Open AccessAnalysis of dynamic characteristics of power split spiral bevel gear transmission system based on teeth geometric contact analysis
Author(s) -
Dong Hao,
Zhiyu Liu,
Xiaolong Zhao,
Yahui Hu
Publication year - 2019
Publication title -
transactions of the canadian society for mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.273
H-Index - 20
eISSN - 2816-5691
pISSN - 0315-8977
DOI - 10.1139/tcsme-2017-0128
Subject(s) - spiral bevel gear , bevel gear , vibration , acceleration , stiffness , contact analysis , dynamic load testing , structural engineering , control theory (sociology) , power (physics) , spiral (railway) , engineering , mechanics , finite element method , acoustics , physics , computer science , mechanical engineering , classical mechanics , control (management) , quantum mechanics , artificial intelligence
To solve the dynamic load distribution mechanism of the power split transmission system of spiral bevel gears, according to the characteristics of the closed loop of power flow, the deformation coordination condition is deduced. Through the gear teeth geometric contact analysis technique, the time-varying meshing stiffness conditions in the model are solved. The linear time-varying dynamic model of the torsional vibration of the bevel gear split transmission system is established by the lumped mass parameter method. Considering the influence of time-varying mesh stiffness excitation conditions and damping, the dynamic differential equations are treated in a dimensionless way. The dynamic load change and dynamic response characteristics of the system are obtained by numerical solution, and the influence of parameters such as speed and damping on dynamic power flow and dynamic characteristics of the system is revealed. The results show that with an increase of meshing damping ratio, dynamic power flow of each gear pair changes little, and the vibration acceleration and its root mean square value of each gear pair of the system are smaller. With an increase in speed, vibration acceleration and its average amplitude increase.