YI Yuanyuan,XUAN Liang,MENG Lijun,et al.Influence of operating load on meshing vibration of gear pairs[J].Journal of Mechanical Transmission,XXXX,XX(XX):1-6.
YI Yuanyuan,XUAN Liang,MENG Lijun,et al.Influence of operating load on meshing vibration of gear pairs[J].Journal of Mechanical Transmission,XXXX,XX(XX):1-6.DOI:
Influence of operating load on meshing vibration of gear pairs
Gear transmission systems often operate under varying loads and even extreme heavy-duty conditions
where their dynamic behavior significantly deviates from the design specifications
potentially leading to abnormal vibrations as well as faults such as tooth surface wear and gear tooth fracture. To investigate the influence and underlying mechanisms of operating load on the dynamic behavior of gear transmissions
the meshing state and vibration characteristics of gear pairs under different loads was studied.
Methods
2
Taking a spur gear pair as the research object
the time-varying meshing stiffness characterizing the gear engagement state under different loads was analytically calculated using the contact analysis function of KISSssoft software. A torsional vibration model of the gear pair incorporating manufacturing errors and backlash was introduced
and the modal characteristics and vibration response of the system under different loads were numerically solved.
Results
2
The results indicate that the gear meshing exhibits a heavy-load hardening effect. With the increase in load
the meshing stiffness
contact ratio
natural frequency
and resonant rotational speed all increase nonlinearly
while the growth rates exhibit a gradual saturation trend. Furthermore
heavier loads amplify the modulation effect of manufacturing errors on the system response.
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