Results 51 to 60 of about 661 (213)
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
doaj +1 more source
Lubrication Science, EarlyView.ABSTRACT Porous gas bearings (PGBs) enable high‐speed, oil‐free operation in modern rotating machinery. This study develops a coupled thermo‐hydrodynamic (THD) model for a cylindrical porous gas bearing lubricated with four working fluids—air, R‐134a, helium and hydrogen.
S. Bechiri, B. Bouchehit, B. Bou‐Saïd
wiley +1 more source
Dynamic Analysis of Aerostatic Guideway and FEA Model Development [PDF]
, 2009 A dynamically optimal design is essential for a motion system to perform high speed operation without compromising its accuracy, settling time and vibration specification.
Lim, Chee Wang
core
Magneto-aerostatic bearing for miniature air turbine
, 2014 Under the circumstance of pursuing high speed and miniaturization, mini-type air turbines have been widely applied to high-speed dental handpieces in recent years.
Keng-Ning Chang, Kuang-Yuh Huang
core +1 more source
An Improved Air Film Model for Studying the Tilt Characteristics of Aerostatic Thrust Bearings
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT In this study, an improved mass‐spring model that treats the lubricating air film as distributed springs is proposed to calculate the static and dynamic angular stiffness of aerostatic thrust bearings. The proposed model refines the traditional mass‐spring model by introducing the spatially varying mechanical properties of the air film and the
Hui Zhuang, Jianguo Ding, Yu Chang
wiley +1 more source
Processing and fluid flow characteristics of hot isostatically pressed porous alumina for aerostatic bearing applications [PDF]
, 1996 Despite their well known superior load and stiffness characteristics, the wide-spread use of porous aerostatic bearings in preference to other bearing types has been hampered by difficulties in controlling the permeability of the porous material during
Kwan, Y. B. P
core
International Journal of Mechanical System Dynamics, Volume 5, Issue 2, Page 354-371, June 2025.ABSTRACT Ultra‐precision machining (UPM) has been extensively employed for the production of high‐end precision components. The process is highly precise, and the associated cost of production is also high. Optimization of machining parameters in UPM can significantly improve machining efficiency and surface roughness. This study proposes an innovative
Adeel Shehzad +5 more
wiley +1 more source
Applied Sciences, 2021 Active aerostatic bearings are capable of providing negative compliance, which can be successfully used to automatically compensate for deformation of the machine tool system in order to reduce the time and improve the quality of metalworking.
Vladimir Kodnyanko +6 more
doaj +1 more source
Analysis of Structural Characteristics of the HALE Joined‐Wing Configuration UAV
International Journal of Aerospace Engineering, Volume 2025, Issue 1, 2025.This study focuses on a high‐altitude long‐endurance (HALE) joined‐wing configuration UAV and completes a preliminary structural design based on aircraft design indices and the fundamental principles of aircraft structure design. Based on the preliminary structural design scheme and aerodynamic shape, a structural finite element model and a vortex ...
Junlei Sun +4 more
wiley +1 more source
International Journal of Energy Research, Volume 2024, Issue 1, 2024.The high‐efficiency turbine design is of great importance for small‐scale power systems with a high expansion pressure ratio (EPR). A two‐stage counter‐rotating impulse turbine is optional, with the advantages of a high efficiency and a compact size. However, few experimental investigations were reported.
Ningjian Peng +8 more
wiley +1 more source