| Citation: | LAN Kexin, ZHAO Huan, SUN Dan, et al. Solving model of friction and wear characteristics of brush seal considering time-varying wear of brush wire[J]. Journal of Aerospace Power, 2025, 40（4）：20230399 doi: 10.13224/j.cnki.jasp.20230399
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Based on Euler-Bernoulli beam theory and Archard wear theory coupling method, a solution model of brush seal friction and wear characteristics considering time-varying wear of brush wire was proposed. The normal contact force, wear rate and wear loss between the free end of brush wire and the rotor surface were analyzed. The experimental device of brush seal friction and wear characteristics based on cylindrical circumferential friction was designed and built. On the basis of experimental verification of the accuracy of the solution model, the influences of working condition parameters and structural parameters of brush seal on the friction and wear characteristics of brush seal were studied. The results showed that the normal contact force and wear rate between the free end of the brush wire and the rotor surface decreased logarithmically with the increase of the friction time, and finally approached 0. The wear loss increased logarithmically with the increase of friction time, and finally became stable. When the rotation speed was
| [1] |
CHUPP R E,GHASRIPOOR F,TURNQUIST N A,et al. Advanced seals for industrial turbine applications: dynamic seal development[J]. Journal of Propulsion and Power,2002,18(6): 1260-1266. doi: 10.2514/2.6061
|
| [2] |
HILDEBRANDT M,SCHWITZKE C,BAUER H J. Experimental investigation on the influence of geometrical parameters on the frictional heat input and leakage performance of brush seals[J]. Journal of Engineering for Gas Turbines and Power,2019,141(4): 042504. doi: 10.1115/1.4038767
|
| [3] |
RABEN M,FRIEDRICHS J,FLEGLER J. Brush seal frictional heat generation-test rig design and validation under steam environment[J]. Journal of Engineering for Gas Turbines and Power,2017,139(3): 032502. doi: 10.1115/1.4034500
|
| [4] |
杜春华,吉洪湖,胡娅萍,等. 刷式封严磨损特性及其对泄漏影响的试验研究[J]. 推进技术,2017,38(11): 2597-2605. DU Chunhua,JI Honghu,HU Yaping,et al. Experimental investigation on wearing characteristics and effects on leakage of brush seal[J]. Journal of Propulsion Technology,2017,38(11): 2597-2605. (in Chinese
DU Chunhua, JI Honghu, HU Yaping, et al. Experimental investigation on wearing characteristics and effects on leakage of brush seal[J]. Journal of Propulsion Technology, 2017, 38(11): 2597-2605. (in Chinese)
|
| [5] |
徐乙人,祁志浩,李永健,等. 刷式密封高温摩擦磨损行为[J]. 中国表面工程,2022,35(3): 114-121. XU Yiren,QI Zhihao,LI Yongjian,et al. Friction and wear behaviors of brush seal under high temperature[J]. China Surface Engineering,2022,35(3): 114-121. (in Chinese
XU Yiren, QI Zhihao, LI Yongjian, et al. Friction and wear behaviors of brush seal under high temperature[J]. China Surface Engineering, 2022, 35(3): 114-121. (in Chinese)
|
| [6] |
徐乙人,祝天一,李永健,等. 钴基合金刷丝与碳化铬涂层高线速度磨损行为研究[J]. 摩擦学学报,2022,42(6): 1216-1225. XU Yiren,ZHU Tianyi,LI Yongjian,et al. Wear behavior of cobalt-based alloy brush bristles and chromium carbide coating under high line speed[J]. Tribology,2022,42(6): 1216-1225. (in Chinese
XU Yiren, ZHU Tianyi, LI Yongjian, et al. Wear behavior of cobalt-based alloy brush bristles and chromium carbide coating under high line speed[J]. Tribology, 2022, 42(6): 1216-1225. (in Chinese)
|
| [7] |
AKSIT M F,TICHY J A. Wear of brush seals: background and new modeling approach[J]. Tribology Transactions,1998,41(3): 368-374. doi: 10.1080/10402009808983760
|
| [8] |
STANGO R J,ZHAO H,SHIA C Y. Analysis of contact mechanics for rotor-bristle interference of brush seal[J]. Journal of Tribology,2003,125(2): 414-421. doi: 10.1115/1.1510879
|
| [9] |
DEMIROGLU M,GURSOY M,TICHY J A. An investigation of tip force characteristics of brush seals[R]. Montreal,Canada: ASME Turbo Expo 2007: Power for Land,Sea,and Air,2007.
|
| [10] |
CRUDGINGTON P,BOWSHER A,WALIA J,et al. Bristle angle effects on brush seal contact pressures[R]. AIAA-2009-5168,2009.
|
| [11] |
黄首清,索双富,李永健,等. 几何参数对刷式密封泄漏和刷丝尖端力的影响[J]. 航空动力学报,2016,31(1): 196-202. HUANG Shouqing,SUO Shuangfu,LI Yongjian,et al. Influences of geometric parameters on leakages and bristle tip forces in brush seals[J]. Journal of Aerospace Power,2016,31(1): 196-202. (in Chinese
HUANG Shouqing, SUO Shuangfu, LI Yongjian, et al. Influences of geometric parameters on leakages and bristle tip forces in brush seals[J]. Journal of Aerospace Power, 2016, 31(1): 196-202. (in Chinese)
|
| [12] |
陈春新,李军,丰镇平. 刷式密封刷丝束与转子接触力的数值研究[J]. 西安交通大学学报,2010,44(7): 23-27. CHEN Chunxin,LI Jun,FENG Zhenping. Numerical investigation into bristle-rotor contact force of brush seals[J]. Journal of Xi’an Jiaotong University,2010,44(7): 23-27. (in Chinese
CHEN Chunxin, LI Jun, FENG Zhenping. Numerical investigation into bristle-rotor contact force of brush seals[J]. Journal of Xi’an Jiaotong University, 2010, 44(7): 23-27. (in Chinese)
|
| [13] |
TIMOSHENKO S. 材料力学[M]. 汪麟,译. 北京: 科学出版社,1965.
|
| [14] |
徐芝纶. 弹性力学: 上册[M]. 5版. 北京: 高等教育出版社,2016.
|
| [15] |
PRIOR R,SHORT J,BASU P. Brush seal wear model[C]// 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. Cleveland,OH,U. S. A.: AIAA,1998: 3170.
|
| [16] |
FAN Jinjin,JI Honghu,WANG Qiang,et al. A combined theoretical and experimental study of wear model of brush seal[J]. Tribology International,2021,154: 106696. doi: 10.1016/j.triboint.2020.106696
|
| [17] |
袁玮. 刷式密封接触分析及磨损特性的研究[D]. 西安: 西北工业大学,2004. YUAN Wei. Brush seal contact analysis and wear characteristics research[D]. Xi’an: Northwestern Polytechnical University,2004. (in Chinese
YUAN Wei. Brush seal contact analysis and wear characteristics research[D]. Xi’an: Northwestern Polytechnical University, 2004. (in Chinese)
|
| [18] |
董书娜,杜春华,崔亚辉,等. 基于Archard模型的刷式密封单边磨损特性[J]. 航空动力学报,2020,35(7): 1437-1446. DONG Shuna,DU Chunhua,CUI Yahui,et al. Unilateral wear characteristics of brush seal based on Archard model[J]. Journal of Aerospace Power,2020,35(7): 1437-1446. (in Chinese
DONG Shuna, DU Chunhua, CUI Yahui, et al. Unilateral wear characteristics of brush seal based on Archard model[J]. Journal of Aerospace Power, 2020, 35(7): 1437-1446. (in Chinese)
|
| [19] |
DOGU Y,AKSIT M F. Brush seal temperature distribution analysis[J]. Journal of Engineering for Gas Turbines and Power,2006,128(3): 599-609. doi: 10.1115/1.2135817
|
| [20] |
黄首清,索双富,李永健,等. 刷式密封流场和温度场的3维数值计算[J]. 清华大学学报(自然科学版),2014,54(6): 805-810. HUANG Shouqing,SUO Shuangfu,LI Yongjian,et al. Numerical predictions of the flow and temperature distributions in a threedimensional brush seal model[J]. Journal of Tsinghua University (Science and Technology),2014,54(6): 805-810. (in Chinese
HUANG Shouqing, SUO Shuangfu, LI Yongjian, et al. Numerical predictions of the flow and temperature distributions in a threedimensional brush seal model[J]. Journal of Tsinghua University (Science and Technology), 2014, 54(6): 805-810. (in Chinese)
|
| [21] |
冯毓钟,赵欢,孙丹,等. 刷丝磨损对刷式密封泄漏流动特性影响数值与实验研究[J]. 航空动力学报,2022,37(6): 1234-1247. FENG Yuzhong,ZHAO Huan,SUN Dan,et al. Numerical and experimental research on influence of brush bristle wear on leakage and flow characteristics of brush seal[J]. Journal of Aerospace Power,2022,37(6): 1234-1247. (in Chinese
FENG Yuzhong, ZHAO Huan, SUN Dan, et al. Numerical and experimental research on influence of brush bristle wear on leakage and flow characteristics of brush seal[J]. Journal of Aerospace Power, 2022, 37(6): 1234-1247. (in Chinese)
|
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