裂纹直齿轮啮合刚度评估方法、系统及存储介质和终端设备
By establishing accurate tooth root transition curves and involute tooth profile equations, and combining Hertzian contact theory and the finite element method, the problem of inaccurate evaluation of meshing stiffness in cracked spur gears with a large number of teeth was solved, enabling more accurate evaluation and fault diagnosis of complex gear systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NAVAL AVIATION UNIV OF THE PEOPLES LIBERATION ARMY QINGDAO CAMPUS
- Filing Date
- 2022-09-22
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the time-varying meshing stiffness assessment method is not accurate enough for cracked spur gears with a large number of teeth, resulting in inaccurate assessment results, especially for the meshing stiffness assessment of cracked spur gears with a large number of teeth.
By establishing accurate equations for the tooth root transition curve, the involute tooth profile starting circle radius, and the base circle radius, and combining Hertzian contact theory and the finite element method, the degree of reduction in the effective tooth thickness caused by cracks is calculated. The effective tooth thickness reduction line is determined according to different cases, and the bending stiffness, shear stiffness, and axial compressive stiffness are derived. The time-varying meshing stiffness of cracked spur gears is comprehensively evaluated.
It improves the accuracy of evaluating the meshing stiffness of cracked spur gears with a large number of teeth, provides a technical means for condition monitoring and fault diagnosis of complex mechanical gear transmission systems, and has good prospects for engineering applications.
Smart Images
Figure CN115510575B_ABST