Rongze Song

TL;DR: Considering the misalignment of gear root circle and base circle and accurate transition curve, an improved mesh stiffness model for a healthy gear pair is proposed and validated by the finite element method as mentioned in this paper.

TL;DR: Considering the effects of the extended tooth contact and tooth root crack on the time-varying mesh stiffness (TVMS), a finite element (FE) model of a spur gear pair in mesh is established by ANSYS software as mentioned in this paper.

TL;DR: In this paper, a finite element model of a spur gear pair in mesh is established by ANSYS software considering tip relief, and a time-varying mesh stiffness under different amounts of tip relief is calculated based on the tip relief.

TL;DR: Considering the misalignment of gear root circle and base circle and accurate transition curve, an improved mesh stiffness model for healthy gear is proposed, and it is validated by comparison with the finite element method as discussed by the authors.

TL;DR: In this article, a lumped mass model of a rotor-bearing-seal system considering the gyroscopic effect is established, where the graphite self-lubricating bearing and the sliding bearing are simulated by a spring-damping model and a nonlinear oil-film force model based on the assumption of short bearings, respectively.