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On-line Access: 2024-08-27

Received: 2023-10-17

Revision Accepted: 2024-05-08

Crosschecked: 2024-01-15

Cited: 0

Clicked: 1240

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Bing-qing Wang

https://orcid.org/0000-0002-7004-9550

Xiaoxuan LI

https://orcid.org/0000-0003-1170-9122

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Journal of Zhejiang University SCIENCE A 2024 Vol.25 No.1 P.63-78

http://doi.org/10.1631/jzus.A2200612


Effect of nitrile butadiene rubber hardness on the sealing characteristics of hydraulic O-ring rod seals


Author(s):  Xiaoxuan LI, Bingqing WANG, Xudong PENG, Yuntang LI, Xiaolu LI, Yuan CHEN, Jie JIN

Affiliation(s):  College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China; more

Corresponding email(s):   bqwang@cjlu.edu.cn

Key Words:  Nitrile butadiene rubber (NBR) hardness, Sealing characteristics, Optimized selection, O-ring seal


Xiaoxuan LI, Bingqing WANG, Xudong PENG, Yuntang LI, Xiaolu LI, Yuan CHEN, Jie JIN. Effect of nitrile butadiene rubber hardness on the sealing characteristics of hydraulic O-ring rod seals[J]. Journal of Zhejiang University Science A, 2024, 25(1): 63-78.

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author="Xiaoxuan LI, Bingqing WANG, Xudong PENG, Yuntang LI, Xiaolu LI, Yuan CHEN, Jie JIN",
journal="Journal of Zhejiang University Science A",
volume="25",
number="1",
pages="63-78",
year="2024",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2200612"
}

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%T Effect of nitrile butadiene rubber hardness on the sealing characteristics of hydraulic O-ring rod seals
%A Xiaoxuan LI
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T1 - Effect of nitrile butadiene rubber hardness on the sealing characteristics of hydraulic O-ring rod seals
A1 - Xiaoxuan LI
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A1 - Yuntang LI
A1 - Xiaolu LI
A1 - Yuan CHEN
A1 - Jie JIN
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Abstract: 
The nitrile butadiene rubber (NBR) hardness effect on the sealing characteristics of hydraulic O-ring rod seals is analyzed based on a mixed lubrication elastohydrodynamic model. Parameterized studies are conducted to reveal the mechanism of the influence of rubber hardness on the static and dynamic behavior of seals. The optimized selections of rubber hardness are then investigated under different conditions. Results show that the low hardness seal is prone to stress concentration due to the extrusion effect under high pressure conditions; it is also more prone to leaking. A high hardness seal can better prevent leakage by reducing film thickness but it will cause large frictional power loss and increase the probability of wear failure. The choice of low hardness is recommended to reduce friction with the premise that leakage requirements are met.

丁腈橡胶硬度对O形液压杆封密封性能的影响

作者:李晓暄1,王冰清1,2,彭旭东3,李运堂2,李孝禄2,陈源2,金杰2
机构:1中国计量大学,质量与安全工程学院,中国杭州,310018;2中国计量大学,机电工程学院,中国杭州,310018;3浙江工业大学,机械工程学院,中国杭州,310023
目的:研究丁腈橡胶硬度对O形液压杆封静/动态密封性能的影响,为其工程中橡胶硬度的选型提供理论参考。
创新点:1.基于混合弹流润滑模型,分析了丁腈橡胶硬度对O形液压杆封静/动态密封性能的影响;2.以低泄漏、低摩擦为目标,获得了静/动态应用下丁腈橡胶O形液压杆封的橡胶硬度优选范围。
方法:1.通过数值分析静接触压力、von Mises应力、最小液膜厚度、泄漏率和摩擦力,揭示丁腈橡胶硬度对O形液压杆封静/动态密封性能的影响机理;2.以最大静接触压力和最大von Mises应力作为静密封性能评价指标,以及以净泄漏量和摩擦功耗作为动密封性能的评价指标,确定丁腈橡胶O形液压杆封的最佳橡胶硬度值。
结论:1.随着橡胶硬度的增加,丁腈橡胶O形液压杆封的抗变形能力增强,静接触压力增大,最小液膜厚度减小,泄漏量减小,摩擦力增大;2.低硬度密封易产生挤出效应和应力集中现象,因此更适合在高速或低密封性要求的场合使用;3.高硬度密封具有更优的静/动态密封性能,所以特别适用于高压工况场合,但由于其摩擦力较大,因此在满足泄漏要求的前提下应尽量选择相对较低的橡胶硬度以减小摩擦。

关键词:丁腈橡胶硬度;密封性能;优化选型;O形圈

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1]Airbus, 2012. A318/A319/A320/A321 Aircraft Maintenance Manual, Check of the External Leaks of the Hydraulic Components, AMM TASK 29-00-00-790-001. Airbus, Toulouse, France.

[2]CharltonDJ, YangJ, TehKK, 1994. A review of methods to characterize rubber elastic behavior for use in finite element analysis. Rubber Chemistry and Technology, 67(3):481-503.

[3]ChengGL, GuoF, ZangXH, et al., 2022. Failure analysis and improvement measures of airplane actuator seals. Engineering Failure Analysis, 133:105949.

[4]ElhardJD, DuguidA, HeinrichsM, 2017. Research on Safety Technology Verification for Materials and Corrosions in the US Outer Continental Shelf (OCS), High Pressure High Temperature (HPHT) Material Evaluation. Technical Assessment Program Report (TAP 767AA), Bureau of Safety and Environmental Enforcement, Battelle, USA.

[5]FeyzullahoğluE, 2015. Abrasive wear, thermal and viscoelastic behaviors of rubber seal materials used in different working conditions. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 229(1):64-73.

[6]GAQSIQ (General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China), 2005. Housing Dimensions for O-ring Elastomer Seals in Hydraulic and Pneumatic Applications, GB/T 3452.3–2005. National Standards of the People’s Republic of China(in Chinese).

[7]GentAN, 1958. On the relation between indentations hardness and Young’s modulus. Rubber Chemistry and Technology, 31(4):896-906.

[8]GentAN, 2012. Engineering with Rubber: How to Design Rubber Components. 3rd Edition. Carl Hanser Verlag, Munich, Germany, p.37-41.

[9]HanCJ, ZhangH, ZhangJ, 2015. Structural design and sealing performance analysis of biomimetic sealing ring. Applied Bionics and Biomechanics, 2015:358417.

[10]HuangYC, HsuHC, 2018. Numerical simulation and experimental validation of novel hyperelastic micro-motion manipulator for water conserving device. Microsystem Technologies, 24(8):3329-3339.

[11]JiangBQ, JiaXH, WangZX, et al., 2019. Influence of thermal aging in oil on the friction and wear properties of nitrile butadiene rubber. Tribology Letters, 67(3):86.

[12]LeeYS, HaKR, 2021. Effects of acrylonitrile content on thermal characteristics and thermal aging properties of carbon black-filled NBR composite. Journal of Elastomers & Plastics, 53(5):402-416.

[13]LeeYS, ParkSH, LeeJC, et al., 2016. Influence of microstructure in nitrile polymer on curing characteristics and mechanical properties of carbon black-filled rubber composite for seal applications. Journal of Elastomers & Plastics, 48(8):659-676.

[14]LiB, LiSX, ShenMX, et al., 2021. Tribological behaviour of acrylonitrile-butadiene rubber under thermal oxidation ageing. Polymer Testing, 93:106954.

[15]LiangBL, YangX, WangZL, et al., 2019. Influence of randomness in rubber materials parameters on the reliability of rubber O-ring seal. Materials, 12(9):1566.

[16]LinZH, YuLJ, HuaTF, et al., 2022. Seal contact performance analysis of soft seals on high-pressure hydrogen charge valves. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 23(4):247-256.

[17]LiuD, YunFH, JiaoKF, et al., 2022. Structural analysis and experimental study on the spherical seal of a subsea connector based on a non-standard O-ring seal. Journal of Marine Science and Engineering, 10(3):404.

[18]MooneyM, 1940. A theory of large elastic deformation. Journal of Applied Physics, 11(9):582-592.

[19]NikasGK, 2003. Analytical study of the extrusion of rectangular elastomeric seals for linear hydraulic actuators. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 217(5):365-373.

[20]NikasGK, 2018. Parametric and optimization study of rectangular-rounded, hydraulic, elastomeric, reciprocating seals at temperatures between -54 and +135 °C. Lubricants, 6(3):77.

[21]PengC, OuyangXP, SchmitzK, et al., 2021a. Investigation of the tribological performance of reciprocating seals in a wide temperature range. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 235(11):2396-2414.

[22]PengC, OuyangXP, SchmitzK, et al., 2021b. Numerical and experimental study on combined seals with the consideration of stretching effects. Journal of Tribology, 143(6):062301.

[23]SchellerJ, BaurPJ, 2021. Characterization of leakage, clamping force and retaining force of reusable sealing frame with elastomer O-ring for thin plasma polymeric coated thermoplastic polyester-ether films. Vacuum, 192:110501.

[24]SukumarT, BapuBRR, PrasadBD, 2019. Determination of sealing pressure in hyperelastic O-ring with different hardness using numerical method. Journal of Elastomers & Plastics, 51(7-8):684-697.

[25]UcarH, BasdoganI, 2018. Dynamic characterization and modeling of rubber shock absorbers: a comprehensive case study. Journal of Low Frequency Noise, Vibration and Active Control, 37(3):509-518.

[26]WangBQ, PengXD, MengXK, 2018a. Elastohydrodynamic lubrication characteristics of an O-ring hydraulic rod seal during transient operation. CSAA/IET International Conference on Aircraft Utility Systems, p.348-353.

[27]WangBQ, PengXD, MengXK, 2018b. Simulation of the effects of non-Newtonian fluid on the behavior of a step hydraulic rod seal based on a power law fluid model. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 19(11):824-842.

[28]WangBQ, PengXD, MengXK, 2019. A thermo-elastohydrodynamic lubrication model for hydraulic rod O-ring seals under mixed lubrication conditions. Tribology International, 129:442-458.

[29]WindslowRJ, BusfieldJJC, 2019. Viscoelastic modeling of extrusion damage in elastomer seals. Soft Materials, 17(3):228-240.

[30]ZhangJ, XieJX, 2018. Investigation of static and dynamic seal performances of a rubber O-ring. Journal of Tribology, 140(4):042202.

[31]ZhangYW, ShiJ, WangSP, et al., 2016. Sealing mechanism and failure analysis of actuator reciprocating seal. IEEE 11th Conference on Industrial Electronics and Applications, p.2190-2195.

[32]ZhangZB, WuDF, PangH, et al., 2020. Extrusion-occlusion dynamic failure analysis of O-ring based on floating bush of water hydraulic pump. Engineering Failure Analysis, 109:104358.

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