Abstract
A generalized finite element dynamic model of helical gear system considering time-varying mesh stiffness and loaded composite mesh error is developed. Bias modification is introduced into this mod...
Highlights
Due to higher contact ratio, larger load carrying capacity, lower vibration, and noise, helical gear transmission systems are widely used in many industry applications, such as automotive, wind turbine, mining, marine, and industrial power transmissions
The main motivation of this study is to investigate the effect of bias modification on loaded tooth contact characteristics of helical gears, obtain the optimal bias modification parameters quickly, and analyze the sensitivity of dynamic responses of helical gear system with bias modification to gear misalignment based on a more precise generalized finite element dynamic model of the system
The influence of optimal bias modification on quasistatic and dynamic behaviors of helical gear system and the sensitivity of vibration of the system with optimal bias modification to gear misalignment have been studied in this article
Summary
Due to higher contact ratio, larger load carrying capacity, lower vibration, and noise, helical gear transmission systems are widely used in many industry applications, such as automotive, wind turbine, mining, marine, and industrial power transmissions. The main motivation of this study is to investigate the effect of bias modification on loaded tooth contact characteristics of helical gears, obtain the optimal bias modification parameters quickly, and analyze the sensitivity of dynamic responses of helical gear system with bias modification to gear misalignment based on a more precise generalized finite element dynamic model of the system. After this introduction, the rest of this article is organized as follows: section ‘‘Bias modification and dynamic model’’ gives the design of bias modification for helical gears and the calculation method of corresponding time-varying mesh stiffness and loaded composite mesh error based on the improved loaded tooth contact analysis (LTCA) model. Considering the nonlinear relationship between local contact deformation and the applied force, the Hertzian contact deflection of interested contact point can be calculated by[27]
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