Experiment investigation of throttle hole aerostatic bearing of micro turbine engine

HUANG Guo-ping; WANG Yue; LIANG De-wang

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Experiment investigation of throttle hole aerostatic bearing of micro turbine engine

更新时间：2026-07-07

- Experiment investigation of throttle hole aerostatic bearing of micro turbine engine
- Vol. 23, Issue 3, (2008)
- 作者机构：
  
  南京航空航天大学微型发动机研究所,210016
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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HUANG Guo-ping, WANG Yue, LIANG De-wang. Experiment investigation of throttle hole aerostatic bearing of micro turbine engine[J]. 2008, 23(3).
DOI：

HUANG Guo-ping, WANG Yue, LIANG De-wang. Experiment investigation of throttle hole aerostatic bearing of micro turbine engine[J]. 2008, 23(3). DOI：

摘要

对用于厘米级微型涡轮发动机的径向静压气浮轴承展开了实验研究

分析了长径比、节流孔径、气膜间隙及供气压力等对承载力、刚度和耗气量的影响.提出了这些设计参数的优选方法

并结合直径11 cm的某微型喷气发动机

给出了与之匹配的径向静压气浮轴承设计方案:工作面直径15 mm、长度17.5 mm、节流孔径0.35 mm、气膜间隙25μm.此方案在供气绝对压力2.5 kPa时

双轴承支撑能力为13.72 N

耗气量小于1.0 g/s

有效地满足了微型涡轮发动机要求.

Abstract

Miniature aerostatic journal air bearings used in Micro-turbine engine was studied by experiment in this paper

while the effects of ratio of length to diameter

orifice

clearance of journal air bearing and supply pressure on the characters of journal air bearing were analyzed.The optimum methods for selecting these parameters were presented.An aerostatic bearing for a micro turbine engine(diameter about 11 cm) was designed: diameter: 15 mm

length: 17.5 mm

orifice: 0.35 mm

and clearance: 30 μm.When the air feed pressure is 2.5 kPa

the bearing can load 13.72 N

and the air feed is less than1.0 g/s.The aerostatic bearing designed in this paper can meet the needs of 11 cm micro turbine engine.

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