Radial static pressure spindle performance optimization design method based on theoretical calculation and fluid simulation

By combining theoretical calculations and fluid simulations, the design method of radial hydrostatic spindles is optimized, solving the problems of low parameter matching efficiency and long optimization cycle in traditional design. This achieves high-precision and high-efficiency design optimization, which is suitable for ultra-precision machine tools and semiconductor manufacturing.

CN122263293APending Publication Date: 2026-06-23SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Filing Date
2026-03-10
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional radial hydrostatic spindle design methods rely on empirical formulas or single theoretical models, resulting in low parameter matching efficiency, large errors in load-bearing capacity and stiffness prediction, lack of simulation verification, insufficient design reliability, and long optimization cycles, making it difficult to meet the requirements of modern precision manufacturing.

Method used

By combining theoretical calculations with computational fluid dynamics simulations, closed-loop verification is performed by establishing mathematical models and three-dimensional fluid dynamics simulation models. The air film geometry parameters and throttling structure are optimized, and the theoretical model is modified to improve design accuracy and efficiency.

Benefits of technology

It significantly improves the design accuracy and efficiency of radial hydrostatic spindles, making them suitable for ultra-precision machine tools and semiconductor manufacturing, and achieving design optimization with high accuracy and high efficiency.

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Abstract

The application discloses a kind of based on theoretical calculation and fluid simulation radial static pressure spindle performance optimization design method, comprising the following steps: S1, establish the physical model of radial gas static pressure spindle gas film, and define gas film geometric parameter, throttling mode, load and boundary condition;S2, in combination with gas lubrication theory, based on Navier-Stokes equation and Reynolds equation mathematical model for describing radial static pressure spindle gas film pressure field and load capacity is established, and according to mathematical model calculation obtains theoretical pressure field and theoretical load capacity;S3, establish three-dimensional computational fluid dynamics simulation model and carry out simulation calculation, obtain simulation pressure field and simulation load capacity;S4, theoretical pressure field and theoretical load capacity are compared with simulation pressure field and simulation load capacity respectively, based on comparison result, correct mathematical model.The application innovatively combines theoretical calculation and CFD simulation calculation, solves the problem of low parameter matching efficiency and insufficient dynamic stability in traditional design.
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