TY - JOUR
AU - Zhang, Wei
AB - The power six-branch coaxial herringbone gear transmission system has the advantages of compact structure, high transmission efficiency, strong stability and adaptability. It is an important part of the ship's power transmission system. During its operation, the herringbone gears mesh with each other, and the tooth root bears alternating stress, which is easy to crack and affects the stability of the system. Therefore, exploring its fault dynamic characteristics can provide a basis for fault diagnosis during its operation. Firstly, the potential energy method is used to calculate the time-varying meshing stiffness of the gear under the crack fault state, and the bearing dynamic model is established to calculate the bearing support force. The fault dynamic model of the six-branch herringbone gear transmission system is established. The Runge–Kutta method is used to solve the nonlinear vibration equation of the system. The solution results are used to draw the bifurcation diagram, three-dimensional time-domain diagram, spatial phase diagram, frequency spectrum diagram and Poincare map of the system under different crack length faults. Subsequently, the cell mapping method is used to study the dynamic response evolution process of the system under different initial values. The results show that with the change of excitation frequency, the system will show rich nonlinear behavior. To ensure the stable operation of the system, the external excitation frequency should be selected reasonably. When the gear crack fault occurs, the stability of the system will be reduced.
TI - Fault dynamics of six-branch coaxial herringbone gear transmission system
JF - Nonlinear Dynamics
DO - 10.1007/s11071-024-10761-1
DA - 2025-05-01
UR - https://www.deepdyve.com/lp/springer-journals/fault-dynamics-of-six-branch-coaxial-herringbone-gear-transmission-tIn1vZHT6Y
SP - 9399
EP - 9432
VL - 113
IS - 9
DP - DeepDyve
ER -