Relationship between dynamic characteristics of air film of aerostatic spindle and mid-frequency of surface topography

Chen, Dong-Ju; Li, Shu-Pei; Zhang, Xuan; Fan, Jinwei

doi:10.1007/s40436-022-00391-4

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…Song et al 10 developed a five-degree-of-freedom model for aerostatic spindles considering modified flow coefficients for high-speed conditions and gave optimal air film thicknesses for thrust and radial air bearings. Chen et al 11 demonstrated that air film fluctuations in ultra-precision fly-cutting machine tools considerably affect the dynamic characteristics of the aerostatic spindle and, consequently, the workpiece surface corrugation. Chen et al 12 proposed a dynamic modelling method that takes into account the pressure distribution in the bearing by integrating the flow equilibrium principle and finite-element theory, which establishes a direct correlation between the liquid film's characteristics and the dynamic performance of the spindle.…”

Section: Introductionmentioning

confidence: 99%

Integrated design and analysis of a high-precision aerostatic spindle for internal grinding machines and its implementation perspectives

Cheng

Bai

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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Aerostatic spindles are commonly employed in ultra-precision machines. The aerostatic spindle, as a critical key component for the development of industrial ultra-precision grinding machines, requires an industrial feasible precision engineering approach to robust design and optimization in order to render the high-precision spindle system. This paper presents such an approach to the design and development of aerostatic spindles and the associated digital virtual spindle systems based on multiscale modelling and analysis. Multiscale modelling and analysis combined with the virtual spindle simulation are used as the kernel of the virtual spindle system, including innovative design on the spindle system structure, fluid dynamics modelling, drive and control system, and the integration of the spindle electromechanical system, which can be used to systematically model and simulate both the static and dynamic performances of the aerostatic spindle system. Experiments are carried out to evaluate and validate the above approach and the virtual spindle simulations, which can be further utilized for the development of next-generation high-precision aerostatic spindle systems.

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Section: Introductionmentioning

confidence: 99%