一种考虑箱体柔性的裂纹故障直齿轮系统动力学特性分析方法
By establishing a dynamic model of the gear transmission system that takes into account the flexibility of the gear housing, the problem of neglecting the influence of gear housing parameters in the existing technology is solved, and more accurate vibration analysis and fault simulation of the gear system are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NORTHEASTERN UNIV CHINA
- Filing Date
- 2023-10-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies neglect or make simple assumptions about gearbox parameters in gear system dynamics modeling, which makes it impossible to accurately simulate the impact of the gearbox on system vibration and to effectively analyze gear crack faults.
By fitting and correcting the crack path assumption method, combined with the tooth bearing contact analysis, a parametric model is established to solve for the time-varying meshing stiffness and transmission error. The finite element method and substructure method are used to establish a dynamic simulation model of the gear transmission system considering the housing flexibility.
It can more accurately simulate the actual contact characteristics of gear systems, provide a more accurate dynamic simulation model of gear systems with cracked faults, and improve the simulation accuracy of vibration response.
Smart Images
Figure CN117454701B_ABST