The paper deals with the numerical analysis of thin gears. In particular, a brief overview of literature modeling techniques is reported in order to understand the best way for analyzing the dynamic behavior of gears. Then a multibody commercial software is used for implementing different complexity levels of models. The study starts with a simplified model that considers rigid the gears and concentrates the stiffness in the contact between teeth. The second, and more complex, model considers the stiffness in the contact and adds the compliance of the teeth. Stiffness of tooth is depicted as a rotational stiffness placed at the tooth root. Then, the third model increases the complexity, in fact the second model is complicated introducing the compliance of the gear body. In order to do that, a modal analysis of the gears is conducted and the synthetized modal shapes of the gears are introduced in the multibody model. The comparison highlights how the dynamic behavior of thin gears is really important in the meshing force estimation, in fact the transmission error becomes more irregular and the contact forces increase. As a second aspect, this analysis emphasizes the influence of the contact damping and the contact friction in the backlash phenomenon.

Modelling of Gear Meshing: a Numerical Approach for Dynamic Behavior Estimation of Thin Gears / Cura', Francesca Maria; Rosso, Carlo - In: Topics in Nonlinear Dynamics, Volume 1 / Kerschen, Gaetan; Adams, Douglas; Carrella, Alex. - STAMPA. - [s.l] : Springer, 2013. - ISBN 9781461465690. - pp. 319-334

Modelling of Gear Meshing: a Numerical Approach for Dynamic Behavior Estimation of Thin Gears

CURA', Francesca Maria;ROSSO, CARLO
2013

Abstract

The paper deals with the numerical analysis of thin gears. In particular, a brief overview of literature modeling techniques is reported in order to understand the best way for analyzing the dynamic behavior of gears. Then a multibody commercial software is used for implementing different complexity levels of models. The study starts with a simplified model that considers rigid the gears and concentrates the stiffness in the contact between teeth. The second, and more complex, model considers the stiffness in the contact and adds the compliance of the teeth. Stiffness of tooth is depicted as a rotational stiffness placed at the tooth root. Then, the third model increases the complexity, in fact the second model is complicated introducing the compliance of the gear body. In order to do that, a modal analysis of the gears is conducted and the synthetized modal shapes of the gears are introduced in the multibody model. The comparison highlights how the dynamic behavior of thin gears is really important in the meshing force estimation, in fact the transmission error becomes more irregular and the contact forces increase. As a second aspect, this analysis emphasizes the influence of the contact damping and the contact friction in the backlash phenomenon.
2013
9781461465690
Topics in Nonlinear Dynamics, Volume 1
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2510276
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo