航空发动机篦齿封严环气弹稳定性

王文; 徐梅鹏; 赵柄锡; 孙丹; 孟光

doi:10.13224/j.cnki.jasp.20240455

航空发动机篦齿封严环气弹稳定性

doi: 10.13224/j.cnki.jasp.20240455

王文^1,,
徐梅鹏^1,*, ,,
赵柄锡¹,
孙丹²,
孟光³

1.
中国航发商用航空发动机有限责任公司，上海 200241
2.
沈阳航空航天大学航空发动机学院，沈阳 110015
3.
上海交通大学机械与动力工程学院，上海 200030

详细信息

作者简介:
王文（1983-），男，高级工程师，硕士，主要研究方向为结构振动与强度。E-mail：spinoza1983@126.com

通讯作者:
徐梅鹏（1993-），男，工程师，硕士，主要研究方向为结构振动与强度。E-mail：xump17@163.com

中图分类号: V232
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出版历程
- 收稿日期: 2024-07-05
- 网络出版日期: 2025-03-27

Aeroelasticity of labyrinth seal ring for aero-engine

WANG Wen^1
,,
XU Meipeng^{1,*
, ,},
ZHAO Bingxi¹,
SUN Dan²,
MENG Guang³

1.
Commercial Aircraft Engine Company Limited，Aero Engine Corporation of China，Shanghai 200241，China
2.
School of Aero-engine，Shenyang Aerospace University，Shenyang 110015，China
3.
School of Mechanical Engineering，Shanghai Jiao Tong University，Shanghai 200030，China

摘要

摘要:
基于涡轮机械叶片气弹稳定性数值计算的能量法，发展了1种求解篦齿封严环气弹稳定性问题的仿真方法。基于标准文献篦齿封严环几何参数，建立了篦齿封严气弹稳定性数值模型，分析了齿腔宽度、壁厚和封严间隙对气弹稳定性的影响。结果表明：通过能量法分析气弹稳定性仿真方法可准确计算篦齿封严环的气动阻尼比及失稳节径，为篦齿封严环气弹稳定性分析提供理论依据。齿腔宽度的增加会恶化气弹稳定性，且齿腔宽度对气弹稳定性的影响随压比增加而增大。壁厚和封严间隙的增加可改善气弹失稳。
- 篦齿封严环 /
- 气弹稳定性 /
- 能量法 /
- 气动阻尼比 /
- 节径
Abstract:
Based on the energy method for numerical calculation of aeroelastic stability of turbo-mechanical blades, a simulation method for solving the aeroelastic stability of labyrinth seal rings was developed. Based on the geometrical parameters of the grate tooth sealing ring in the standard literature, a numerical model of the aeroelastic stability was established, and the accuracy of the numerical model was verified. The effects of cavity width, wall thickness and sealing clearance on the aeroelastic stability were studied. The results showed that the calculation results of the aeroelastic stability of the labyrinth seal ring had the same instability nodal diameter and the same aeroelastic stability trend as the standard literature. Therefore, the accuracy of numerical method to solve the aeroelastic stability of labyrinth seal ring was verified. With the increase of the width of the tooth cavity, the aeroelastic stability was worsened, and the influence of the width of the tooth cavity on the aeroelastic stability increased with the pressure ratio. With the increase of wall thickness and sealing clearance, the aeroelastic instability was improved, and the influence of wall thickness and sealing clearance on the aeroelastic stability decreased with the pressure ratio.
- labyrinth seal ring /
- aeroelastic stability /
- energy method /
- aerodynamic damping ratio /
- pitch diameter

HTML

图 1 篦齿封严环几何模型

Figure 1. Geometric model of labyrinth seal ring

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图 2 网格无关性验证

Figure 2. Grid independence verification

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图 3 网格划分结果

Figure 3. Grid result

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图 4 不同节径固有频率

Figure 4. Natural frequencies under different nodal diameters

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图 5 模态振型

Figure 5. Modal shape

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图 6 不同压比下的泄漏系数

Figure 6. Leakage coefficient under different pressure ratios

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图 7 准确性验证

Figure 7. Verification of accuracy

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图 8 不同齿腔宽度篦齿封严环

Figure 8. Labyrinth seal ring with different cavity widths

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图 9 齿腔宽度对2节径气动阻尼比的影响

Figure 9. Effect of cavity width on aerodynamic damping ratio of 2nd nodal diameter

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图 10 不同壁厚篦齿封严环

Figure 10. Labyrinth seal ring with different wall thicknesses

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图 11 壁厚对2节径气动阻尼比的影响

Figure 11. Effect of wall thickness on aerodynamic damping ratio of 2nd nodal diameter

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图 12 不同封严间隙篦齿封严环

Figure 12. Labyrinth seal ring with different sealing clearances

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图 13 封严间隙对2节径气动阻尼比的影响

Figure 13. Effect of sealing clearance on aerodynamic damping ratio of 2nd nodal diameter

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表 1 篦齿封严环边界条件^[8]

Table 1. Labyrinth seal ring boundary conditions^[8]

工况参数数值

出口压力/MPa 0.10
参考压力 0
压比 1.40
进气温度/K 293.15
齿尖线速度/（m/s） 36.72

下载: 导出CSV

参考文献(22)

[1]	SU Guozheng, SUN Dan, LI Yu, et al. Aeroelastic stability of labyrinth seal ring under steady and dynamic total pressure intake distortion conditions[J]. Mechanical Systems and Signal Processing, 2023, 204: 110776. doi: 10.1016/j.ymssp.2023.110776
[2]	王小伟, 孙丹, 赵欢, 等. 预旋对阻旋栅密封泄漏特性与动力特性影响机理[J]. 航空动力学报, 2022, 37(2): 296-307. WANG Xiaowei, SUN Dan, ZHAO Huan, et al. Mechanism of influence of pre-swirl on leakage and rotordynamic characteristics of swirl brake seal[J]. Journal of Aerospace Power, 2022, 37(2): 296-307. (in Chinese WANG Xiaowei, SUN Dan, ZHAO Huan, et al. Mechanism of influence of pre-swirl on leakage and rotordynamic characteristics of swirl brake seal[J]. Journal of Aerospace Power, 2022, 37(2): 296-307. (in Chinese)
[3]	陈桂彬, 邹丛青, 杨超. 气动弹性设计基础[M]. 北京: 北京航空航天大学出版社, 2004. CHEN Guibin, ZOU Congqing, YANG Chao. Aeroelastic design basis [M]. Beijing: Beijing University of Aeronautics and Astronautics Press, 2004. (in Chinese CHEN Guibin, ZOU Congqing, YANG Chao. Aeroelastic design basis [M]. Beijing: Beijing University of Aeronautics and Astronautics Press, 2004. (in Chinese)
[4]	《航空发动机设计手册》编委会. 航空发动机设计手册: 第18册叶片轮盘及主轴强度分析[M]. 北京: 航空工业出版社, 2001. Editorial Board of “Aero-Engine Design Manual.” Aero-engine design manual: Volume 18 strength design of blade disc and spindle[M]. Beijing: Aviation Industry Press, 2001. (in Chinese Editorial Board of “Aero-Engine Design Manual.” Aero-engine design manual: Volume 18 strength design of blade disc and spindle[M]. Beijing: Aviation Industry Press, 2001. (in Chinese)
[5]	苏国征, 孙丹, 李玉, 等. 基于能量法的篦齿封严环气弹稳定性数值研究[J]. 推进技术, 2024, 45(5): 2304002. SU Guozheng, SUN Dan, LI Yu, et al. Numerical study on aeroelastic stability of labyrinth seal ring based on energy method[J]. Journal of Propulsion Technology, 2024, 45(5): 2304002. (in Chinese SU Guozheng, SUN Dan, LI Yu, et al. Numerical study on aeroelastic stability of labyrinth seal ring based on energy method[J]. Journal of Propulsion Technology, 2024, 45(5): 2304002. (in Chinese)
[6]	ALFORD J S. Protection of labyrinth seals from flexural vibration[J]. Journal of Engineering for Power, 1964, 86(2): 141-147.
[7]	SAYMA A I, BREARD C, VAHDATI M, et al. Aeroelasticity analysis of air-riding seals for aero-engine applications[J]. Journal of Tribology, 2002, 124(3): 607-616.
[8]	MIURA T, SAKAI N. Numerical and experimental studies of labyrinth seal aeroelastic instability[J]. Journal of Engineering for Gas Turbines and Power, 2019, 141(11): 111005.
[9]	SRINIVASAN A V, ARNOLDI R A, DENNIS A J. Aeroelastic instabilities in labyrinth air seal systems[R]. ASME Papaer 84-GT-169, 1984.
[10]	李辉, 李其汉, 晏砺堂. 篦齿式封严装置气动弹性稳定性研究[J]. 航空动力学报, 2002, 17(3): 344-348. LI Hui, LI Qihan, YAN Litang. Stability analysis of the labyrinth gas seals[J]. Journal of Aerospace Power, 2002, 17(3): 344-348. (in Chinese LI Hui, LI Qihan, YAN Litang. Stability analysis of the labyrinth gas seals[J]. Journal of Aerospace Power, 2002, 17(3): 344-348. (in Chinese)
[11]	李辉, 李其汉, 晏砺堂. 某实际发动机篦齿封严装置振动特性和稳定性分析[J]. 航空动力学报, 2003, 18(1): 130-133. LI Hui, LI Qihan, YAN Litang. Vibration character and aeroelastic stability analysis of real labyrinth gas seals[J]. Journal of Aerospace Power, 2003, 18(1): 130-133. (in Chinese LI Hui, LI Qihan, YAN Litang. Vibration character and aeroelastic stability analysis of real labyrinth gas seals[J]. Journal of Aerospace Power, 2003, 18(1): 130-133. (in Chinese)
[12]	李罡, 祝刚, 陈矛. 带阻尼套筒的篦齿封严结构气动弹性稳定性分析[J]. 机械强度, 2008, 30(2): 319-323. LI Gang, ZHU Gang, CHEN Mao. Aero-elastic stability analysis of labyrinth gas seals with damping sleeve[J]. Journal of Mechanical Strength, 2008, 30(2): 319-323. (in Chinese doi: 10.3321/j.issn:1001-9669.2008.02.028 LI Gang, ZHU Gang, CHEN Mao. Aero-elastic stability analysis of labyrinth gas seals with damping sleeve[J]. Journal of Mechanical Strength, 2008, 30(2): 319-323. (in Chinese) doi: 10.3321/j.issn:1001-9669.2008.02.028
[13]	ZHUANG Qingyuan. Parametric study on the aeroelastic stability of rotor seals[J]. Journal of the Global Power and Propulsion Society, 2019, 3: 569-579.
[14]	CORRAL R, VEGA A. Conceptual flutter analysis of labyrinth seals using analytical models: Part Ⅰ theoretical support[R]. ASME Paper GT2018-75958, 2018
[15]	PHIBEL R, DI MARE L, GREEN J S, et al. Numerical investigation of labyrinth seal aeroelastic stability[R]. ASME Paper GT2009-60017, 2009.
[16]	DI MARE L, IMREGUN M, GREEN J S, et al. A numerical study of labyrinth seal flutter[J]. Journal of Tribology, 2010, 132(2): 022201. doi: 10.1115/1.3204774
[17]	张明明, 李绍斌, 侯安平, 等. 叶轮机械叶片颤振研究的进展与评述[J]. 力学进展, 2011, 41(1): 26-38. ZHANG Mingming, LI Shaobin, HOU Anping, et al. Progress and review of research on blade flutter of turbomachinery[J]. Advances in Mechanics, 2011, 41(1): 26-38. (in Chinese ZHANG Mingming, LI Shaobin, HOU Anping, et al. Progress and review of research on blade flutter of turbomachinery[J]. Advances in Mechanics, 2011, 41(1): 26-38. (in Chinese)
[18]	张义民. 机械振动[M]. 北京: 清华大学出版社, 2007. ZHANG Yimin. Mechanical vibration[M]. Beijing: Tsinghua University Press, 2007. (in Chinese ZHANG Yimin. Mechanical vibration[M]. Beijing: Tsinghua University Press, 2007. (in Chinese)
[19]	孔繁余, 陈浩, 王婷, 等. 基于流固耦合的减压塔底泵泵体强度分析[J]. 机械工程学报, 2013, 49(2): 159-164. KONG Fanyu, CHEN Hao, WANG Ting, et al. Strength analysis of decompression tower bottom pump’s pump casing based on fluid-solid coupling[J]. Journal of Mechanical Engineering, 2013, 49(2): 159-164. (in Chinese KONG Fanyu, CHEN Hao, WANG Ting, et al. Strength analysis of decompression tower bottom pump’s pump casing based on fluid-solid coupling[J]. Journal of Mechanical Engineering, 2013, 49(2): 159-164. (in Chinese)
[20]	安德森. 计算流体力学基础及其应用[M]. 吴颂平, 刘赵淼, 译. 北京: 机械工业出版社, 2007: 13-17. ANDERSON J D. Fundamentals of computational fluid dynamics and its application[M]. WU Songping, LIU Zhomiao, translation. Beijing : Mechanical Industry Press, 2007: 13-17. (in Chinese ANDERSON J D. Fundamentals of computational fluid dynamics and its application[M]. WU Songping, LIU Zhomiao, translation. Beijing : Mechanical Industry Press, 2007: 13-17. (in Chinese)
[21]	王能茂, 王延荣, 田爱梅. 篦齿封严结构气弹稳定性数值分析[J]. 航空动力学报, 2018, 33(5): 1144-1150. WANG Nengmao, WANG Yanrong, TIAN Aimei. Numerical analysis for aeroelastic stability of labyrinth seals[J]. Journal of Aerospace Power, 2018, 33(5): 1144-1150. (in Chinese WANG Nengmao, WANG Yanrong, TIAN Aimei. Numerical analysis for aeroelastic stability of labyrinth seals[J]. Journal of Aerospace Power, 2018, 33(5): 1144-1150. (in Chinese)
[22]	WANG Nengmao, WANG Yanrong, TIAN Aimei. Influence of structure parameters on aeroelastic stability for labyrinth seal based on energy method[J]. Propulsion and Power Research, 2018, 7(4): 288-295. doi: 10.1016/j.jppr.2018.11.002