Research news at MINES ParisTech
MINES ParisTech has been recognized in the prestigious Times Higher Education World University Rankings, joining the Top 200 for the first time.
MINES ParisTech enters Top 200!
Good news for MINES ParisTech, the Engineering school has shot up the rankings from 226-250 to 193.
Her score, this year, is remarkable as the French universities tend to lose ground.
Read moreEarth sciences and environment
Short term industrial goal!
Elodie Sorlier, doctor of MINES ParisTech since 5 juin 2009
Improvement in the service life of cutting tools
Thermomechanical stresses are very high under nowadays conditions where oil and gas wells are drilled deeper. They are responsible for heavy demands on tools, in terms of shock and abrasion. The service life of the active part of these drilling tools is therefore strongly decreased. As a result, the change of tools, which is very expensive and risky, becomes more frequent.
In the study of Elodie Sorlier, the mechanical properties of the graduated cutters have been tested in terms of hardness, shock resistance, resistance to abrasion and compression. Furthermore, residual stresses have been measured on commercial and graduated cutters. These mechanical tests show that the gradation process developed in this work makes it possible to improve the shock resistance of the cutters without decreasing their abrasion resistance. These results can be the beginning of the development of a new type of cemented carbide WC-Co, with applications to fields broader than drilling.
This study has been carried out in partnership with two laboratories of MINES ParisTech Centre of Materials in Evry and Centre of Geosciences in Fontainebleau, for Varel Europe, a drilling tool manufacturer based at Ibos (64).
Read moreEnergy and process engineering
Assisting low energy consumption building design
To gain professional experience with MINES ParisTech
Maxime Trocmé's PhD thesis took place within the framework of a partnership between the Center for Energy and processes of MINES ParisTech and VINCI (World largest construction company). The work was full time conducted in the R&D department of VINCI Construction France.
After a motivating six-month internship at the CEP and engineering school graduation, Maxime Trocmé was desirous to acquire more competence on building eco-design. This doctoral thesis was a way to fulfil this wish in a theoretical (building models) and practical way (real building studies). Since it took place within the framework of a CIFRE convention, it was also an opportunity to gain professional experience.
Mechanical and Materials engineering
Morphology and properties of polylactide and polyhydroxyalkanaotes blends
Bioplastic blends: challenges and opportunities
The objective of the Thibaud Gérard's PhD work is to provide a systematic and detailed study of the morphology and properties of polylactide and polyhydroxyalkanaotes blends prepared in the molten state. Polylactide is derived from renewable resources such as corn or sugar and polyhydroxyalkanoates are produced by bacterial fermentation of sugar or lipids.
This work was performed in the frame of the Industrial Chair on Bioplastics, organised by CEMEF/MINES ParisTech and supported by Arkema, L’Oreal, Nestlé, PSA and Schneider Electric through the “Fondation des Industries Minérales, Minières et Métallurgiques Françaises”.
Mathematics and systems
Computer science in real time, Robotics, Automation
Modeling and control of an antagonistically actuated tendon driven anthropomorphic hand
The thesis of Maxime Chalon focuses on the hand. It has 19 degrees of freedom, each being actuated by two flexible antagonistic tendons. Because the stiffness of the tendons is not linear, it is possible to adjust the mechanical stiffness of the joints, similar to the co-contraction of human muscles, in order to adapt to a task. However, the stiffness adjustability rises new challenges in modeling and control. The state of the art usually focuses on the problems of tendon-driven systems or flexible joint robots but seldomly both simultaneously.Economics, management, society
Management sciences, interfacing with ecology and agronomy
Fostering the collective design of innovation in the field of environmental resource management
Elsa Berthet’s PhD thesis in management sciences deals with the stake of reconciling agriculture and environment. It highlights the fact that a new challenge for scientific research is to learn to manage environmental regulations within agro-ecosystems (i.e. cultivated ecosystems) in order to make agriculture sustainable. This thesis aimed to define a design approach of agro-ecosystems: can innovative design be applied to these specific objects? What are the methods and appropriate modes of governance to design and manage agro-ecosystems?
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