基于有限差分法对不同润滑介质下静压气体轴颈轴承性能研究
- 文件大小:714.33KB
- 浏览次数:
- 发布时间:2014-03-22
文件介绍:
本资料包含pdf文件1个,下载需要1积分
利用有限差分方法编写一套可以用于分析动静压气体轴承性能的计算程序,并通过已有算例和试验验证本程序计算结果的可靠性。对不同润滑介质下静压轴颈轴承气体消耗量进行研究发现,不同分子量润滑介质下气体消耗量随偏心率变化表现出不同的变化规律,小分子润滑介质下气体消耗量与偏心率成正比,而大分子润滑介质下气体消耗量与偏心率成反比,并且此规律与节流小孔类型无关,小孔节流轴颈轴承气体消耗量大于环面节流类型轴颈轴承。相同供气压力和偏心率情况下,小分子润滑介质小孔节流轴颈轴承承载能力比环面节流类型轴承承载能力小,大分子润滑介质下正好相反。本程序方法为后来对俄罗斯油―气混合低温氦透平膨胀机气体轴承端改造奠定了理论基础。 Based on finite difference method,an analytical program for the calculus of bearing's performance are developed,which can be used for hybrid gas bearing.The reliability of the results is validated by a classical case and the experiments.The change regularity of gas consumption in relation to eccentricity ratio for externally pressurized gas journal bearing under different molecule working gas is studied.The gas consumption is directly proportional to eccentricity ratio for small molecule working gas,on the contrary for large molecule working gas,and this basic law has nothing to do with the restrictor type.The gas consumption is generally larger in the case of a gas bearing with orifice restrictor as compared to gas bearing with inherent compensated restrictor.In the same supply pressure and eccentricity ratio,for small molecule working gas,the load of journal bearing with orifice restrictor is smaller than journal bearing with inherent compensated restrictor,while the bearing loads for large molecule working gas show a reverse trend.This research is a fundamental stage for the further improvement of gas bearing end in Russian oil-gas hybrid cryogenic helium turbo-expander.
文件列表
正在加载...请等待或刷新页面...
发表评论
更多..相关推荐
更多..最近更新
- 1视频多媒体会议设备连接CAD图
- 2阀inventor设计
- 3GB/T 8152.8-1987 铅精矿化学分析方法 二硫代二安替比林甲烷分光光度法测定铋量
- 4JGJ 3-2002 高层建筑混凝土结构技术规程
- 5tbt 1901-1999 车辆制动装置组装技术条件
- 6PCB计量测试机SolidWorks模型设计
- 73GZS1836直线振动筛基础图
- 8tb 10049-2004 铁路工程水文地质勘察规程
- 9塑料模具的完整装配图
- 10外观项目评分表
- 11NB/T 47003.2-2009 固体料仓
- 12GB_2900.55-2002_T_电工术语_带电作业
- 1382蚁上树V051114(含程序说明及测试文件)
- 14沥青路面施工质量检测技术课件
- 15北京某医院综合楼装修施工组织设计(鲁班奖)_secret