[PDF][PDF] 气体悬浮电主轴动态特性研究进展

熊万里, 侯志泉, 吕浪, 阳雪兵 - 机械工程学报, 2011 - qikan.cmes.org
在高效超精密加工中, 气体悬浮电主轴存在电动机高速拖动能力衰减过快, 电磁偏心激振,
高次谐波激振和电动机定, 转子发热严重以及主轴高速带来的温度效应和气流惯性效应等一系列 …

CFD-based investigation and experimental study on the performances of novel back-flow channel aerostatic bearings

W Li, G Wang, K Feng, Y Zhang, P Wang - Tribology International, 2022 - Elsevier
Pocketed orifice-restricted aerostatic bearings (PORABs) are broadly used in ultraprecision
machining. Increasing the load capacity, stiffness and stability of PORABs is the continuing …

Pneumatic hammer in an externally pressurized orifice-compensated air journal bearing

HM Talukder, TB Stowell - Tribology International, 2003 - Elsevier
An experimental study was made of the occurrence of pneumatic hammer in an externally
pressurized air journal bearing having double plane admission. Various parameters …

Modeling for optimization of circular flat pad aerostatic bearing with a single central orifice-type restrictor based on CFD simulation

L Yifei, Y Yihui, Y Hong, L Xinen, M Jun, C Hailong - Tribology International, 2017 - Elsevier
For a circular flat pad aerostatic bearing with a single orifice-type restrictor, flow field in the
air film is numerically investigated. The formation process of sonic region and shock waves …

Numerical analysis and experimental investigation into the effects of manufacturing errors on the running accuracy of the aerostatic porous spindle

H Cui, Y Wang, X Yue, M Huang, W Wang, Z Jiang - Tribology International, 2018 - Elsevier
In ultra-precision machine tool, the running accuracy of aerostatic bearings has a great
influence on the machined surface topographies. However, the mechanism of aerostatic …

Numerical and experimental study on the novel active aerostatic bearings with the controllable throttling effect for obtaining high static stiffness

W Li, S Cai, P Zhang, Y Ping, K Feng - Mechanical Systems and Signal …, 2024 - Elsevier
Active compensation is an effective method to improve static and dynamic performances of
aerostatic bearings. However, the limited compensation bandwidth limits the development …

Form error in diamond turning

M Tauhiduzzaman, A Yip, SC Veldhuis - Precision Engineering, 2015 - Elsevier
The main feature of ultraprecision, single point diamond turning (SPDT) is its ability to
produce high quality surface finishes on the order of nanometers while meeting tight form …

[PDF][PDF] Review on the dynamic characteristics of aerostatic motorized spindles

熊万里, 侯志泉, 吕浪, 阳雪兵 - Journal of Mechanical …, 2011 - qikan.cmes.org
There are a series of technical problems in the application of the aerostatic motorized
spindle to meet the requirements of ultra-high speed and ultra-precision machining, such as …

Mathematical modeling on statics and dynamics of aerostatic thrust bearing with external combined throttling and elastic orifice fluid flow regulation

V Kodnyanko, S Shatokhin, A Kurzakov, Y Pikalov - Lubricants, 2020 - mdpi.com
As aerostatic bearings are used in high-speed metal-cutting machines to increase
machining accuracy, there is the need to improve their characteristics, including compliance …

Clarifications of the mechanism of nano-fluctuation of aerostatic thrust bearing with surface restriction

T Yoshimura, T Hanafusa, T Kitagawa, T Hirayama… - Tribology …, 2012 - Elsevier
Fluctuations of objects supported by aerostatic bearings are a severe problem for
ultraprecise positioning technology. The cause of small fluctuations, called nano-fluctuations …