端封开口角度对挤压油膜阻尼器影响试验

陈亚龙; 马会防; 黄延忠; 张广辉

doi:10.13224/j.cnki.jasp.20220117

端封开口角度对挤压油膜阻尼器影响试验

doi: 10.13224/j.cnki.jasp.20220117

1.
中国航发商用航空发动机有限责任公司，上海 200241
2.
哈尔滨工业大学能源科学与工程学院，哈尔滨 150001

详细信息

作者简介:
陈亚龙（1985−），男，正高级工程师，硕士，从事航空发动机强度设计与试验工作

中图分类号: V216.2⁺1；TK14
计量
- 文章访问数: 80
- HTML浏览量: 24
- PDF量: 46
- 被引次数: 0
出版历程
- 收稿日期: 2022-03-07
- 网络出版日期: 2023-04-11

Experiment on the effect of piston ring gap angle on the performance of squeeze film damper

1.
Commercial Aircraft Engine Company Limited， Aero Engine Corporation of China，Shanghai 200241，China
2.
School of Energy Science and Engineering， Harbin Institute of Technology，Harbin 150001，China

摘要

摘要:
采用正交激振测试方法，研究了不同供油孔数、不同供油压力与活塞环开口角度对泄漏量的影响，试验识别了挤压油膜阻尼器（SFD）系统的阻尼系数。结果表明：1孔供油且活塞环开口与供油孔重合时泄漏量最大；供油孔数、供油压力与活塞环开口角度共同影响下，低供油压力、1孔供油活塞环开口角度0°时主阻尼系数$ { C_{xx }} $和${ C_{yy} } $差异最小；活塞环开口角度0°且最下方的1孔供油时，SFD系统的阻尼性能最好，平均主阻尼系数能达到9.04×10⁴ N·s/m，约为理论短轴承解最大值的5.7倍，建议安装时两个活塞环开口角度为0°以保证具有较好的密封性，提升SFD工作时的减振性能。
- 挤压油膜阻尼器 /
- 活塞环 /
- 泄漏量 /
- 激振测试 /
- 阻尼系数
Abstract:
The influences of different numbers of oil supply holes, supply pressure and piston ring gap angle on leakage were considered by orthogonal excitation method, and the damping coefficients of squeeze film damper (SFD) were identified. The results showed that the maximum leakage occurred when single oil supply hole existed and the piston ring gap coincided with the oil supply hole; under multiple influences of the number of oil supply holes, supply pressure and piston ring gap angle, the difference between the principal damping coefficients C_xx and C_yy was minimum when the piston ring gap angle with low oil pressure and single oil supply hole was 0°; the damping performance of SFD was excellent when the piston ring gap angle was 0° and the lowest single oil supply hole existed, and the average principal damping coefficient amounted to 9.04×10⁴ N·s/m, which was about 5.7 times of the maximum value of theoretical short bearing solution. It is recommended that the two piston ring gap angles should be all 0° during installation to ensure well sealing performance and improve the performance of SFD during operation.
- squeeze film damper /
- piston ring /
- leakage /
- shaking experiment /
- damping coefficient

HTML

图 1 SFD动力学系数识别试验装置

Figure 1. Dynamic coefficient identification test rig for SFD

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图 2 SFD试验台照片

Figure 2. Photo of test rig for SFD

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图 3 滑油在活塞环搭扣处泄漏示意图

Figure 3. Schematic of oil leakage at the agraffe of piston ring

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图 4 SFD活塞环端封结构（径向视图）

Figure 4. Piston ring end seal structure of SFD （radial view）

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图 5 SFD活塞环端封结构照片

Figure 5. Photo of piston ring end seal structure of SFD

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图 6 供油孔、激振力和位移的相对位置

Figure 6. Relative position of oil supply hole, shocking force and displacement

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图 7 SFD试验时活塞环开口角度与供油孔相对位置

Figure 7. Relative position between the piston ring gap angle and oil supply hole during SFD experiment

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图 8 SFD动力学系数识别示意图

Figure 8. Schematic of dynamic coefficient identification for SFD

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图 9 不同活塞环开口角度下频域识别结果

Figure 9. Frequency domain identification result of different piston ring gap angles

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图 10 1孔供油时SFD静态与动态泄漏量分析

Figure 10. Analysis of static and dynamic leakage of SFD with single oil supply hole

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图 11 3孔供油时SFD静态与动态泄漏量分析

Figure 11. Analysis of static and dynamic leakage of SFD with three oil supply holes

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图 12 6孔供油时SFD静态与动态泄漏量分析

Figure 12. Analysis of static and dynamic leakage of SFD with six oil supply holes

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图 13 1孔供油时SFD主阻尼系数分析

Figure 13. Analysis of SFD principal damping coefficients with single oil supply hole

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图 14 3孔供油时SFD主阻尼系数分析

Figure 14. Analysis of SFD principal damping coefficients with three oil supply holes

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图 15 6孔供油时SFD主阻尼系数分析

Figure 15. Analysis of SFD principal damping coefficients with six oil supply holes

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图 16 SFD平均主阻尼系数影响

Figure 16. Influence of SFD average principal damping coefficient

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表 1 详细试验条件

Table 1. Detailed experiment conditions

参数	数值及说明
等效直径/mm	235.2
油膜半径间隙c/mm	0.2$ \pm 0.05 $
有效油膜长度L/mm	25
滑油牌号	15号航空润滑油（地面用）
滑油动力黏度μ /（mPa·s）	3.57（21℃）
内测活塞环开口角度/（°）	0
外测活塞环开口角度/（°）	0, 90, 180, 270
激振力幅值/N	270～370
激振力频率/Hz	52
供油压力/MPa	0.05, 0.1, 0.3, 0.4
供油孔直径/mm	2
供油孔数	1孔—4#供油孔
	3孔—2#、4#、6#供油孔
	6孔—1#~6#供油孔

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参考文献(19)

[1]	JOHANNESSON H L. Oil leakage and friction forces of reciprocating O-ring seals considering cavitation[J]. Journal of Lubrication Technology,1983,105(2): 288-296. doi: 10.1115/1.3254595
[2]	DRAGONI E,STROZZI A. Analysis of an unpressurized, laterally restrained, elastomeric O-ring seal[J]. Journal of Tribology,1988,110(2): 193-200. doi: 10.1115/1.3261583
[3]	JUNG S Y,SAN ANDRES L A,VANCE J M. Measurements of pressure distributions and force coefficients in a squeeze film damper: Part Ⅱ partially sealed configuration[J]. Tribology Transactions,2008,34(3): 383-388.
[4]	JUNG S Y,SAN ANDRES L A,VANCE J M. Measurements of pressure distributions and force coefficients in a squeeze film damper: Part Ⅰ fully open ended configuration[J]. Tribology Transactions,2008,34(3): 375-382.
[5]	CHEN P,HAHN E J. Side clearance effects on squeeze film damper performance[J]. Tribology International,2000,33(3/4): 161-165.
[6]	KIM K J,LEE C W. Dynamic characteristics of sealed squeeze film damper with a central feeding groove[J]. Journal of Tribology,2005,127(1): 103-111. doi: 10.1115/1.1828075
[7]	XING Changhu, BRAUN M J, LI Hongmin. Sealing effect on the performance of squeeze film damper[C]//ASME Turbo Expo: Power for Land, Sea, & Air. Orlando, USA: AMSE, 2009: 1325-1334.
[8]	DELGADO A,ANDRES L S. A model for improved prediction of force coefficients in grooved squeeze film dampers and oil seal rings[J]. Journal of Tribology,2010,132(3): 032202.1-032202.12.
[9]	SAN ANDRÉS L,SANJEEV S. Damping and inertia coefficients for two end sealed squeeze film dampers with a central groove: measurements and predictions[J]. Journal of Engineering for Gas Turbines and Power,2013,135(11): 112503.1-112503.9.
[10]	LUIS S A,KOO B,JEUNG S H. Experimental force coefficients for two sealed ends squeeze film dampers (piston rings and O-rings): an assessment of their similarities and differences[J]. Journal of Engineering for Gas Turbines and Power,2019,141(2): 021024.1-021024.13.
[11]	DOUSTI S, DIMOND T W, ALLAIRE P E, et al. Time transient analysis of horizontal rigid rotor supported with O-ring sealed squeeze film damper[R]. ASME Paper IMECE2013-63907, 2013.
[12]	JEUNG S H,SAN ANDRÉS L S,DEN S,et al. Effect of oil supply pressure on the force coefficients of a squeeze film damper sealed with piston rings[J]. Journal of Tribology,2019,141(6): 61701. doi: 10.1115/1.4043238
[13]	LU X L,SAN ANDRÉS L,WU T C. Leakage and force coefficients of a grooved wet (bubbly liquid) seal for multiphase pumps and comparisons with prior test results for a three wave seal[J]. Journal of Engineering for Gas Turbines and Power,2020,142(1): 011011. doi: 10.1115/1.4044682
[14]	FAN Tieshu,BEHDINAN K. Investigation into the effect of piston ring seals on an integrated squeeze film damper model[J]. Journal of Mechanical Science and Technology,2019,33(2): 559-569. doi: 10.1007/s12206-019-0109-4
[15]	LU Xueliang, ANDRÉS L S, KOO B, et al. On the effect of the gap of end seals on force coefficients of a test integral squeeze film damper: experiments and predictions[J] Journal of Engineering for Gas Turbines and Power, 2021, 143(1): 011014.
[16]	ATULKAR A,PANDEY R K,SUBBARAO P M V. Performance analysis of two-dimensional section of partially textured piston ring with cavitation boundary conditions[J]. Surface Topography-Metrology and Properties,2021,9(2): 025025.1-025025.17.
[17]	ANDRES S L,RODRÍGUEZ B. On the experimental dynamic force performance of a squeeze film damper supplied through a check valve and sealed with O-rings[J]. Journal of Engineering for Gas Turbines and Power,2021,143(11): 111011. doi: 10.1115/1.4051964
[18]	TAKEUCHI R,ISHIMARU H,YAMASHITA H,et al. Experimental evaluation of dynamic characteristics of circular arc spring dampers for rotating machinery[J]. Journal of Engineering for Gas Turbines and Power,2021,143(6): 061008. doi: 10.1115/1.4049164
[19]	《航空发动机设计手册》总编委会. 航空发动机设计手册: 第19册转子动力学及整机振动[M]. 北京: 航空工业出版社, 2000: 236-237.