Analysis of Dynamic Characteristics of Compound Planetary Transmission System Considering Manufacturing Errors
To investigate the impact of manufacturing errors on the dynamic characteristics of a compound planetary transmission system,the time-varying meshing stiffness of the system was obtained based on the potential energy method.Taking into account factors such as damping,time-varying meshing stiffness,and manufacturing eccentricity error,a translation-torsion coupling dynamic model of the transmission system was established using the centralized mass method.The Newmark-β the integration method solved the dy-namic response of the system,and analyzed the effects of single component manufacturing eccentricity error and multi component error coupling on the system meshing force,amplitude fluctuation of meshing force,and the floating trajectory of the solar wheel center.The analysis results indicate that the coupling effect of multi component errors will increase the range of meshing force fluctuations and the amplitude of lower or-der harmonics to some extent;The eccentricity error causes an upward trend in the amplitude fluctuation of the meshing force of the system,which is greatly affected by the error of the short planetary gear;The sim-ultaneous effect of double planet wheel errors exacerbates the floating of the solar wheel.
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