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中国科学院, 长春光学精密机械与物理研究所, 吉林, 长春, 130022
收稿日期:2003-04-08,
修回日期:2003-07-09,
网络出版日期:2003-10-15,
纸质出版日期:2003-10-15
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张星祥, 任建岳. 负压吸附式环形气垫导轨的计算方法[J]. 光学精密工程, 2003,(5): 481-486
ZHANG Xing-xiang, REN Jian-yue. Method of calculating negative pressure-and-adsorption air cushion annular slide[J]. Editorial Office of Optics and Precision Engineering, 2003,(5): 481-486
根据负压吸附导轨的工作原理
利用流体力学的性质
系统地建立了导轨的承载能力和气膜厚度的数学模型
得出4个结构参数、气源气压与承载能力和气膜厚度的关系。最后通过实验证明了该导轨气膜厚度在1~3μm时
刚度稳定
最大变化量约为10%
且计算刚度与试验刚度的误差小于12%
能够适用于高精密器械的移动元件或承载元件。
Negative pressure adsorption slide is a new air static pressure slide widely used for high precision
high speed and light load applications. A systematical mathematic model has been established in the light of the operating principle
and hydromechanics load-carrying capacity and gas film thickness of the slide. Some conclusions are drawn on four structural parameters
gas source pressures
load-carrying capacity and gas thickness
and finally
the slide's performance was verified through experiments. When gas thickness varies in 1~3 μm
the load-carrying capacity is stable
maximal variation is about 10%
and the error between calculating stiffness and experimental stiffness is less than 12%. So
this slide can be used for mobile components or bearing components of precise appliances.
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