L3 - Mechanical Engineering Science and Technology

This course is an introductory advanced module in mechanical design. It provides tools for selecting appropriate technologies to fulfill standard mechanical functions (mounting and rotational guidance using bearings), based on partially provided functional specifications, industrial documentation, and regulatory standards. Laboratory sessions analyzing existing mechanisms and designing basic technological solutions will complement this course.

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Language lab courses designed to develop the five language skills;

Listening Comprehension & Speaking

Reading Comprehension & Writing

Oral Interaction

Continuous Speaking - Presentations

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Materials strength (RdM) is a specific branch of continuum mechanics that enables the calculation of stresses and strains in slender structures made of various materials (machinery, mechanical engineering, building, and civil engineering). It involves a 1D static model of a deformable solid treated as a beam connected to a frame and subjected to external mechanical loads.

The RdM makes it possible to reduce the study of a structure’s global behavior (the relationship between loads—forces or moments—and displacements) to that of the local behavior of its constituent materials (the relationship between stresses and strains). Mechanical stresses can be viewed as the “cohesive forces ” within the material. The strains of a physical object are observed as changes in its dimensions or overall shape.

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This course introduces students to project management by addressing the key challenges related to business performance. Students find themselves in a position to oversee the key phases of the product design process.

This project-based approach allows for a detailed analysis of each phase of the design process through case studies. Students thus learn methods ranging from idea generation (creativity, functional analysis) to the development of the product’s architecture.

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The objective of this first module on fluid mechanics is to provide a basic understanding of the behavior of industrial fluids (air, water, hydraulic fluid) in order to size simple systems involving fluids in static or dynamic conditions (flow rates, pressure, velocity, pressure drops, etc.). The focus is on the study and design of hydraulic systems.

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Rheology is the study of the deformation and flow of materials under the influence of an applied mechanical load. In the field of materials science, this discipline is particularly relevant to the following areas:

            - Viscoelasticity

            - Plasticity

            - Viscoelasticity

            - Non-Newtonian fluids

In practice, rheology makes it possible to characterize the macroscopic mechanical properties of materials whose behavior cannot be described by classical theories of elastic solids and Newtonian fluids (with constant viscosity). Such materials can thus be considered to exhibit behavior that lies between that of a solid and a fluid, and between elastic and viscous behavior.

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This course provides the basic tools needed for the functional dimensioning of mechanical systems. After introducing one-dimensional dimensioning and its limitations, “3D” geometric tolerancing (GPS), in accordance with ISO standards, is introduced to teach students how to read and then write geometric tolerances based on the functional requirements of a part within a mechanical system. The study of the hyperstaticity of the mechanism and its connections then enables the establishment of the functional conditions required to ensure the assembly and proper operation of the system. Dimensional and geometric tolerances are then determined by setting up and resolving dimension chains. Finally, once the parts have been manufactured, it is necessary to perform metrological inspections and verify their compliance with the established functional dimensions.

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This course is a core module in mechanical design technology. It enables students to apply the concepts of standard component sizing—covered primarily in the technology courses in the second year (Introduction to Mechanical Design) and third year (Structure and Sizing, Mechanical Design 1 and 2)—to existing mechanical systems. It also indirectly draws upon all other course units in rigid and deformable solid mechanics, which were primarily covered in L2 and L3.

The focus is on discovering and comparing real-world technological solutions—thereby enriching technological literacy—as well as on researching, critically evaluating, and performing preliminary sizing of technological solutions compatible with the system under study, based on specifications for partial (re)design. Finally, the implementation of the selected solution involves creating an accurate sketch—in the sense of an industrial drawing—both on paper and using CAD software, with complete dimensions for one of the mechanism’s parts.

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This course unit concludes the technology component of the Bachelor’s degree in Mechanical Engineering, CDPI track, which consists of four modules. It is designed to provide students with the tools to understand and design complex mechanical systems (automatic transmissions, power transmission mechanisms, etc.).

Half of this module consists of lectures and tutorials focused on studying pulley-belt systems, clutches and brakes, and preloaded systems, with applications involving preloaded bearing assemblies. At the same time, the course includes lab sessions analyzing various mechanical systems (CVT transmissions, automatic transmissions, brakes, clutches, preloaded bearing assemblies, etc.), as well as design lab sessions to apply the skills acquired to specific case studies.

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Language lab courses designed to develop the five language skills;

Listening Comprehension & Speaking

Reading Comprehension & Writing

Oral Interaction

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• read a technical drawing of moderate difficulty
• identify standard mechanical components on a drawing
• Identify how a moderately complex mechanical system works based on a general diagram
• Draw a part from multiple views, following the rules of projection
• Identify and draw the intersections of a cylinder and a plane, two cylinders, a plane and a cone, and a cylinder and a cone
• draw cross-sectional views and sections
• Extract a part from a medium-difficulty assembly drawing
• use of the basic functions of SolidWorks software (Part, Assembly, and Drawing modes)

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Research and Development (R&D) is both the result of teamwork and individual talent, all in the service of innovation (applied research) and knowledge (basic research). The topics are diverse and varied, but a certain methodology is necessary to address any R&D challenge.

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The objective of this course is to model solid continuous media, focusing initially on elastostatics under the assumption of small perturbations. In this course, we will explore the application of the fundamental principle of statics to deformable solids. To this end, the following concepts are introduced: tensors and tensor fields, tensor algebra and analysis, boundary value problems, the fundamental principle of statics, and the principle of virtual powers. Techniques for the analytical solution of classical problems and energy-based approaches will be covered. This course is fundamental to the education of students in mechanics, whether they are pursuing careers in design and engineering or in R&D.

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This project is initiated by a request from a client (project sponsor) who presents their needs to the students. It involves an application that places the student in the role of a service provider to meet the client’s needs or requests. This project aims to replicate the methods used in the business world.

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