Abstract
Abstract Aerostatic bearings are extensively used in precision machines. The dynamic performance of aerostatic bearings is limited by the inherent compromise between stiffness and damping. To enhance their performance, the bearing surface is made compliant to the pressure distribution, leading to high static stiffness. To investigate the damping characteristics of bearings with structural compliance, this work presents a dynamic model encapsulating the fluid-structure interaction. Experimental analysis validated the model and a sensitivity analysis established a design guideline ensuring high stiffness and positive damping. The findings reported an increase by a factor of three in stiffness compared to conventional bearing while ensuring a positive damping.
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