Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Nonlinear simulation of transmission gears coupling considering the impact pair effect
Submission Author:
Nícolas Gass , SP
Co-Authors:
Nícolas Gass, Alberto Luiz Serpa
Presenter: Nícolas Gass
doi://10.26678/ABCM.COBEM2023.COB2023-2053
Abstract
This paper presents a methodology for evaluating the dynamic behavior of a geared transmission system. The main objective is to identify the sources of impulsive impacts that generate the clunk noise phenomenon and evaluate their effect on the torsional vibration of the system by using the "impact pair" model to describe its behavior. To achieve this goal, the "impact pair" response is obtained using the Newmark nonlinear method, which simulates the system's nonlinear behavior, considering the effect of nonlinearities in the system due to clearances, time-varying mesh stiffness, and impulsive impacts. The methodology is validated by comparing the results obtained with known commercial software integrators. Previous studies have emphasized the importance of analyzing the effects of transmission system parameters on its dynamic behavior. For instance, researchers have shown that the gears' pressure angle and helix angle play a critical role in reducing the vibration of the operating system. Additionally, the loading force on the transmission system can affect the nonlinearities behavior, and evaluating the minimum loading torque required to cause the clunk noise is also crucial. The significance of this research lies in the fact that the utilization of the "impact pair" model can provide a more accurate representation of the dynamic behavior of the transmission system, leading to critical insights for the design and optimization of transmission systems. The comprehension of the system's behavior and clunk noise phenomenon prediction may be improved by utilizing all the methods and factors cited before. In conclusion, the paper proposal involves representing the torsional vibration analysis of transmission systems, using the "impact pair" model, and considering the effect of nonlinearities in the system stiffness due to clearances and impulsive impacts, as well as the crucial role of the factors of the loading force and the parameters of each part of the system. The results obtained can be used to improve the safety, efficiency, and reliability of transmission systems, thus reducing the risk of failures.
Keywords
impact pair model, clunk noise, transmission nonlinearities, Dynamic response
