Dynamic modal analysis of double-sided meshing nutation drive with double circular arc spiral bevel gears

Lin, Zheng; Yao, Ligang; Xie, Zhiyu

In order to reduce the vibration of the double-sided meshing nutation drive with double circular arc spiral bevel gears, the dynamic modal of the nutation system is analyzed. The bending-torsional-axial coupling nonlinear dynamic model of the double-sided meshing nutation drive system with time-varying meshing stiffness, meshing damping, transmission error and tooth backlash is established, and the equation of motion of the system is derived. The natural frequencies and corresponding modal modes of the nutation system are calculated, and the effects of the average meshing stiffness of gears and the bearing support stiffness of nutation gears on the modal of the system are analyzed. The modal analysis of double circular arc spiral bevel gears is carried out, and the ten order natural frequencies and their corresponding modes are obtained. The results show that the nutation drive system and the double circular arc spiral bevel gears do not resonate during transmission.

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Lin, Zheng / Yao, Ligang / Xie, Zhiyu: Dynamic modal analysis of double-sided meshing nutation drive with double circular arc spiral bevel gears. 2020. Copernicus Publications.

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