PhD in France
Offers listWhy France ?F.A.Q.Email AlertsPost an offer
or

Forgot Password ?
Offer Details


ESR7: Periodic visco-elastic add-ons PhD Position at KUL (Katholieke Universiteit Leuven)
Ecole Centrale de Lyon, Ecully
LTDS
Engineering 
Full Description:

Objectives: In this work we plan to investigate how acoustic meta-material design can be further improved by adding visco-elastic patches. The trade-off between an increase in stop band width and reduced peak performance should be understood in detail, be modeled and be experimentally validated.

Global treatment of structural-acoustic paths in a typical construction.

• In a first step, the shift cell operator procedure will be implemented for the different visco-elastic material models.
• Next, periodic viscoelastic patches on a bare plate base model will be studied, revealing the relation between added mass and gain in stop band width and overall behaviour.
• Adding complexity, viscoelastic patches will be added to the resonating structure design as presented in [Claeys C., (2014), Design and analysis of resonant metamaterials for acoustic Insulation. KU Leuven, Department of Mechanical Engineering.], optimizing the mass-spring-damper behaviour of the unit cell structure.
• The models will be validated on a demonstrator, which can be manufactured using 3D printing using selective laser melting.
• To increase the efficiency of the proposed models, specific parametric Model Order Reduction schemes will be developed in order to reduce the computational cost, however, to retain the model’s dependence on certain parameters such as the size and the location of the patches.
• Special attention should be spend on variability resulting from variability in the manufacturing and add-on processes.

Expected Results: In the very last part of the PhD work, an optimization scheme will further lead to the best design, given a dedicated target frequency band with a minimum of added weight.



Posted on: 30 May 2016Deadline to apply: 01 October 2016Start Date: 01 October 2016 Duration: 36 months
The Fund category is Mixed Funding and the salary is 35-40k€ annual gross
Doctoral School is Doctoral program in physical and engineering sciences in the Rhône-Alpes Region.

Please connect to your account to see contact details



Back to offer list

Back to home page


PhD in France Website.
© French Embassy in India, CampusFrance 2014.

Contact us

Related Links