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| MECA0031-2 | Kinematics and dynamics of mechanisms
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| Duration : | 30h Th, 30h Pr |
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| Number of credits : |
| Master in Aerospace Engineering, research focus, 1st year | | 5 |
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| Master in Biomedical Engineering, research focus, 1st year | | 5 |
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| Master of science in computer science and engineering, research focus, 1st year | | 5 |
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| Master in Mechanical Engineering, research focus, 1st year | | 5 |
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| Master in Aerospace Engineering, Professional Focus (Management), 1st year | | 5 |
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| Master of science in computer science and engineering, professional focus in management, 1st year | | 5 |
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| Master in Mechanical Engineering, professional focus in sustainable car technologies, 1st year | | 5 |
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| Master in Mechanical Engineering, specialized approach, 1st year | | 5 |
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| Lecturer : | Olivier Bruls |
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Language(s) of instruction :
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| English language |
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Organisation and examination :
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| Teaching in the second semester |
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Course contents :
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| In this course, the student will get familiar with engineering techniques that are used for the design of articulated systems, with applications in the fields of automotive design (power train, suspension), airplane design (flaps, landing gears), space technologies (deployable structures) and wind turbines.
- Introduction : historical remarks, fields of application, topology of a mechanism, degrees of freedom, generalized coordinates
- Kinematics: rigid body (finite rotations, computation of positions velocities and accelerations), multibody systems, formulation using absolute coordinates
- Dynamics: d'Alembert and Hamilton principles, rigid-body dynamics, treatment of kinematic constraints (constraint elimination technique, Lagrange multiplier method), finite element method for multibody systems
- Flexible systems: discrete elastic systems, nonlinear finite element method (strain measures, spatial discretization, bar element, beam element), super-element technique (corotational formulation, modal reduction)
- Numerical methods: time integration algorithms for ordinary differential equations and differential-algebraic equations
- Introduction to the dynamics of mechatronic systems: coupled modelling of a mechanism and its control system (sensors, actuators, controllers)
- Application to problems from automotive design, aeronautics and space technology.
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Learning outcomes of the course :
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- Basic theoretical concepts in multibody system dynamics
- Understanding analysis and simulation methods that are used for the simulation of multibody systems
- Utilization of a simulation software in order to solve practical engineering problems
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Prerequisites and co-requisites/ Recommended optional programme components :
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- Linear algebra
- Numerical methods
- Classical mechanics
- Solid mechanics
- Finite element method
- MATLAB programming
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Planned learning activities and teaching methods :
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| Exercises sessions. Sessions on computer (introduction to SAMCEF/MECANO, see www.samtech.com). Practical work by groups of two students (use of MATLAB and SAMCEF/MECANO software). |
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Mode of delivery (face-to-face ; distance-learning) :
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| The course includes
- lectures
- exercise sessions
- laboratory sessions for an introduction to the SAMCEF/MECANO software
- Two homeworks to be prepared in groups of two students using MATLAB and SAMCEF/MECANO. Sessions will be organized for the follow-up.
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Recommended or required readings :
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- Lecture notes will be available at the "Centrale des cours".
- Reference book: M. Géradin, A. Cardona, Flexible Multibody Dynamics - A Finite Element Approach, John Wiley and Sons, Chichester, 2001.
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Assessment methods and criteria :
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| Two elements are considered for the evaluation
- the theory exam (oral, 50%)
- the practical works (report and oral defense, 50%)
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Work placement(s) :
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Organizational remarks :
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| For the practical works, students are invited to get MATLAB and SAMCEF Student software. |
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Contacts :
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| Olivier Brüls: o.bruls@ulg.ac.be |
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