Amethod for solving the contact problem in a generic helical gear pair (either external or internal) is described. Gear profiles are obtained by means of numerical simulation of the cutting process and an accurate description is provided in terms of NURBS curves or surfaces. The minimum number of parameters needed to describe accurately the profile in presence of tip and root reliefs, helix modification and crowning is discussed. A reference structured grid is defined on the tooth, then refinement criteria are discussed in order to obtain accurate solutions in terms of tooth deflection, contact pressure and fillet stress. A comparison with other approaches is given.

Adaptive Grid-Size Modelling of Helical Gear Pairs / Barbieri, Marco; Zippo, Antonio; Pellicano, Francesco. - ELETTRONICO. - (2011), pp. 1-5. ((Intervento presentato al convegno IFToMM - The 13th World Congress in Mechanism and Machine Science tenutosi a Guanajuato nel 19-23/06/2011.

Adaptive Grid-Size Modelling of Helical Gear Pairs

BARBIERI, MARCO;ZIPPO, Antonio;PELLICANO, Francesco
2011

Abstract

Amethod for solving the contact problem in a generic helical gear pair (either external or internal) is described. Gear profiles are obtained by means of numerical simulation of the cutting process and an accurate description is provided in terms of NURBS curves or surfaces. The minimum number of parameters needed to describe accurately the profile in presence of tip and root reliefs, helix modification and crowning is discussed. A reference structured grid is defined on the tooth, then refinement criteria are discussed in order to obtain accurate solutions in terms of tooth deflection, contact pressure and fillet stress. A comparison with other approaches is given.
IFToMM - The 13th World Congress in Mechanism and Machine Science
Guanajuato
19-23/06/2011
1
5
Barbieri, Marco; Zippo, Antonio; Pellicano, Francesco
Adaptive Grid-Size Modelling of Helical Gear Pairs / Barbieri, Marco; Zippo, Antonio; Pellicano, Francesco. - ELETTRONICO. - (2011), pp. 1-5. ((Intervento presentato al convegno IFToMM - The 13th World Congress in Mechanism and Machine Science tenutosi a Guanajuato nel 19-23/06/2011.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/906689
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