - 10 / 03 /2021 . - جامعة الإخوة منتوري قسنطينة, 2021 . - 149 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
genie de transportTags : G.transport: Ingénierie des Transports congestion intersections complexes urbaines régulation du trafic performance exploitation du tramway confort régularité complex urban intersections traffic control tram operation comfort, regularity الازدحام التقاطعات الحضرية المعقدة تنظيم حركة المرور الأداء ا لتنظيم، تشغيل الترامواي الراحة الانتظام Index. décimale : 629 Genie-transport Résumé :
Algeria, like all countries around the world, is experiencing a considerable explosion of the automobile fleet due to population growth and the need for travel, which have created an imbalance in the state of road traffic in most Algerian cities, consequently causing the phenomenon of road traffic congestion. The objective of this thesis is to find a solution to congestion in complex urban intersections crossing with a tramway line, through optimal management of mixed traffic. The methodology that has been followed is based on the evaluation and optimization of two main axes, which are the performance of the tramway and the traffic control in mixed traffic intersections (tramways - vehicles). This has been done through an in-depth study of the tramway performance to show how it can worsen or improve the traffic condition, thus through a combination of two static models that allow fluidifying the traffic in this type of intersections, based on real data of the tramway operation and the actual traffic regulation. The results found proved, on the one hand, that Constantine tramway is badly managed and that its performance is weak, especially in terms of comfort and regularity. This has had a negative impact on traffic flow in mixed traffic intersections. On the other hand, the traffic flow regulation in the intersection does not respond optimally to the existing conditions, especially because the timing of the traffic lights does not respond to the actual demand. The two combined models applied in our study improved traffic flow and effectively reduced congestion at the most complex intersection. In addition, the suggested recommendations allow further improvement of the tramway's performance and traffic fluidity. Finally, this work has proved that it is possible to reduce traffic congestion while optimizing the management of mixed traffic control systems, simultaneously, without the use of new infrastructure or additional technologies.
Diplôme : Doctorat En ligne : ../theses/gtransport/KHE7730.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11564 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité KHE/7730 KHE/7730 Thèse Bibliothèque principale Thèses Disponible
Titre : Mise en place d'un modèle d'inspection des surfaces à géométries complexes en vue d'une correction process : application à l'usinage des prothèses par prototypage rapide Type de document : texte imprimé Auteurs : Noureddine Azzam ; Univ. de Constantine, Éditeur scientifique ; Salim Boukebbab, Directeur de thèse Année de publication : 2010 Importance : 80 f. Note générale : 01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD Langues : Français (fre) Catégories : Français - Anglais
Génie MécaniqueTags : Surface gauche Algorithme ICP Prototypage rapide Inspection Prothèse du genou Index. décimale : 620 Génie Mécanique En ligne : ../theses/gmecanique/AZZ5639.pdf Permalink : index.php?lvl=notice_display&id=687 Mise en place d'un modèle d'inspection des surfaces à géométries complexes en vue d'une correction process : application à l'usinage des prothèses par prototypage rapide [texte imprimé] / Noureddine Azzam ; Univ. de Constantine, Éditeur scientifique ; Salim Boukebbab, Directeur de thèse . - 2010 . - 80 f.
01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD
Langues : Français (fre)
Catégories : Français - Anglais
Génie MécaniqueTags : Surface gauche Algorithme ICP Prototypage rapide Inspection Prothèse du genou Index. décimale : 620 Génie Mécanique En ligne : ../theses/gmecanique/AZZ5639.pdf Permalink : index.php?lvl=notice_display&id=687 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité AZZ/5639 AZZ/5639 Thèse Bibliothèque principale Thèses Disponible
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