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Ecole nationale supérieure de l'Énergie, l'Eau et l'Environnement
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Engineering school in energy, water and environment

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Mechanical design - 4EUS3CME

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Number of hours
- Lectures : 24.0
- Tutorials : -
- Laboratory works : 36.0
- Projects : -
- Internship : -
ECTS : 5.0
Officials : Jean-Luc AMEN

Goals

This module aims at providing students with skills in mechanical design and illustrating this knowledge on fluid devices, as they are in the kernel of the Mechanical and Energy industries.

The lectures offered focus on:
A – Addressing topics such as:

arrangement, classification of linkages and mechanisms (mechanism theory);
modeling mechanical interactions between rigid bodies;
rationales for design, calculation and choice of standard components (rotational motion guiding, linear motion guiding)

B – Providing the students with a basic understanding of fluid power transmission: hydraulic circuits and components:

knowledge of the various components involved in these power transmissions;
examples of hydraulic circuits (Discrete circuits essentially);
introduction to the dynamic simulation of these systems.

C - Introducing the basic concepts of CAD modelers to model components.
Identify concepts of Graphic User Interface (GUI), primitive shape modeling and shape modeling methods. Introduction to modeling free-form shape modeling. Concept of accuracy of a modeler.

Content

Design and dimensioning:

Linkages - Mechanisms - Elements of mechanism theory - Mechanical interactions between rigid bodies: classical mechanical models.
Rotation guiding: the linkage and its technology: bushings, bearings, examples;
Translational guiding: the linkages, examples of architecture, buttressing, examples.

Fluid power:

Hydraulic fluids - Volumetric devices (pumps and motors) - Jacks (linear and rotary) - Accumulators – Hydraulic valves – Relief valves - Pressure and flow control valves – Complementary components of a circuit (tank, ...).
Study of conventional hydraulic circuits - Introduction to the dynamic simulation of these circuits and components using AMESim ©.

CAD basics:

Modeling principle using the B-Rep and CSG approaches, construction tree and parameterized models,
Update process of a parameterized model, concept of accuracy of a CAD geometric model;
Lab work using a CAD (if possible, same CAD software as in the first year of the student training)

Prerequisites

-Basic knowledge in technology of mechanical devices: blueprint understanding, technical drawing, kinematic schemas;
-Classical Mechanics, Strength of Materials and Fluid Mechanics.

Tests

Session normale / First session :
ER : Evaluation Rattrapable / ER assessment : devoir surveillé écrit de 2h (Oléohydraulique) / 2 hours supervised written exam (Fluid Power).

EN : Evaluation non rattrapable/ EN assessment : comptes rendus de BE / Lab reports.

Session de rattrapage / Second session :
ER : la note obtenue en session 2 remplace la note ER session 1 / new examination to replace ER assessment
EN : Evaluation non rattrapable / EN assessment: Retaking this assessment is not possible.

Cadre « CALCUL DE LA NOTE » :
Moyenne de l'UE / Course Unit assessment = ER 30% + EN 70%.

CC 70% + CT 30%

Calendar

The course exists in the following branches: