Ongoing research projects
Ongoing research projects in iMMC (February 2020)
This a short description of research projects which are presently under progress in iMMC.
Hereunder, you may select one research direction or choose to apply another filter:
List of projects related to: multi-body systems
Researcher: Nicolas Docquier
Supervisor(s): Paul Fisette
The project aims at improving railway track lifecycle by improving its components such as the ballast, the sleeper, elastic pads, ... It consists in developing computer models coupling multi-body system dynamics (MBS) and granular modelling method (the discrete element method, DEM). Full scale experiments are conducted in parallel to validate the numerical models and assess the developed solutions.
|COMPACTSWIM : compliant actuation and embodied intelligence in biomimetic propulsion for swimming : principles, simulation, and design.|
Researcher: Caroline Bernier
Supervisor(s): Philippe Chatelain, Renaud Ronsse
This project is in between Robotics and Fluid Mechanics and aims at the design of robust and efficient biomimetic swimming agents. The approach used to tackle the problem distinguishes itself from a broad body of work by a unique combination of multi-disciplinary tools: (i) high-fidelity Computational Fluid Dynamics to simulate self-propelled swimmers; (ii) compliant actuators to generate energy-efficient force-controlled patterns; (iii) oscillator-based coordination to distribute the computational load within a biologically inspired controller; and (iv) advanced optimization algorithm to calibrate the control schemes for a large variety of gaits. Different and complementary swimming gaits will be investigated, like energy-efficient or fast. Using compliant actuators will allow the swimmer to sense the fluid reactions being useful for its propulsion and exploit energy storage in the elastic deformations of the actuator.
|A dynamic-based approach for road vehicle design optimization|
Researcher: Aubain Verle
Supervisor(s): Paul Fisette, Bruno Dehez
Due to urban zone densification and energy rarefaction, some facets of life habits have to be revised. The mobility doesn’t derogate from this trend and is one of the major future challenges. Automotive industry is developing new solutions to cope with the increasing problem of mobility, the need for energy efficiency and customer requirements. Facing this multiplication of objectives, often conflicting, it is quite unlikely that one particular solution would satisfy all customers in all daily needs as it was with the car until now. Several new kinds of vehicles appear, each of them being able to answer a particular use. In the special case of urban and personal mobility, tilting three-wheelers seem to be a promising solution. Small and agile, they improve the traffic flow while the associated reduction of weight allows better energy efficiency.
Because of the increase – in number and quality – of the criteria imposed to tomorrow’s vehicles, the industry must propose new types of morphologies, incorporate new technologies and detect a maximum of synergies between the latter. Thus we observe a constant increasing design tasks complexity while the development times are shorter than ever. There is a real need for global design methodologies that include, from the earliest stage of the process, a multitude of components among which the dynamics takes place.
This work aims at developing a design methodology especially dedicated to road vehicles. The method has the particularity to enable to manage the trade-off between dynamic performances and mechanical feasibility. The method is being applied to a new three-wheeler under development in our laboratory. The main characteristics of this vehicle are a unipersonal seated position, a narrow track and a electric motorization.
We achieved the design of a first prototype on the basis of the optimization processes. In particular, we develop some very specific mechanical arrangements especially designed to maximize the dynamic performances of the tilting vehicle suspensions. Moreover, it is expected that a first implementation of the prototype will be built in the future to carry out some comparison between experiment and simulation.
|Development of a haptic feedback device for digital keyboards based on real-time multibody models of piano actions|
Researcher: Sébastien Timmermans
Supervisor(s): Paul Fisette
The touch of a piano keyboard is an essential sensory information for pianists and results from the dynamics of the actions equipping traditional acoustic pianos. Present-day digital instruments offer the possibility of nuancing sound thanks to certain dynamics which imitates that of a traditional piano, but which is far from reproducing the finessed required by pianists.
His project aims at developing a haptic feedback device for digital keyboards, based on (i) multibody models of piano actions using Robotran software, (ii) the use of movement sensors and high dynamic actuators (iii) the study of the phenomenon of touch, with our partners in musicology (the Museum of Musical Instruments of Brussels and the Museum of Philharmonic Music of Paris).