Research activities 

My research activities are made accessible to others through the development of SDT, which allows the industrial deployment of simulation and vibration testing processes,  and deal with  

• Damping from viscoelastic and contact/friction mechanisms
  • Design of viscoelastic damping treatments
  • Non-linear viscoelastic and hysteretic behavior at material and structural level. 
  • Homogenization 3D woven composite materials.
• Model reduction
  • Reduction of large parametric models: tradeoffs needed for applicability to cases with geometry given millions of DOF, dynamics in thousands of modes, tens of parameters. 
  • Incorporation of reduced model for frequency and time domain simulation of damping mechanisms. 
  • Use of spatially periodic/Floquet computations for basis learning phases
• Experimental modal analysis 
  • Characterization of experimental errors for each sensor/actuator/mode
  • Parametric modal testing : influence of temperature, pressure, static loading with applications to damping characterization, brake squeal, rail pad characterization 
  • Hybrid models, relation between expansion and updating or state/parameter estimation 
• Time simulation of systems with contact/friction
  • Brake squeal simulation and analysis of limit cycle tests in time varying configurations
  • Problems with moving contacts: pantograph/catenary interaction, rail/wheel contact
  • Problems with time varying contacts : bolted assemblies, intermittent contact in damages
  • Simulation of systems with piezoelectric actuators and sensors 

Publications

https://www.sdtools.com/Publications.html   
https://www.researchgate.net/profile/Etienne_Balmes   
http://www.scopus.com/authid/detail.uri?authorId=56025789000&origin=resultslist   
http://scholar.google.fr/citations?user=sTdlZ8QAAAAJ&hl=fr   
http://www.researcherid.com/rid/E-4354-2012

Teaching activities 

• Vibration of Mechanical Systems, 2^nd year of Engineering (M1 level) at ENSAM
• Modal Analysis, ENSAM (Provir, M2 level) & CentraleSupélec (Master MS2SC)

Accès/Office location