Response analysis of 3D braided two-stage gear system excited by different frequency signals

Weiliang Zhang,Tengyuan Xue,Fengfeng Liu,Xiaomin Ji,Xinyao Tang,Xupeng Wang,Shuwei Liu

doi:10.1177/16878140211005197

Weiliang Zhang, Tengyuan Xue + Show 5 more

Open Access

https://doi.org/10.1177/16878140211005197

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Abstract

The knitting principle of 3D braided gear was studied, and the dynamic model of the two-stage gear system was established. The fourth-order Runge-Kutta method was used to numerically simulate the dynamic characteristics of common gear and 3D braided gear. The results showed that the fundamental frequency ω1 of the static transmission error excitation had the greatest effect on the speed and frequency characteristics of the first-stage gear along the meshing line. The research on frequency characteristics of common gear and 3D braided gear shows that the fundamental frequency ω1 of the static transmission error excitation has a large effect on the speed and frequency characteristics of the first-stage gear along the meshing line. With the reduction of the gear mass and moment of inertia, the amplitude in the low-frequency band increases. The vibration resonance of the system is studied by defining the amplitude gain of the response of the system output at the low-frequency signal ω3. The results show that with the reduction of gear mass and moment of inertia, when the input stage torque fluctuation frequency is Ω > 5, the fluctuation of amplitude gain Q disappears, which indicates that the vibration resistance of the 3D braided gear to high-frequency input stage torque fluctuation frequency is greatly improved.

Highlights

Textile composite material is a kind of composite material formed by weaving fiber bundles into the required structural shapes of parts by using textile technology, and impregnating and curing them by using resin film infiltration and other processes
The first-stage excitation fundamental frequency v1, input signal fluctuation frequency O, first-stage time-varying stiffness fundamental frequency v11, on the first-stage gear along the line of action have a great influence on the direction of the velocity amplitude frequency characteristic curve, with the decrease of gear mass, the amplitude increases
It is found that the first-stage excitation fundamental frequency v1, the input signal fluctuation frequency O and the first-stage time-varying stiffness fundamental frequency v11 have great influence on the speed and frequency characteristics of the first-stage gear along the meshing line

Summary

Introduction

Textile composite material is a kind of composite material formed by weaving fiber bundles into the required structural shapes of parts by using textile technology, and impregnating and curing them by using resin film infiltration and other processes. The first-stage excitation fundamental frequency v1, input signal fluctuation frequency O, first-stage time-varying stiffness fundamental frequency v11, on the first-stage gear along the line of action have a great influence on the direction of the velocity amplitude frequency characteristic curve, with the decrease of gear mass, the amplitude increases.

Results

Conclusion