| Citation: | WEN Shuaifang, HUANG Chanyuan, LAI Daogui, et al. Experimental study on leakage characteristics and structural optimization of combined elastic metal seal[J]. Journal of Aerospace Power, 2026, 41（6）：20240443 doi: 10.13224/j.cnki.jasp.20240443
|
In order to explore the related factors affecting the leakage characteristics of the combined elastic metal seal, the working principle and leakage characteristics of the combined elastic metal seal were theoretically analyzed, a combined elastic metal seal leakage characteristics experiment platform was designed and built to explore the factors affecting the leakage characteristics of the combined elastic metal seal, and the structure of the combined elastic metal seal was optimized according to the influencing factors. The optimized structure was further verified by experiments. The results showed that the leakage of the combined elastic metal seal increased with the increase of compression and chamber pressure. The calculation of engine characteristic curve showed that the internal flow field of the combined elastic metal seal changed obviously at the pressure ratio of 1.5—2.0, and gradually became stable after the pressure ratio of 2.0. Based on the experimental results of the original structure, the combined elastic metal seal structure can be optimized by improving the elastic potential energy of the elastic sheet and the gap between the pin and the U-shaped groove. The optimized structure was improved from the width of the elastic sheet, the thickness of the sealing sheet and the contact point between the pin and the U-shaped groove. The optimized leakage was reduced by 29.87% and the optimized effective flow area was reduced by 22.98% compared with the initial experimental results, indicating that the optimized combined elastic metal can significantly reduce the leakage and achieve better sealing effect.
| [1] |
JIANG Haitao, YU Shurong, WANG Shengshun, et al. Research status and development trend of cylindrical gas film seals for aeroengines[J]. Processes, 2024, 12(1): 69. doi: 10.3390/pr12010069
|
| [2] |
DONG Yuanyuan, LUO Ying, ZHANG Liping. Icone23-1353 numerical simulation of sealing behavior of c-ring for reactor pressure vessel[C]//The Proceedings of the International Conference on Nuclear Engineering (ICONE). Chiba: Japan Society of Mechanical Engineers, 2015: 1-6.
|
| [3] |
金冠男, 孙丹, 赵磊, 等. 弹性金属密封环力学特性与泄漏特性数值研究[J]. 润滑与密封, 2022, 47(7): 16-25. JIN Guannan, SUN Dan, ZHAO Lei, et al. Numerical investigation on mechanical and leakage characteristics of elastic metallic sealing ring[J]. Lubrication Engineering, 2022, 47(7): 16-25. (in Chinese doi: 10.3969/j.issn.0254-0150.2022.07.003
JIN Guannan, SUN Dan, ZHAO Lei, et al. Numerical investigation on mechanical and leakage characteristics of elastic metallic sealing ring[J]. Lubrication Engineering, 2022, 47(7): 16-25. (in Chinese) doi: 10.3969/j.issn.0254-0150.2022.07.003
|
| [4] |
QIAO Linan, KELLER C, ZENCKER U, et al. Three-dimensional finite element analysis of O-ring metal seals considering varying material properties and different seal diameters[J]. International Journal of Pressure Vessels and Piping, 2019, 176: 103953. doi: 10.1016/j.ijpvp.2019.103953
|
| [5] |
MA Yi, YUAN Ziyang, NI Yang, et al. Performance prediction and multi-objective optimization of metal seals in roller cone bits[J]. Journal of Petroleum Science and Engineering, 2022, 208: 109316. doi: 10.1016/j.petrol.2021.109316
|
| [6] |
姜薇, 李晨, 霍世慧, 等. 金属U-E密封结构重复使用性能数值分析[J]. 火箭推进, 2024, 50(1): 105-112. JIANG Wei, LI Chen, HUO Shihui, et al. Numerical analysis on reusable performance of metallic U-E rings[J]. Journal of Rocket Propulsion, 2024, 50(1): 105-112. (in Chinese doi: 10.3969/j.issn.1672-9374.2024.01.010
JIANG Wei, LI Chen, HUO Shihui, et al. Numerical analysis on reusable performance of metallic U-E rings[J]. Journal of Rocket Propulsion, 2024, 50(1): 105-112. (in Chinese) doi: 10.3969/j.issn.1672-9374.2024.01.010
|
| [7] |
张健. 安全阀金属密封及整定压力偏差致因研究[D]. 上海: 华东理工大学, 2018. ZHANG Jian. Metal to metal seal and set pressure variation of pressure relief valve[D]. Shanghai: East China University of Science and Technology, 2018. (in Chinese
ZHANG Jian. Metal to metal seal and set pressure variation of pressure relief valve[D]. Shanghai: East China University of Science and Technology, 2018. (in Chinese)
|
| [8] |
李建辉, 温帅方, 孙丹, 等. W形弹性金属密封泄漏特性研究与公式构造[J]. 航空动力学报, 2025, 40(8): 20230063. LI Jianhui, WEN Shuaifang, SUN Dan, et al. Leakage characteristics and formula construction of W-shaped elastic metal seals[J]. Journal of Aerospace Power, 2025, 40(8): 20230063. (in Chinese doi: 10.13224/j.cnki.jasp.20230063
LI Jianhui, WEN Shuaifang, SUN Dan, et al. Leakage characteristics and formula construction of W-shaped elastic metal seals[J]. Journal of Aerospace Power, 2025, 40(8): 20230063. (in Chinese) doi: 10.13224/j.cnki.jasp.20230063
|
| [9] |
黄婵媛, 温帅方, 孙丹, 等. 组合式弹性金属密封泄漏特性数值与实验研究[J]. 航空动力学报, 2025, 40(5): 20230484. HUANG Chanyuan, WEN Shuaifang, SUN Dan, et al. Numerical and experimental study on leakage characteristics of combined elastic metal seal[J]. Journal of Aerospace Power, 2025, 40(5): 20230484. (in Chinese doi: 10.13224/j.cnki.jasp.20230484
HUANG Chanyuan, WEN Shuaifang, SUN Dan, et al. Numerical and experimental study on leakage characteristics of combined elastic metal seal[J]. Journal of Aerospace Power, 2025, 40(5): 20230484. (in Chinese) doi: 10.13224/j.cnki.jasp.20230484
|
| [10] |
BLANTON P S, EBERL K R. Performance testing of spring energized C-Rings for use in radioactive material packagings containing tritium[C]//Proceedings of the 15th International Symposium on the Packaging Transportation of Radioactive Materials PATRAM. Miami: Institute of Nuclear Materials Management: 2007: 21-26.
|
| [11] |
SARAWATE N, WOLFE C, SEZER I, et al. Characterization of metallic W-seals for inner to outer shroud sealing in industrial gas turbines[C]//ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. Copenhagen, Denmark: American Society of Mechanical Engineers, 2013: 1855-1862.
|
| [12] |
HAN Ting, FAN Jianchun. Measurement and evaluation of metal-to-metal seals sealability by ultrasonic phased array[J]. Metals, 2023, 13(6): 1032. doi: 10.3390/met13061032
|
| [13] |
FISCHER F J, SCHMITZ K, TIWARI A, et al. Fluid leakage in metallic seals[J]. Tribology Letters, 2020, 68(4): 125. doi: 10.1007/s11249-020-01358-x
|
| [14] |
ZHANG Dawei, YANG Guangcan, LV Shichang, et al. Fretting behavior of static metal seal and testing apparatus for fretting friction with low/high temperature[J]. Tribology International, 2023, 187: 108676. doi: 10.1016/j.triboint.2023.108676
|
| [15] |
沙廉翔, 李双喜, 郑娆, 等. 油气两相柔性丝刷封密封性能优化分析及试验研究[J]. 推进技术, 2022, 43(11): 210448. SHA Lianxiang, LI Shuangxi, ZHENG Rao, et al. Optimization analysis and experimental research on sealing performance of oil-gas two-phase flexible bristle brush seal[J]. Journal of Propulsion Technology, 2022, 43(11): 210448. (in Chinese doi: 10.13675/j.cnki.tjjs.210448
SHA Lianxiang, LI Shuangxi, ZHENG Rao, et al. Optimization analysis and experimental research on sealing performance of oil-gas two-phase flexible bristle brush seal[J]. Journal of Propulsion Technology, 2022, 43(11): 210448. (in Chinese) doi: 10.13675/j.cnki.tjjs.210448
|
| [16] |
陆山, 李伦未. 航空发动机高负荷涡轮盘双辐板结构优化设计[J]. 推进技术, 2011, 32(5): 631-636. LU Shan, LI Lunwei. Twin-web structure optimization design for heavy duty turbine disk based for aero-engine[J]. Journal of Propulsion Technology, 2011, 32(5): 631-636. (in Chinese
LU Shan, LI Lunwei. Twin-web structure optimization design for heavy duty turbine disk based for aero-engine[J]. Journal of Propulsion Technology, 2011, 32(5): 631-636. (in Chinese)
|
| [17] |
陶焰明, 肖为, 罗莲军, 等. 基于神经网络的变截面再生冷却结构优化设计[J]. 推进技术, 2021, 42(5): 1112-1120. TAO Yanming, XIAO Wei, LUO Lianjun, et al. Structural optimal design of regenerative cooling with variable section based on neural network[J]. Journal of Propulsion Technology, 2021, 42(5): 1112-1120. (in Chinese doi: 10.13675/j.cnki.tjjs.190832
TAO Yanming, XIAO Wei, LUO Lianjun, et al. Structural optimal design of regenerative cooling with variable section based on neural network[J]. Journal of Propulsion Technology, 2021, 42(5): 1112-1120. (in Chinese) doi: 10.13675/j.cnki.tjjs.190832
|
| [18] |
KIM G H, HER N I, KIM H T. A design study on metal C-ring seals[J]. Vacuum, 2022, 205: 111401. doi: 10.1016/j.vacuum.2022.111401
|
| [19] |
王新月. 气体动力学基础[M]. 西安: 西北工业大学出版社, 2006. WANG Xinyue. Fundamentals of gas dynamics[M]. Xi’an: Northwestern Polytechnical University Press, 2006. (in Chinese
WANG Xinyue. Fundamentals of gas dynamics[M]. Xi’an: Northwestern Polytechnical University Press, 2006. (in Chinese)
|
DownLoad:
