Nonlinear dynamics of non-orthogonal offset face gear-bearing transmission system

• Published in: International journal of non-linear mechanics 2023-10, Vol.155, p.104461, Article 104461
• Main Authors: Mo, Shuai, Huang, Zurui, Liu, Yiheng, Zhang, Wei
• Format: Article
• Language: English
• Subjects: Multi-scale; Non-orthogonal offset face gear; Nonlinear characteristics; Subharmonic and primary resonance
• ISSN: 0020-7462; 1878-5638
• DOI: 10.1016/j.ijnonlinmec.2023.104461

A nonlinear dynamic model of a non-orthogonal offset face gear-bearing transmission system is established, in which nonlinear factors such as input load fluctuation, gear clearance, bearing clearance, and transmission error are considered. The dynamic response of the system is analyzed by solving the differential equation with the numerical method. The subharmonic resonance and primary resonance characteristics of the torsional vibration displacement are analyzed by the multi-scale method. The results show that the change of meshing damping will make the system present rich nonlinear characteristics, and the equivalent static load and meshing damping ratio will affect the resonance characteristics of the system. Choosing the appropriate system parameters can make the system in a stable state and suppress the amplitude of primary resonance and subharmonic resonance. •The dynamic model of non-orthogonal offset face gear-bearing bending-torsion combination has been established.•Considering the nonlinear factors such as backlash, bearing clearance and comprehensive transmission error, the influence of system parameters on the nonlinear dynamic characteristics of gear transmission system has been studied.•The amplitude–frequency characteristics of the system are derived by using the multi-scale method, and the influence of parameter changes on the amplitude–frequency characteristics of primary resonance and subharmonic resonance has been analyzed.