高速涡轮泵动静压轴承新型长小孔节流器的试验建模

杨培基; 袁小阳; 苏卫民; 欧阳武

高速涡轮泵动静压轴承新型长小孔节流器的试验建模

1.
西安交通大学现代设计及转子轴承系统教育部重点试验室,西安 710049;
2.
北京航天动力研究所,北京 100076

基金项目:

国家自然科学基金项目(50875198)资助

详细信息

作者简介:
杨培基(1984-)，硕士研究生，研究方向为动静压轴承性能仿真,ypjhnyy@163.com;袁小阳(联系人)，教授，博士生导师，xyyuan@mail.xjtu.edu.cn

杨培基(1984-)，硕士研究生，研究方向为动静压轴承性能仿真,ypjhnyy@163.com;袁小阳(联系人)，教授，博士生导师，xyyuan@mail.xjtu.edu.cn

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出版历程
- 收稿日期: 2011-07-08
- 刊出日期: 2015-06-10

Experimental Modeling of New Long Orifice-type Restrictor of High Speed Turbine Hybrid Bearing

1.
Theory of Lubrication and Bearing Institute,Xi'an Jiaotong University,Xi'an 710049;
2.
Beijing Aerospace Propulsion Institute,Beijing 100076

摘要

摘要: 针对动静压轴承用小孔节流和毛细节流结构受应用空间尺寸限制问题,提出了一种尺寸介于两种典型节流器之间以满足涡轮泵空间要求的非典型长小孔节流结构,并对该结构进行了试验建模。通过分析动静压轴承小孔节流和毛细节流两种节流结构及流量数学模型,提出了一种与典型小孔节流器相近的长小孔节流器;给出了一种不直接利用整个轴承而利用孔板的试验建模可行方案,测量了节流孔长径比在4～10、压差1.5 MPa～5.5 MPa时力水润滑介质节流器的流量,得到了长小孔节流器的试验模型。研究结果表明:非典型结构的节流器需要试验建模,给出的非典型节流器流动规律近似于典型小孔模型,其节流模型大致属于紊流模型。
- 动静压轴承 /
- 小孔节流 /
- 长小孔节流 /
- 试验建模
Abstract: To solve the problem of space limit when orifice-type restrictor and capillary restrictor are applied to hybrid bearings,this paper proposed a kind of non-typical long orifice-type restrictor to satisfy the space of turbine,the size of which is between other two kinds of typical restrictors,and the experimental model was established for this structure.Through analyzing the two types of restrictor structures and flow rate mode,this paper proposed a long small orifice-type restrictor similar to a typical orifice-type restrictor;and a feasible experimental modeling method was proposed,which took use of orifice plate but not the whole bearing.The flow rate of water film restrictor was measured under the aspect ratio of 4~10 and the pressure difference of 1.5 MPa~5.5 MPa,and the experimental model of long orifice-type restrictor was achieved.The result shows that the restrictor of non-typical structures should be modeled by experiment,and the flow discipline of non-typical restrictor given by this paper is familiar with typical orifice-type restrictor,of which the throttling model is almost a turbulence model.
- hybrid bearing /
- throttle model /
- orifice-type restrictor /
- restrictor experimental model

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参考文献(8)

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