| 结构及工况对人字型指尖气浮密封的性能影响 |
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| 引用本文： | 申晓龙,陈国定,苏华.结构及工况对人字型指尖气浮密封的性能影响[J].航空动力学报,2011,26(2):416-421. |
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| 作者姓名： | 申晓龙 陈国定 苏华 |
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| 作者单位： | 西北工业大学,机电学院,西安,710072 |
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| 基金项目： | 陕西省自然科学基金，国家自然科学基金，高等学校博士学科点专项科研基金 |
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| 摘 要： | 在对人字型指尖气浮密封工作条件下激励形式分析及处理的基础上,建立了人字型指尖气浮密封系统的分析模型,并得到了人字型指尖气浮密封系统的动态泄漏率和动态气膜承载力的计算方法.以实际算例分析了人字型槽不同结构参数和工况参数对密封性能的影响规律.结果表明:人字型槽的各结构参数对密封的性能都有影响,其中,螺旋角的变化对密封性能的...
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| 关 键 词： | 人字型槽 指尖气浮密封 螺旋角 泄漏率 气膜承载力 |
| 收稿时间： | 2009/12/28 0:00:00 |
| 修稿时间： | 2010/6/28 0:00:00 |
Sealing performances analysis for a herringbone-grooved finger gas seal structure and working parameter |
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| SHEN Xiao-long,CHEN Guo-ding and SU Hua.Sealing performances analysis for a herringbone-grooved finger gas seal structure and working parameter[J].Journal of Aerospace Power,2011,26(2):416-421. |
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| Authors: | SHEN Xiao-long CHEN Guo-ding and SU Hua |
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| Institution: | (School of Mechanical Engineering, Northwestern Polytechnical University,Xi’an 710072,China) |
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| Abstract: | An analysis model of a herringbone-grooved finger gas seal system was presented for its structure and working parameter.The dynamic leakage and dynamic load capacity were subsequently calculated.With this model,analysis and calculation were performed with the change of different herringbone-grooved parameters and working conditions for the sealing performance of the seal.The calculated results indicate that the sealing performance is straightly affected by herringbone-grooved parameters.Rotor speed and windage have different influences on the leakage and load capacity.The above results are validated by comparing with the test data in references,thus providing a better basis for design of the seal. |
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| Keywords: | herringbone-groove finger gas seal helix angle leakage load capacity |
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