Journal of Shandong University(Engineering Science) ›› 2020, Vol. 50 ›› Issue (6): 30-39.doi: 10.6040/j.issn.1672-3961.0.2020.127

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Mechanical characteristics for deep sea wet-mate electrical connectors

HAN Jiazhen1,2, WANG Yong1,2*, XIE Yudong1,2, WANG Qixian3, ZHANG Xinbiao1,2, GAO Wenbin4, LI Ronglan4, ZHANG Chuanjun4   

  1. 1. School of Mechanical Engineering, Shandong University, Jinan 250061, Shandong, China;
    2. Key laboratory of High-Efficiency and Clean Mechanical Manufacture Ministry of Education(Shandong University), Jinan 250061, Shandong, China;
    3. Oceam College, Zhejiang University, Hangzhou 310058, Zhejiang, China;
    4. Shandong Longli Electronic Co., Ltd, Linyi 276017, Shandong, China
  • Published:2020-12-15

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Abstract: A deep-sea and wet-mate electrical connector at 7 000 meters underwater was chosen as the research subject, aiming at obtaining the mechanical characteristics and dynamic sealing performance of the wet-mate connector under the condition of deep-sea double high pressure. The plug structure and pressure compensation technology of the connector were introduced and a calculation formula of the working volume of the pressure compensator was derived. Finite element models of plug's inner shell component and jack component's dynamic sealing were established by using the software Ansys Workbench, and the strength of the inner shell, pressure balance membrane and inner tank was calculated. The stress distribution and deformation of the membrane under the action of instantaneous pressure difference caused by the connector's wet-mate operation between the inside and outside of the balance membrane were analyzed. The effects of the seal component's radial compression, sealing contact surface's friction coefficient and wet-mate speed on dynamic sealing performance during the wet-mate operation were discussed. The results showed that when the plug was inserted, the stress on the outer surface of the balance membrane was almost unchanged, and its deformation was decreased; when the plug was pulled out, the stress and deformation on the outer surface of the balance membrane were gradually increased. The contact pressure between seal components was obviously affected by the interference fit of the sealing contact surface. Increasing the interference fit could significantly improve the contact pressure and sealing performance of the dynamic sealing area, but also exacerbate the possibility of seal component's failure. The sealing contact surface's friction coefficient and wet-mate speed had little influence on the contact pressure.

Key words: deep sea wet-mate electrical connector, mechanical characteristic, pressure compensation technology, finite element analysis, dynamic seal, contact pressure

CLC Number: 

  • TH137
[1] PAOLO F, LAURA B, ANGELO D S. Seafloor observatories: a new vision of the earth from the abyss[M]. Chichester, UK: Praxis Publishing, 2015: 5-6.
[2] 杨灿军, 张锋, 陈燕虎, 等. 海底观测网接驳盒技术[J]. 机械工程学报, 2015, 51(10): 172-179. YANG Canjun, ZHANG Feng, CHEN Yanhu, et al. Technologies of junction box for seafloor observation network[J]. Journal of Mechanical Engineering, 2015, 51(10): 172-179.
[3] REMOUIT F, RUIZ-MINGUELA P, ENGSTROM J. Review of electrical connectors for underwater applications[J]. IEEE Journal of Oceanic Engineering, 2018, 43(4): 1037-1047.
[4] HERNANDEZ-GUITERAS J, RIBA J R, ROMERAL L. Improved design of an extra-high-voltage expansion substation connector through magnetic field analysis[J]. Simulation Modelling Practice and Theory, 2014, 43: 96-105.
[5] GALFORD T C, PURVINIS G A. A plea for the standardization of underwater connectors[C] // Proceedings of OCEANS. Waikoloa, USA: IEEE, 2011: 1-6.
[6] PAINTER H, FLYNN J. Current and future wet-mate connector technology developments for scientific seabed observatory application[C] // Proceedings of OCEANS. Boston, USA: IEEE, 2006: 1-6.
[7] NICHOLSON A. Wet mate connector: 201415032231[P]. 2018-08-07.
[8] MATTEWOS T, MONA G, CHRISTOPHER C, et al. Characterizations of solid-liquid interface in a wet-mate subsea HVDC connector[J]. Journal of Electrostatics, 2018, 94: 51-59.
[9] GHASSEMI M, TEFFERI M B, CHEN Q, et al. A thermo-electrodynamic electric field dependent molecular ionization model to realize positive streamer propagation in a wet-mate DC connector[J]. IEEE Transactions on Dielectrics & Electrical Insulation, 2017, 24(2): 901-914.
[10] CAIRNS J. Recent advances in underwater mateable electrical connectors[C] //Proceedings of OCEANS. San Francisco, USA: IEEE, 1983: 507-511.
[11] SANDWITH C, PARADIS J, MORRISON J. Underwater electrical cable and connector seals: some in-house design options, commercial options, and performance/failure analyses[C] //Proceedings of OCEANS Conference Record. Los Angeles, USA: IEEE, 1977: 401-406.
[12] 付凯. 水下连接器瞬态拉脱力测试装置的设计及研究[D]. 杭州: 浙江大学, 2016. FU Kai. Research and design of transient pulling-off force test device of under water pressure connector[D]. Hangzhou: Zhejiang University, 2016.
[13] HAN Q, CHEN H Y, YANG W C, et al. Analysis of reciprocating o-ring seal in the pressure balanced oil-filled wet-mate electrical connectors for underwater applications[J]. Lubrication Science, 2019, 31(7): 335-345.
[14] 吴博文. 全电式水下控制模块设计与研究[D]. 哈尔滨: 哈尔滨工程大学, 2017. WU Bowen. Design and research of the all-electric subsea control system[D]. Harbin: Harbin Engineering University, 2017.
[15] 胡栋. 水下湿式电连接器密封件性能分析和寿命预测[D]. 北京: 中国石油大学(北京), 2018. HU Dong. Sealing performance analysis and lifetime prediction of underwater wet electrical connector[D]. Beijing: China University of Petroleum-Beijing, 2018.
[16] 张利彬. 耐腐蚀深水分离电连接器技术研究[D]. 杭州: 浙江大学, 2015. ZHANG Libin. The research of corrosion-resistant deep-water separation electric connectors' technology[D]. Hangzhou: Zhejiang University, 2015.
[17] 孙晓龙,段虎,曹育良,等. 一种水下插拔光纤连接器插头及其组件: 201910935877.2[P]. 2020-02-11.
[18] 周冰,张可,魏迪飞. 一种湿插拔密封水下连接器: 201821706454.0[P]. 2019-06-18.
[19] 高文彬,李荣兰,常明山. 可在水下带电插拔的充油插孔: 201710174270.8[P]. 2019-09-10.
[20] 孟庆鑫,王茁,魏洪兴,等. 深水液压动力源压力补偿器研究[J]. 船舶工程, 2000(2): 60-61. MENG Qingxin, WANG Zhuo, WEI Hongxing, et al. Development of pressure compensator for deep water hydraulic power station[J]. Ship Engineering, 2000(2): 60-61.
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