Results 11 to 20 of about 215 (174)
Applied Sciences, 2023 Aerostatic bearings are considered crucial components that can improve the measurement accuracy of ground simulation tests of space equipment. A structural optimization design method is proposed to enhance the static performance of aerostatic bearings. A
Biqing Ye +3 more
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Lubricants, 2023 In the interest of analyzing the effect of the structural deformation root caused by gas pressure on the static features of aerostatic bearings, a fluid–structure interaction (FSI) model based on orifice-type aerostatic bearings is proposed that can ...
Yangong Wu +4 more
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Primary Gas Pressure Standard Passes Next Stress Test
Annalen der Physik, Volume 534, Issue 11, November 2022., 2022 With doubled sensitivity, the thermodynamic gas‐pressure standard based on temperature and electrical measurements as well as ab initio calculations of the thermophysical properties of helium is compared to the most accurate mechanical pressure standard. This stress test for theory and experiment is once again successful.
Christof Gaiser +2 more
wiley +1 more source
Lubricants, 2022 Aerostatic bearings are widely used in ultra-precision manufacturing equipment as a crucial support component. However, turbulent vortices in the recess can induce micro-vibration of the aerostatic bearing, which can severely affect stability. To further
Puliang Yu +4 more
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International Journal of Mechanical System Dynamics, Volume 2, Issue 3, Page 290-307, September 2022., 2022 Abstract The dynamics of an ultra‐precision machine tool determines the precision of the machined surface. This study aims to propose an effective method to model and analyze the dynamics of an ultra‐precision fly‐cutting machine tool. First, the dynamic model of the machine tool considering the deformations of the cutter head and the lathe head is ...
Hanjing Lu +6 more
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Air and atmosphere studies: Enlightenment, phenomenology and ecocriticism
Literature Compass, Volume 19, Issue 1-2, February 2022., 2022 Abstract This essay examines the treatment of air and atmosphere in literary scholarship of the late 17th‐ to mid‐19th‐century periods, from the first, early Enlightenment discovery of the air's chemical structure and the coining of the word ‘atmosphere’, to the dawning of Victorian industrial pollution.
Rowan Rose Boyson
wiley +1 more source
Advances in Mechanical Engineering, 2023 To solve the problems of a low gas supply pressure and low load capacity of traditional orifice-compensated aerostatic journal bearings (OCAJBs), this paper presents the design of a double-row gas supply micro-groove-orifice aerostatic journal bearing ...
Wei Cui +4 more
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Study on Static Characteristics of Annular Array Microporous Aerostatic Bearing
Shock and Vibration, Volume 2022, Issue 1, 2022., 2022 In this paper, an aerostatic bearing model in the form of microorifice annular array is designed to explore the static performance of aerostatic bearing when the orifice diameter and working air film thickness are of the same order of magnitude. Firstly, the simulation model of the new bearing is established, the pressure distribution of the bearing ...
Xiao-Long Zhao +4 more
wiley +1 more source
International Journal of Mechanical System Dynamics, Volume 1, Issue 1, Page 35-51, September 2021., 2021 Abstract As one of the most advanced and precise equipment in the world, a photolithography scanner is able to fabricate nanometer‐scale devices on a chip. To realize such a small dimension, the optical system is the fundamental, but the mechanical system often becomes the bottleneck. In the photolithography, the exposure is a dynamic process.
Yi Song +4 more
wiley +1 more source
Gas‐Lubricated Vibration‐Based Adhesion for Robotics
Advanced Intelligent Systems, Volume 3, Issue 7, July 2021., 2021 This work presents a new adhesion technique that uses a vibrating flexible disk to generate high adhesive stresses with low lateral resistance to movement, currently a challenge for mobile robots. The adhesive performance is measured for disks of different geometries and a mobile robot is built that can support payloads ≈10x its weight while driving on
William P. Weston-Dawkes +5 more
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