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Dynamic Behavior of a Brushless in Runner Motor
Département de Génie Mécanique, Energétique et Mines, Ecole Normale d’Enseignement Technique et Professionnel (ENETP), Bamako, République du Mali
Département de Génie Mécanique, Energétique et Mines, Ecole Normale d’Enseignement Technique et Professionnel (ENETP), Bamako, République du Mali
- 1 Département de Génie Mécanique, Energétique et Mines, Ecole Normale d’Enseignement Technique et Professionnel (ENETP), Bamako, République du Mali
- 2 Département de Génie Mécanique, Energétique et Mines, Ecole Normale d’Enseignement Technique et Professionnel (ENETP), Bamako, République du Mali
World Journal of Mechanics·Volume 13 (2023)·Pages 93–105·Published 30 April 2023·DOI10.4236/wjm.2023.134005
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Abstract
In this article, a model of a rotor with an asymmetric disk is presented in order to represent Campbell’s diagrams and instability maps as a function of the rotations of the support which can significantly change the dynamic behavior of the rotor. Critical rotating speeds can also lead to unacceptable levels of vibration. Indeed, the critical speeds are a function of the dynamic rigidity of the rotating systems and the presence of the gyroscopic forces creates a dependence between the rotating speed of rotation and the natural frequencies to such structures (the CAMPBELL diagrams): this implies that the correct determination of the critical speeds is one of the essential elements when sizing such dynamic systems.
KeywordsRotor DynamicsAsymmetric RotorParametric ExcitationFinite Element MethodUnbalance Response
- Lalanne, M. and Ferraris, G. (1998) Rotordynamics Prediction in Engineering. Wiley, Chichester.
- Genta, G. (2005) Dynamics of Rotating Systems. Springer, New York. https://doi.org/10.1007/0-387-28687-X
- Dufour, R. and Berlioz, A. (1998) Parametric Instability of a Beam Due to Axial Excitations and to Boundary Conditions. ASME Journal of Vibration and Acoustics, 120, 461-467. https://doi.org/10.1115/1.2893852
- Guilhen, P.M., Berthier, P., Ferraris, G. and Lalanne, M. (1988) Instability and Unbalance Response of Dissymmetric Rotor-Bearing Systems. ASME Journal of Vibration, Acoustics, Stress and Reliability in Design, 110, 288-294. https://doi.org/10.1115/1.3269515
- Kang, Y., Shih, Y.-P. and Lee, A.-C. (1992) Investigation on the Steady-State Responses of Asymmetric Rotors. ASME Journal of Vibration and Acoustics, 114, 194-208. https://doi.org/10.1115/1.2930249
- Beley-Sayettat, A. (1994) Effet des Dissymétries et Effet Sismique en Dynamique des Rotors. Thèse LMSt. INSA de Lyon, Lyon.
- Oncescu, F., Lakis, A.A. and Ostiguy, G. (2001) Investigation of the Stability and Steady State Response of Asymmetric Rotors, Using Finite Element Formulation. Journal of Sound and Vibration, 245, 303-328. https://doi.org/10.1006/jsvi.2001.3570
- Bachelet, L., Driot, N. and Ferraris, G. (2006) Comportement dynamique des rotors embarqués sous sollicitations aléatoires. XV Colloque Vibrations, Chocs et Bruits, Lyon, 14-16 June 2006.
- Duchemin, M. (2003) Contribution à l’étude du comportement dynamique d’un rotor embarqué. Ecole doctorale des sciences pour l’ingenieur de lyon, Lyon.
- Zaki Dakel, M. (2014) Stabilité et dynamique non linéaire de rotor embarqués. INSA de Lyon.
- Boukhalfa, A. (2009) Comportement vibratoire des arbres tournants en matériaux composites. Universite Abou Bekr Belkaid, Tlemcen.
- Guillaume, M. (2011) Identification et prévision du comportement dynamique des rotors feuilletés en flexion. INSA de Lyon.
- Medour, M. (2019) Dynamique de machines tournantes: 2ème Année Master, Construction Mecanique.