[robotics-worldwide] [jobs] 18-month post-doctoral research grant: innovative rotative actuator based on shape memory alloy (ARIM)

Jean-Christophe FAUROUX jean-christophe.fauroux at ifma.fr
Thu Nov 20 00:31:53 PST 2014


Dear All

Please do find an open post-doctoral position of 18 months at Institut 
Pascal, Clermont-Ferrand, France. We are looking for a candidate both 
gifted in mechanical engineering and material science for designing a 
new type of Shape Memory Alloy actuator.

Sincerely

Jean-Christophe



_Title:_*18-month post-doctoral research grant: innovative rotative 
actuator based on shape memory alloy (ARIM)*


_Key-words:_post-doctoral position; mechanical actuator; shape-memory 
alloy; active structure; mechanical design


_Duration and amount of grant:_18 months, 1900 euros/month


_Presentation of the research institute:_

The Institut Pascal is a structuring pole in the field of the Sciences 
of the Engineering and the Systems on the university campus of 
Clermont-Ferrand (France). It is recognized by the Blaise Pascal 
University (UBP), the French Institute for Advanced Mechanics (IFMA) and 
the French Center for Scientific Research (CNRS) through the joint 
research unit UMR CNRS/UBP/IFMA 6602. The Institut Pascal merges the 
expertises of researchers working in Engineering Sciences (automatic, 
mechanical, electronics, process engineering) and Fundamental Sciences 
domains (physics, biochemistry). This thematic variety constitutes a 
real strength for a real multidisciplinary synergy where from can be 
born systems and innovative technological objects answering economic and 
societal demands. The Institut Pascal is organized in four thematic axes:

  *

    /Mechanics, Materials and Structures/(MMS): this axis develops
    researches in three main topics i) materials and structures,
    ii) uncertainties management in structural mechanics, iii) machines,
    mechanisms and industrial systems.

  *

    /Image, Systems of Perception, Robotics/(ISPR): this axis works in
    the field of the Artificial Perception and Vision for Robotics
    Systems Control. Its objective is thus the development of
    theoretical, methodological and architectural concepts for
    perception and control of the artificial systems.

  *

    /Process Engineering, Energetics and Biosystems/(GePEB): this axis
    deals with problems which belong to the bioprocess engineering
    (fermentation, environmental, food processes) by means of a
    multi-scale approach where the "process" characteristics are modelled.

  *

    /Photonique, Waves, Nanomaterials/(PHOTON): this axis collects
    theorists of physics of semi-conductors and electromagnetic optics,
    and experimenters in synthesis, structuralization and fine analyses
    with advanced high technology. It also possesses recognized
    expertises in electromagnetic compatibility.

In addition, several multidisciplinary actions are developed: Machines 
and robots, Multi-scales materials and modelling, Innovations for the 
bio-processes, Quantitative imaging, Probability Approaches.


_Details of the research project:_

The project deals with the design, modelling, manufacturing and control 
of a rotative actuator using components in shape-memory alloy (SMA). The 
technical objective is to develop a demonstrator of a rotative actuator 
using SMA wires. An advantage of using such active materials is the 
ability to provide high torque compared with classical multistage 
planetary gear mechanisms, while being more compact and keeping free the 
inner space (gear reducer with hollow shaft). Another advantage is to 
obtain mechanisms with limited backlash, specifically for robotic 
applications. An expected drawback is the slow actionning due to a 
control based on the temperature change of the SMA. So a 
thermomechanical modelling (beam theory, finite element analysis) will 
be used to help in the design. The analysis will be placed in the 
general frame of the integration of SMA actuators in machines and 
mechanism. For this purpose, the database which was developed in the 
European project "thinkMotion" will be used to estimate the relevance of 
employing SMA actuators in a set of machines (see the Digital Mechanism 
and Gear Library*). Finally, the study will open perspectives for a 
better mastering of the distribution of actuators and flexibilities in 
robotic architectures.

Three phases are proposed for the project:

 1.

    design, modelling, manufacturing and experimental analysis of the
    demonstrator;

 2.

    browsing of the thinkMotion database to evaluate the relevance and
    apply the developed concept to a set of machines;

 3.

    discussion about the distribution of actuators and flexibilities in
    machines and robots.


The expected results and perspectives are: publications in international 
journals on innovative mechanisms and mechatronics, valorisation and 
patent, numerous potential industrial applications (gear reducer with 
hollow shaft...). Moreover, the concept can be easily derived to other 
configurations (in term of scale, rotation amplitude, torque...).


_Profile of the applicant:_

The applicant will have an expertise in mechanical design and will have 
balanced abilities in machine design, control and modelling of 
structures. He will be interested both in modelling and experimental 
topics. Knowledge on database will be also appreciated. The candidate 
will have performed a PhD thesis on a topic covering one or several 
expertise domains



-----------------------------------------------
Jean-Christophe FAUROUX   Associate Professor
Machines, Mechanisms & Robotic Systems
Institut Pascal UMR 6602 UBP/CNRS/IFMA
IFMA - French Institute for Advanced Mechanics
Campus de Clermont-Ferrand / Les Cezeaux
CS 20265, 63175 AUBIERE Cedex, FRANCE
Tel : 00.33.4.73.28.80.50   Fax : 00.33.4.73.28.81.00
Mail: fauroux at ifma.fr  Web : http://www.ifma.fr
-----------------------------------------------


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