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  Computation of quasi-periodic localised vibrations in nonlinear cyclic and symmetric structures using harmonic balance methods 

  FONTANELA, Filipe; GROLET, Aurélien; SALLES, Loïc; HOFFMANN, Norbert (Elsevier BV, 2019-01)

  In this paper we develop a fully numerical approach to compute quasi-periodic vibrations bifurcating from nonlinear periodic states in cyclic and symmetric structures. The focus is on localised oscillations arising from ...
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  Multistability and localization in forced cyclic symmetric structures modelled by weakly-coupled Duffing oscillators 

  PAPANGELO, Antonio; FONTANELA, Filipe; GROLET, Aurélien; CIAVARELLA, Michele; HOFFMANN, Norbert (Elsevier BV, 2019-02)

  Many engineering structures are composed of weakly coupled sectors assembled in a cyclic and ideally symmetric configuration, which can be simplified as forced Duffing oscillators. In this paper, we study the emergence of ...
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  Dissipative solitons in forced cyclic and symmetric structures 

  HOFFMANN, N.; FONTANELA, Francesco; GROLET, Aurelien; SALLES, Loïc; CHABCHOUB, Amin; CHAMPNEYS, Alan; PATSIAS, Sophoclis; HOFFMANN, Norbert (Elsevier BV, 2019-02)

  The emergence of localised vibrations in cyclic and symmetric rotating struc-tures, such as bladed disks of aircraft engines, has challenged engineers in thepast few decades. In the linear regime, localised states ...
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  Comparison of ANM and Predictor-Corrector Method to Continue Solutions of Harmonic Balance Equations 

  WOIWODE, Lukas; BALAJI, Nidish Narayanaa; KAPPAUF, Jonas; TUBITA, Fabia; GUILLOT, Louis; VERGEZ, Christophe; COCHELIN, Bruno; GROLET, Aurélien; KRACK, Malte (Springer International Publishing, 2019-06-29)

  In this work we apply and compare two numerical path continuation algorithms for solving algebraic equations arising when applying the Harmonic Balance Method to compute periodic regimes of nonlinear dynamical systems. The ...
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  ROTORCRAFT FITTED WITH AN ANTIVIBRATION SYSTEM , AND A METHOD OF ADJUSTING SUCH AN ANTIVIBRATION SYSTEM 

  MALBURET, François; HONNORAT, Olivier (2018)

  A rotorcraft having an antivibration system , the antivibration system being arranged at the interface between a fuselage of the rotorcraft and a casing of a main power transmission gearbox , or " MGB ” , in order to ...
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  On the frequency response computation of geometrically nonlinear flat structures using reduced-order finite element models 

  GIVOIS, Arthur; GROLET, Aurélien; THOMAS, Olivier; DEÜ, Jean-François (Springer Science and Business Media LLC, 2019-06-12)

  This paper presents a general methodology to compute nonlinear frequency responses of flat structures subjected to large amplitude transverse vibrations, within a finite element context. A reduced-order model (ROM)is ...
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  Governance maturity grid: a transition method for integrating sustainability into companies? 

  ALLAIS, Romain; ROUCOULES, Lionel; REYES, Tatiana (Journal of Cleaner Production, 2017)

  System innovation for sustainability requires innovation in corporate governance. Social, ecological, economic, territorial and governance dimensions of sustainability are explored and a set of sustainability principles ...

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