Nonlinear analysis of the friction-induced vibrations of a rotor-stator system
| Autor: | Jean-Frédéric Diebold, Abdelbasset Hamdi, Louis Jezequel, Sébastien Besset, Alexy Mercier |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
Acoustics and Ultrasonics Stator Plane (geometry) Rotor (electric) Mechanical Engineering 02 engineering and technology Mechanics Condensed Matter Physics Rotation 01 natural sciences law.invention Vibration Nonlinear system 020303 mechanical engineering & transports Amplitude 0203 mechanical engineering Mechanics of Materials law 0103 physical sciences Limit (music) 010301 acoustics |
| Zdroj: | Journal of Sound and Vibration. 443:483-501 |
| ISSN: | 0022-460X |
| DOI: | 10.1016/j.jsv.2018.12.005 |
| Popis: | In this paper, the vibratory dynamics of a system consists of a rotor and a stator with friction at the interface is studied. The main goal is to study how taking into account the deviation of the relative velocities associated with each point of the interface (rotor/stator) influences the model. The inclusion of this deviation, not usually modeled for this type of system, allows taking the friction plane into account. However, introducing this mechanism in a model with a friction interface leads to damping that in turn has an impact on the values and the convergence of the amplitudes of vibration. In addition, the deviation has a significant impact only when the rotation frequency of the rotating part is low. Thus this paper also focuses on the separation occurring at the interface. The method used to take this separation into account is presented. The addition of this separation in the model makes it possible to obtain more physically realistic limit cycles in the case of high rotation frequency. These two phenomena are combined in order to obtain physical amplitudes. |
| Databáze: | OpenAIRE |
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