| 汽轮机特殊结构轴承稳态性能分析和试验研究 |
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| 引用本文： | 庞良坤,董勋. 汽轮机特殊结构轴承稳态性能分析和试验研究[J]. 上海交通大学学报, 1988, 0(4) |
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| 作者姓名： | 庞良坤 董勋 |
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| 作者单位： | 上海交通大学机械工程系(庞良坤)，上海交通大学机械工程系(董勋) |
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| 摘 要： | 本文对一种引进的特殊结构轴承进行了稳态性能研究。首先,建立了该轴承的数学模型,这一模型计及了偏心油楔油槽、瓦块惯性、轴颈轴向偏斜及紊流的影响;其次,采用二阶有限单元,求解了稳态数学模型并根据相似原理进行模拟试验,获得了稳态性能的计算和试验数据。
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| 关 键 词： | 压力参数 稳态性能 相似原理 可倾瓦轴承 |
A Theoretical and Experimental Investigation into the Steady Properties of Turbine Bearings with Special Structure |
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| Pang Liangkun Dong Xun. A Theoretical and Experimental Investigation into the Steady Properties of Turbine Bearings with Special Structure[J]. Journal of Shanghai Jiaotong University, 1988, 0(4) |
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| Authors: | Pang Liangkun Dong Xun |
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| Affiliation: | Pang Liangkun Dong Xun |
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| Abstract: | The steady properties of an imported bearing with special structure areinvestigated.A mathematical model is presented,which includes eccentric oilwedge,oil groove,pad inertia;axal misalignment and turbulent correctionfactors.Second-order finite element is employed to calculate the steady-statemodel and an experiment is made on a model bearing based on similarity theorem.Both calculation and experiment results are obtained.The findings of theinvestigation are that the bearing not only has a high stability as tilting-padbearings possess,but also could significantly reduce power loss and simplifydesign and manufacture.Instead of a four-pad bearing in turbines,the bearingcould save about 270 MWh per year. |
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| Keywords: | pressure parameter steady properties similarity theorem tilting-pad bearings |
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