I am a university lecturer and researcher working for a better understanding of the stability of structures. Whether they are large or small, rigid or flexible, in a gravitational or electrostatic field, periodically repeating in space or in time, why is it they sometimes collapse and sometimes not? And do we want to prevent this loss of stability or make the best of it?

With the help of students and colleagues, maths, computers and model experiments when possible, I strive to answer practical problems like the dynamics of imperfect rotating machineries or the large vibrations of electromechanical systems at the nano-scale, or more fundamental ones such as the relation between geometry and mechanics in slender elastic structures, or the stability of periodic mechanical states in time or space.

Name: Arnaud Lazarus
Address: Sorbonne Université,
Faculté des Sciences et Ingénierie,
Institut Jean le Rond d'Alembert,
Tour 55-65, Bureau 511,
4 place Jussieu,
75252 Paris Cedex 05, France
Telephone: +33 01 44 27 25 59
E-mail: arnaud.lazarus(at)sorbonne-universite.fr

A curriculum Vitae, updated on 11/25/2018, can be downloaded [here].
ORCID, Google scholar or HAL profile.

Opened internship position at Institut d'Alembert:

with S. Protière and S. Neukirch

We are looking for motivated and serious candidates at a master's level degree in mechanical engineering or applied physics. The proposed internship will consist in exploring and exploiting the extreme parametric instabilities in mechanical systems, starting with the study of an archetypal electromagnetic pendulum whose mechanical state periodically varies between a diverging (unstable) and oscillating (stable) phase. Depending on the aspirations and skills of the candidate, the aim of this work will be to derive and analyze numerical or experimental models in order to rationalize the considered instabilities. The project could be followed by a PhD thesis on a similar subject at Institut d'Alembert.

A brief proposal of this internship can be downloaded [here].