L2 - Science and Technology in Mechanics

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This ECUE provides knowledge on the different manufacturing processes (Machining, Foundry, Forge, Plastics....).

It also allows the acquisition of the classical drawing rules of mechanical parts in adequacy with the most common methods of obtaining the rough parts.

On the basis of a specification and/or a definition drawing, students must be able to: choose a manufacturing or assembly process by carrying out the layout related to the process.

They must also be able to produce a prototype by traditional machining or on a "rapid prototyping" NC machine, and to check the specifications during and after machining. They will also learn about casting and welding during a practical course.

Finally, it allows the future designer to become aware of the problems encountered in the methods office to produce parts from a definition drawing.

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This module is a basic module on the physical properties of materials and techniques for sizing mechanically simple components or systems.

Material properties are discussed through tensile testing, binary diagrams and microstructure.

The dimensioning of a component includes the choice of the most suitable material, the definition of the geometry to ensure static and fatigue resistance. The dimensional analysis approach also makes it possible to determine the characteristics of a more complex system from experiments conducted on a scale model.

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This unit concerns the study of the mechanics of rigid solids. It is the natural continuation of the unit devoted to the kinematics and statics of rigid solids in L1. In this unit we will place ourselves in a dynamic framework and apply the Fundamental Principle of Dynamics. The writing of this principle requires the knowledge of the torsor of the external actions, studied in L1, but also the knowledge of the dynamic torsor. The latter can be calculated with the help of the kinetic torsor which, for a rigid solid, uses the notion of moment of inertia. The main applications studied in this unit concern the rigid solid or simple cases of articulated systems of rigid solids. In addition, we will study the particular case of contact and friction actions (Coulomb friction) and we will approach the Kinetic Energy Theorem.

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This module is a basic module on the physical properties of materials and techniques for sizing mechanically simple components or systems.

Material properties are discussed through tensile testing, binary diagrams and microstructure.

The dimensioning of a component includes the choice of the most suitable material, the definition of the geometry to ensure static and fatigue resistance. The dimensional analysis approach also makes it possible to determine the characteristics of a more complex system from experiments conducted on a scale model.

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This module is a continuation of the HLME303 module and introduces the first analysis tools necessary for the implementation of a design approach for mechanical systems. It aims to give methods of analysis and dimensioning of mechanical systems built on the most widespread technological components.

This module is based solely on lectures and practical work, but maintains a strong interaction with module HLME401 "Technology Project" in order to put into practice all the acquired skills on a case study. Initially, the main methods of modeling mechanical systems (functional analysis, kinematic diagram) will be addressed. Then, we will be interested in the essential technological components used to carry out guidings in rotations (plain bearings) or to transmit power (belt, gear).

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The first-semester course reviews the grammar essential for oral and written communication(tenses and aspect, asking questions, comparisons and superlatives, passive voice) as well as essential general vocabulary(numbers, measurements, shapes); it also includes an introduction to technical vocabulary(basic building materials, plane engine, bike parts, electronic device) through themed lessons and videos in the field of mechanical engineering.

Finally, numerous activities are offered to promote oral expression skills (presentation vocabulary, simulations, role-playing and board games), so that students are able to describe the specific features, functions and uses of a piece of technical equipment of their choice in an oral presentation by groups of two.

S4

Grammatical aspects are limited to a review of modal auxiliaries.

The vocabulary is much more focused on the various elements involved in the design and operation of different types of heat engines, and on emerging technologies(drones, driverless vehicles, 3D-printing).

Students are also expected to produce a CV in English and practice writing emails in a formal style, so as to be prepared for internship or job-seeking situations where fluency in English will either be necessary or an additional skill.

The practice of expression is always the main objective, with an individual oral presentation at the end of the semester of their second-year project in mechanics.

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This course provides skills in computer-aided design and mechanism simulation.

In CAD, aspects such as part mode (3D design of a mechanical part), assembly mode (design of a mechanism), drawing of parts or overall drawings will be covered.

The kinematic and dynamic behavior of rigid solid mechanisms will be simulated using CAD/CAM software.

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This project allows the students, coming from different initial trainings, to apply the theoretical and/or technological notions seen before and in the other modules of the training, within the framework of the study of a proposed mechanical system or of their choice (after validation).

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