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| 指尖密封型线力学性能的有限元分析 | |
| 引用本文： | 陈国定,徐华,虞烈,肖育祥,周连杰.指尖密封型线力学性能的有限元分析[J].西北工业大学学报,2002,20(2):218-221. |
| 作者姓名： | 陈国定 徐华 虞烈 肖育祥 周连杰 |
| 作者单位： | 1. 西北工业大学,机电工程学院,陕西,西安,710072 2. 西安交通大学,轴承研究所,陕西,西安,710049 3. 中国燃气涡轮研究院,四川,成都,610500 |
| 基金项目： | 航空科学基金(01C53017)，教育部重点实验室基金(2000-123)，留学回国人员科研启动基金 |
| 摘 要： | 提出了可用于指尖密封结构的4种指尖型线，并给出了相应的型线坐标方程，在Ansys有限元分析软件的支持下，建立了4种型线的指尖密封结构有限元数学模型。进行了相应的分析计算，计算结果表明。在规定的参数条件下，抛物线螺线，阿基米德螺线和对数螺线3种型线的指尖密封结构较之渐开线型线的指尖密封结构具有更好的力学性能，这一研究对实际应用中指尖密封型线的选择以及指尖密封技术的深入研究均具有较大的意义。 |
| 关 键 词： | 指尖密封 型线 有限元 |
| 文章编号： | 1000-2758(2002)02-0218-04 |
| 修稿时间： | 2001年4月4日 |
On Selecting Proper Shape of Finger Seal |
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| Chen Guoding,Xu Hua,Yu Lie,Xiao Yuxiang,Zhou LianjieNorthwestern Polytechnical University,Xi'an ,Xi'an Jiaotong University,Xi'an , Chinese Gas Turbine Institute,Chengdu.On Selecting Proper Shape of Finger Seal[J].Journal of Northwestern Polytechnical University,2002,20(2):218-221. | |
| Authors: | Chen Guoding Xu Hua Yu Lie Xiao Yuxiang Zhou LianjieNorthwestern Polytechnical University Xi'an Xi'an Jiaotong University Xi'an Chinese Gas Turbine Institute Chengdu |
| Affiliation: | Chen Guoding,Xu Hua,Yu Lie,Xiao Yuxiang,Zhou LianjieNorthwestern Polytechnical University,Xi'an 710072,Xi'an Jiaotong University,Xi'an 710049, Chinese Gas Turbine Institute,Chengdu 610500 |
| Abstract: | One of the key technologies needed by next generation turbine engine is advanced seal technology. Finger seal is one promising advanced seal; its shape affects its fatigue strength and sealing quality. We studied four curves that define mainly four different shapes of finger seal; parabola, Archimedes' spiral, logarithm spiral, and evolute. We gave eqs. (1) through (5) as the coordinate equations of the above four curves. Then by means of Ansys FEM (finite element method) analytical software, we found four FEM mathematical models corresponding to the four curves that define finger seal configurations. We found by means of Ansys FEM analytical software that the stress levels for finger seal defined by parabola, Archimedes' spiral, and logarithm spiral are about the same but are much lower than that for finger seal defined by evolute. Lower stress levels indicate higher fatigue strength and better sealing quality. |
| Keywords: | finger seal FEM(finite element method) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |