Investigation on the fluid–structure interaction effect of an aerostatic spindle and the influence of structural dimensions on its performance

The performances of aerostatic spindle are highly affected by the fluid–structure interaction between air film and solid structure. This paper proposes a comprehensive two-way fluid–structure interaction model to analyze the fluid–structure interaction effect of an aerostatic spindle. The structure deformation induced by air film pressure is considered to predict the actual performance of aerostatic spindle. Furthermore, to provide theoretical basis for the structure parameters design, the influence of structural dimensions (such as the thickness of thrust plate) on its performance is investigated, and optimal structural parameters are acquired. The stiffness of aerostatic spindle with varying thrust plate thickness is tested to verify the reliability of simulation results.

[1]  Xuedong Chen,et al.  The effect of the recess shape on performance analysis of the gas-lubricated bearing in optical lithography , 2006 .

[2]  Han Ding,et al.  Influences of the geometrical parameters of aerostatic thrust bearing with pocketed orifice -type restrictor on its performance , 2007 .

[3]  Z-S Liu,et al.  Performance analysis of rotating externally pressurized air bearings , 2009 .

[4]  Yung-Sheng Chen,et al.  Influences of operational conditions and geometric parameters on the stiffness of aerostatic journal bearings , 2010 .

[5]  Christian Brecher,et al.  Machine tool spindle units , 2010 .

[6]  M. T. Neves,et al.  Discharge coefficient influence on the performance of aerostatic journal bearings , 2010 .

[7]  Hendrik Van Brussel,et al.  A multiphysics model for optimizing the design of active aerostatic thrust bearings , 2010 .

[8]  Terenziano Raparelli,et al.  Comparison between grooved and plane aerostatic thrust bearings: static performance , 2011 .

[9]  Kai Cheng,et al.  Dynamics Design and Analysis of Direct-Drive Aerostatic Slideways in a Multi-Physics Simulation Environment , 2013 .

[10]  Yeau-Ren Jeng,et al.  Comparison between the effects of single-pad and double-pad aerostatic bearings with pocketed orifices on bearing stiffness , 2013 .

[11]  Suet To,et al.  Improvement on load performance of externally pressurized gas journal bearings by opening pressure-equalizing grooves , 2014 .

[12]  Yeau-Ren Jeng,et al.  Discharge Coefficients in Aerostatic Bearings With Inherent Orifice-Type Restrictors , 2015 .

[13]  Kai Cheng,et al.  CFD based investigation on influence of orifice chamber shapes for the design of aerostatic thrust bearings at ultra-high speed spindles , 2015 .

[14]  Terenziano Raparelli,et al.  CFD Analysis of a Simple Orifice-Type Feeding System for Aerostatic Bearings , 2015, Tribology Letters.

[15]  R. Bennewitz,et al.  Mechanisms of Friction and Wear Reduction by Carbon Fiber Reinforcement of PEEK , 2015, Tribology Letters.

[16]  Kai Cheng,et al.  Multiphysics-based design and analysis of the high-speed aerostatic spindle with application to micro-milling , 2016 .

[17]  Bin Wu,et al.  Optimal design of an aerostatic spindle based on fluid–structure interaction method and its verification , 2016 .

[18]  Wanqun Chen,et al.  Aerostatic thrust bearing performances analysis considering the fluid-structure coupling effect , 2016 .