Dynamics of on-board rotors on finite-length journal bearings subject to multi-axial and multi-frequency excitations: numerical and experimental investigations

Autor: Régis Dufour, Franck Legrand, Marie-Ange Andrianoely, Sophie Baudin, Eric Chatelet, Yvon Briend

Publikováno v: Mechanics & Industry
Mechanics & Industry, EDP Sciences, 2021, 22, pp.35. ⟨10.1051/meca/2021034⟩
Mechanics & Industry, Vol 22, p 35 (2021)

International audience; On-board rotating machinery subject to multi-axial excitations is encountered in a wide variety of high-technology applications. Such excitations combined with mass unbalance forces play a considerable role in their integrity

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e0d257bd464b6e9da85969aab80580e
https://hal.archives-ouvertes.fr/hal-03241683/file/mi210006.pdf

Extended Modal Reduction for On-Board Rotor With Multifrequency Parametric Excitation

Autor: Sophie Baudin, Régis Dufour, Mzaki Dakel, Eric Chatelet, Yvon Briend, Marie Ange Andrianoely

Publikováno v: Journal of Vibration and Acoustics
Journal of Vibration and Acoustics, American Society of Mechanical Engineers, 2019, 141 (6), ⟨10.1115/1.4044381⟩

A new reduction method is proposed to investigate the behavior stability of rotor-bearing systems subject to a multifrequency rotational motion of their base. Combining the modal analysis and the construction of specific dynamic Ritz vectors, this me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48764350bd89ef0f9d375342e745aa92
https://hal.archives-ouvertes.fr/hal-02948835

Identification of real translational and rotational displacements of six-axial shakers with only six measured linear accelerations

Autor: Régis Dufour, Eric Chatelet, Yvon Briend, Franck Legrand, Sophie Baudin

Publikováno v: Mechanical Systems and Signal Processing. 154:107584

Qualification tests on the vibrations of on-board equipment depend on the ability of the shaker used to reproduce as precisely as possible the excitation profiles stipulated by standards, given that real operational conditions are generally multiaxia

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d98445e1a563210780110dbafddb6bfe
https://doi.org/10.1016/j.ymssp.2020.107584

Non-intrusive rattle noise detection in non-stationary conditions by an angle/time cyclostationary approach

Autor: Sophie Baudin, Olivier Sauvage, Jérôme Antoni, Didier Rémond

Publikováno v: Journal of Sound and Vibration
Journal of Sound and Vibration, Elsevier, 2016, 366, pp.501-513. ⟨10.1016/j.jsv.2015.11.044⟩

International audience; This work proposes an original non-intrusive approach to detect and quantify rattle noise in automotive gearboxes operating under non-stationary conditions by means of vibration or instantaneous angular speed measurements. Rat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d87da74f80eaa57c0427fc53950752b
https://hal.archives-ouvertes.fr/hal-01276664/file/BaudinS_RemondD_AntoniJ_EtAl_2016.pdf

Time-Angle Periodically Correlated Processes

Autor: Jérôme Antoni, Sophie Baudin, Dany Abboud

Publikováno v: Lecture Notes in Mechanical Engineering ISBN: 9783319041865

Cyclostationary processes have now become an essential mathematical representation of vibration and acoustical signals produced by rotating machines. However, to be applicable the approach requires the rotational speed of the machine to be constant,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::228fc459f777791155f3f98370921d0f
https://doi.org/10.1007/978-3-319-04187-2_1