Aerostatically sealed chamber as a robust aerostatic bearing

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2022-09
Major/Subject
Mcode
Degree programme
Language
en
Pages
10
Series
Tribology International, Volume 173
Abstract
Aerostatic bearings are typically used in ultra precision and high speed applications in controlled environments. The present study expands this operating domain. The present study experimentally investigates the performance and feasibility of a novel design for a robust air bearing consisting of an aerostatically sealed pressurized volume. A suitable operating domain for the bearing system was characterized based on measurements of the load capacity, friction moment, chamber flow, and seal flow rate at various opposing surface run-outs and supply pressures. The highest measured load capacity was 18.86 kN at 0.330 mm run-out, and decreased to 12.22 kN load at 3.804 mm run-out. The study provided corroborative evidence on the feasibility of the proposed chamber based bearing design.
Description
Funding Information: This research was funded by the Academy of Finland as a part of the AI-ROT project (grant number 335717 ). The research was funded also by the 19ENG07 Met4Wind project, which has received funding from the EMPIR programme co-financed by the Participating States and from the European Union’s Horizon 2020 research and innovation programme. Additionally, the research was also funded by Aalto University . Funding Information: This research was funded by the Academy of Finland as a part of the AI-ROT project (grant number 335717). The research was funded also by the 19ENG07 Met4Wind project, which has received funding from the EMPIR programme co-financed by the Participating States and from the European Union's Horizon 2020 research and innovation programme. Additionally, the research was also funded by Aalto University. Publisher Copyright: © 2022 The Authors
Keywords
Aerostatic Bearing, Deflection compensation, Porous restrictor, Robust design
Other note
Citation
Miettinen, M, Vainio, V, Theska, R & Viitala, R 2022, ' Aerostatically sealed chamber as a robust aerostatic bearing ', Tribology International, vol. 173, 107614 . https://doi.org/10.1016/j.triboint.2022.107614