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EnglishBall screws have been investigated by several researchers from a theoretical point of view because the intrinsic complexity of experimental investigation of these mechanisms. Most of the models developed so far have been developed in quasi-static conditions ignoring inertia terms and time variability of operating conditions. A detailed multibody dynamic model of a double nut preloaded ball screw is presented in this paper, taking into account the full dynamic of each subcomponent as well as the mutual interactions. A 3D contact model is introduced, considering Hertzian normal contact and a simplified friction model based on grease lubrication. This model takes into account the time variability of the operating conditions and it is suitable to be used for prognostic and model-based design approaches. The results of dynamic simulations in presence of backlash are presented to highlight the model s capabilities.
Multibody dynamic model of a double nut preloaded ball screw mechanism with lubrication / Bertolino, A. C.; Mauro, S.; Jacazio, G.; Sorli, M.. - ELETTRONICO. - 7B(2020), pp. 1-11. ((Intervento presentato al convegno ASME 2020 International Mechanical Engineering Congress and Exposition, IMECE 2020 tenutosi a Portland, OR, USA nel November, 16-19, 2020.
| Titolo: | Multibody dynamic model of a double nut preloaded ball screw mechanism with lubrication | |
| Autori: | ||
| Data di pubblicazione: | 2020 | |
| Abstract: | Ball screws have been investigated by several researchers from a theoretical point of view becaus...e the intrinsic complexity of experimental investigation of these mechanisms. Most of the models developed so far have been developed in quasi-static conditions ignoring inertia terms and time variability of operating conditions. A detailed multibody dynamic model of a double nut preloaded ball screw is presented in this paper, taking into account the full dynamic of each subcomponent as well as the mutual interactions. A 3D contact model is introduced, considering Hertzian normal contact and a simplified friction model based on grease lubrication. This model takes into account the time variability of the operating conditions and it is suitable to be used for prognostic and model-based design approaches. The results of dynamic simulations in presence of backlash are presented to highlight the model s capabilities. | |
| ISBN: | 978-0-7918-8455-3 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| IMECE20 - 22094 revised.pdf | Articolo principale | 2a Post-print versione editoriale / Version of Record | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2875031
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