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Academic literature on the topic 'Camions – Itinéraires – Modèles mathématiques'
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Dissertations / Theses on the topic "Camions – Itinéraires – Modèles mathématiques"
Barkaoui, Mohamed. "Approche évolutionnaire pour la planification d'itinéraires dans un environnement dynamique." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27074/27074.pdf.
Full textChanut, Stéphane. "Modélisation dynamique macroscopique de l'écoulement d'un trafic routier hétérogène poids lourds et véhicules légers." Lyon, INSA, 2005. http://theses.insa-lyon.fr/publication/2005ISAL0040/these.pdf.
Full textThe traffic composition is one of the phenomenon that road managers have to address. In particular a question arises: the impact on the flow of trucks. This thesis proposes a traffic flow model making it possible to describe the behavior of a heterogeneous traffic. This proposed model is a macroscopic one, with two classes. The traffic is described like a continuous flow and is assumed to be composed of two homogeneous classes: trucks and passenger cars, which are different from their speeds and their lengths. The model is completely solved and a numerical resolution is built with a Godunov scheme. A particular attention is paid to the passing phenomenon and its effects on the flow by a specific modelling. The applications of the model are numerous, in particular for what concerns the test of regulation strategies for a heterogeneous traffic
Bergeron, Guyard Alexandre. "Finding Optimal Paths on Dynamic Road Networks." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25830/25830.pdf.
Full textThis document examines different methods to compute optimal paths on dynamic graphs. Two general approaches are compared: deterministic and probabilistic. The deterministic approach takes for granted knowledge of the environment’s future behaviour. The probabilistic approach attempts to model and manage uncertainty. A dynamic version of Dijkstra’s algorithm is presented for the deterministic solution. Markov Decision Processes and Partially Observable Markov Decision Processes are analysed for the probabilistic context. Applications and measures of performance are given for each approach. We observe a reverse relationship between computability and applicability of the different approaches. Deterministic approaches prove a fast and efficient way to solve simpler versions of the problem. POMDPs are a powerful theoretical model that offers little potential of application. An alternative is described through the use of MDPs.
Vigneault, Sarah. "Développement d'un modèle numérique reflétant le comportement dynamique des ressorts à lames de véhicules lourds." Master's thesis, Université Laval, 2020. http://hdl.handle.net/20.500.11794/38303.
Full textA leaf spring is the main component of the mechanical suspension on heavy trucks. The dynamic behavior of the leaf spring is very complex. This research aims to develop a numerical model that reflect the dynamic behavior of different types of leaf springs, such as: double-eye, eye-roller and roller-roller. Tests are performed to experimentally characterize the leaf springs. Then, a hybrid model is developped to represent the dynamic behavior efficiently and at low cost by combining the non-physical model of Bouc-Wen and the Adams Car finite element model. The Bouc-Wen model is non-physical and models the hysteresis behavior of the leaf spring while the finite element model is physical and represents the vertical and longitudinal movements of the leaf spring following the application of a load.
Gagnon, Louis. "Développement d'un modèle dynamique et quantification de l'influence du profil de la route sur un véhicule." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/30171/30171.pdf.
Full textA multibody model of a semi-trailer truck with 331 degrees of freedom was built using an open source software. It was calibrated and validated by an on road experimental campaign. There, the signal from a photodetector, 10 acceleration signals, the weight distribution, meteorological data, and the longitudinal profile have been collected. In order to properly represent the interaction with the road, a dynamic tire model has been developed and it is precise at up to 100 Hz. The latter was calibrated with data obtained from a trustworthy finite element model. Finally, the truck model was used in a parametric study which allowed to obtain the relationships between various road surface evaluation criteria and the efficiency of vehicles. These criteria are the IRI, the HRI, and many more inspired from those two. The efficiency is evaluated in terms of fuel consumption, vehicle wear, passenger health, and security.
Butterbach, Stéphane. "Stockage d’énergie électrique par association de supercondensateurs et de batteries au plomb pour véhicule lourd." Compiègne, 2012. http://www.theses.fr/2012COMP2017.
Full textThis thesis presents a hybrid energy storage made of lead-acid batteries and supercapacitors for an urban waste collection electrical vehicle. The simulation of the waste collection vehicle takes into account a real-world driving cycle (daily cycle based on Artemis 400), a specific energy management and the sizing of the hybrid storage. Simulations show a 20% reduction of the consumed daily energy thanks to the brake recovered energy. The battery current clipping allows the reduction of battery losses with consequences on the battery lifetime. The battery cycling test bench developed in the laboratory confirmed the increase of the battery lifespan. An important part of the document was dedicated of the lead-acid battery model. This model is based on Randles equivalent circuit and takes into account the non linear relationship of the model parameters and the battery state of charge and the current. The charge acceptance was also modeled. The parameters identification is based on chronoamperometry and electrical impedance spectroscopy
Mhanna, Mohannad. "Analyse des vibrations induites par le trafic routier et étude de l’efficacité des systèmes de réduction de ces vibrations." Thesis, Lille 1, 2012. http://www.theses.fr/2012LIL10055/document.
Full textTraffic induced Vibrations, especially by buses and heavy vehicles are a major concern in urban areas. The study of traffic vibrations is complex because it requires taking into account several aspects such as: vehicle modeling, the interaction between the vehicle and the road pavement and the wave propagation in free field or in a neighboring structure. The present work aims to study the vibrations induced by traffic in order to estimate their impact on the environment. The study was conducted by a three-dimensional numerical modeling in finite differences. The proposed model takes into account the mechanical characteristics of the vehicle, the interaction between the vehicle and the various types of road pavement and the vehicle speed. This model is validated by in situ measurements. In addition, we present measurements realized in cooperation with CETE North Picardy on an isolation method. The effectiveness of various isolation devices usually studied in the literature is analyzed. These devices include the trench barriers, the heavy surface blocks and the wave impeding blocks (WIBs)