一种基于几何误差分布概率的丝杠螺母副温度场分布获取方法
By constructing a model relating geometric error to contact angle and using the finite difference method, the problem that existing technologies cannot reflect the randomness of geometric error in the modeling of the temperature field of lead screw and nut pairs is solved, and a higher-precision solution for the temperature field distribution is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
- Filing Date
- 2023-07-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for modeling the temperature field of lead screw and nut pairs cannot accurately reflect the contact state between the balls and raceways, and they ignore the randomness of geometric errors, resulting in low model prediction accuracy.
By establishing a model relating geometric error to contact angle, the probability density function of geometric error of the ball and raceway is constructed. Combining the relationship between contact force and contact heat source, the temperature field distribution is solved using the finite difference method, thus reflecting the randomness of geometric error.
It improves the accuracy of temperature field modeling for lead screw and nut pairs, accurately reflects the differences in contact states, and provides higher accuracy in temperature field distribution.
Smart Images
Figure CN117113747B_ABST