Influence of friction on gear dynamics

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2006

Autores

Paulo Fernandes (Autor) Outra; José Dias Rodrigues (Autor) FEUP; Jorge Seabra (Autor) FEUP; Joaquim Sabino (Autor) Outra

Ata de Conferência Internacional

Título: Mechanics and materials in design

5th International Conference on Mechanics and Materials in Design (M2D'2006)

Porto, Portugal, July 24-26, 2006

Classificação Científica

FOS: Ciências da engenharia e tecnologias

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia mecânica

Outras Informações

Abstract (EN): Sliding friction between meshing teeth can be a very important of noise and vibration excitation source in geared systems. This study presents a single degree of freedom torsional model for a FZG type C single gear pair. Starting from a base dynamic model with time varying mesh stiffness as the only internal excitation, the influence of additional effects is gradually considered, namely, constant friction coefficients and time varying output torques. In particular, sliding friction is modeled as external and internal linear time varying excitation. On the other hand, time varying output torques are also considered as alternative of constant driven torque. The gear¿s rotational vibrations are calculated by Runge-Kutta method for different combinations of rational speeds, input torques and friction coefficients. The results indicate that dynamic transmission errors calculated from modeling the friction force as external and internal excitation are quite different, especially when contact point moves ahead of pitch point. However the influence of time variations on output torque is very reduced.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 21