Co-optimization method for composite profile gear pump with installation size constraints
By introducing a tooth profile closure verification mechanism and a size penalty term into the optimization of the composite tooth profile gear pump, the problems of geometric pseudo-solution and size pseudo-optimization in the prior art are solved, realizing efficient collaborative optimization of the gear pump, ensuring the manufacturability and performance authenticity of the optimization results, and improving the accuracy of flow pulsation assessment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ANHUI UNIVERSITY OF ARCHITECTURE
- Filing Date
- 2026-06-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing optimization methods for composite gear pumps suffer from geometric pseudo-solutions, dimensional pseudo-optimizations, and distorted performance evaluation models. This results in optimization results that cannot be assembled into actual gear pump entities, and the assessment of flow pulsation is inaccurate, making it difficult to achieve effective synergistic optimization of displacement and pulsation.
An optimization algorithm is adopted, which combines a tooth profile closure verification mechanism and a size penalty term. The gear pump parameters are iteratively optimized by minimizing the objective function value to ensure effective geometric closure and the accuracy of performance evaluation. The flow pulsation assessment is based on the effect of helix angle filtering, and a size penalty is applied to limit the gear size from exceeding the housing limit.
The optimization results were made manufacturable and feasible, ensuring the meshing smoothness and volumetric sealing of the gear pump. The gear pump was made lightweight and had high power density, improving the accuracy of performance evaluation and the robustness of the algorithm, and solving the problem of algorithm non-convergence under extreme working conditions.
Smart Images
Figure CN122413618A_ABST