Comprehensive study of a normal elastic contact in a satellite roller screws device under static loading
| Autor: | Abevi, F., Chaussumier, Michel, Daidié, Alain, Bouillot, F. |
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| Přispěvatelé: | Institut Clément Ader (ICA), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO), Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | 4th International Congress CMSM’2011, Sousse, Tunisia, May 30 – June 1 4th International Congress CMSM’2011, Sousse, Tunisia, May 30 – June 1, 2011, Sousse, Tunisia |
| Popis: | International audience; The loading rate in a satellite roller screws is possibly carried through multiple non-conformal contacts between the screw and the rollers in one side, and between the nut and the rollers in another one. The interacting surfaces are pseudo-toric (roller) and conical (screw or nut). Assuming a uniform distribution of the axial loading, the normal loading is calculated following the normal direction to the hertzian surfaces contact of the screw and the rollers. Thanks to the determination of the pressure distribution the in-depth stresses are calculated normally to the loading direction. This resolution takes use of the semi-numerical approach that leads to a set of linear equations solved by iterative means. It consists on the combination the conjugated gradient method and the accelerative technique known as Fast Fourier Transform (DC-FFT) to calculate cyclic convolutions. Thus, it appears that the pressure distribution follows a paraboloic law and that the contact area is circular. |
| Databáze: | OpenAIRE |
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