Abstract
It is well known that the asymmetric gears of the transmission system enhances the load carrying capacity of system, but there is no relevant conclusion about the dynamic load-sharing characteristics of the asymmetric gear transmission system. In order to analyze the dynamic performance of an asymmetric gear system, taking two-stage asymmetric helical gear star drive system as the research object, the load-sharing model of the two-stage asymmetrical helical star gear system is established by the centralized mass method and Newton's second law. The load sharing characteristic of the star gear is studied about the floating member and the tooth profile pressure angle. The influence of eccentricity error, load and input speed on the load sharing performance of the system is analyzed. Based on ADAMS virtual prototype model, through the simulation analysis of the dynamic meshing force of gears, the load sharing coefficient of each star gear is calculated, compare the results with the MATLAB solution to verify the correctness of the theory.
Highlights
In 2011, Kamel et al [1] investigated the dynamic behavior of a two stage spur gear system used in a typical wind turbine
In 2012, Zhu et al [2] calculated of the load sharing coefficients of the internal and external meshing, and analyzed the impact of installation errors on the load sharing characteristic
We find that the research on the load sharing characteristics of asymmetric gear transmission systems is in the blank
Summary
In 2011, Kamel et al [1] investigated the dynamic behavior of a two stage spur gear system used in a typical wind turbine. In 2013, Wei et al [3] studied the effect of the meshing angle in bending-torsional coupling model on the load-sharing characteristic. In 2014, Wang et al [4] analyzed the influence of revolution speed and meshing error on dynamic load sharing characteristic in multiple-stage planetary gear model. In 2016, Mo et al [8], [9] proposed a new dynamic model for double-helical star gearing system, considering multiple errors and obtained the values and the vibration mode for different order. Mo et al [11] made mechanism analysis on load sharing behavior among star gears of star gearing reducer; Leque and Kahraman [12] developed the load sharing model to show combined errors influence on load sharing characteristic. The two-stage asymmetric helical gear star transmission system and load sharing characteristics are studied. The dynamic load generated by each component and the influence of error on load sharing performance are analyzed and a method is proposed to improve load sharing performance
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