管内封堵器橡胶筒长度对封堵性能的影响
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摘要
橡胶筒是油气管道内封堵器封堵模块中的核心部分,为了研究橡胶筒轴向长度对封堵过程的影响规律,通过橡胶材料的力学性能测试及材料非线性和接触非线性理论研究,结合动力学有限元仿真分析方法,建立了封堵器橡胶筒封堵过程力学模型。利用该模型进行了不同长度橡胶筒封堵过程的模拟仿真分析,总结了橡胶筒长度对封堵性能的影响规律。研究表明:在同样的驱动力作用下,随着橡胶筒有效长度的增加,橡胶筒与管壁之间的接触力不断减小,对应的等效应力和接触应力也减小。因此,在封堵器橡胶筒选型阶段,在保证压缩后有效密封长度大于封堵所需安全长度阈值的前提下,应尽量选择有效长度相对较短的橡胶筒结构。(图5,表3,参22)
The rubber tube is the core component in the plugging module of the occluder inside oil and gas pipeline. In order to study the influence of the axial length of the rubber tube on the plugging process, the mechanical properties of rubber materials were tested, and material nonlinearity and contact nonlinear theories were studied in this paper. Then, the mechanical model for simulating the plugging process of rubber tube was established by means of dynamic finite element simulation method. After this model was used to simulate and analyze the plugging process of rubber tube of different lengths, the influential laws of the rubber tube length on the plugging performance were summarized. The results show that under the same driving force, the contact force between the rubber tube and the pipeline wall decreases with the increase of the effective length of the rubber tube, and correspondingly the equivalent stress and contact stress decreases as well.Therefore, in the selection stage of the rubber tube of the occluder, it is necessary to select the rubber tube with shorter effective length under the premise that the effective plugging length after the compression shall be greater than the safe length threshold of the plugging.(5 Figures, 3 Tables, 22 References)
The rubber tube is the core component in the plugging module of the occluder inside oil and gas pipeline. In order to study the influence of the axial length of the rubber tube on the plugging process, the mechanical properties of rubber materials were tested, and material nonlinearity and contact nonlinear theories were studied in this paper. Then, the mechanical model for simulating the plugging process of rubber tube was established by means of dynamic finite element simulation method. After this model was used to simulate and analyze the plugging process of rubber tube of different lengths, the influential laws of the rubber tube length on the plugging performance were summarized. The results show that under the same driving force, the contact force between the rubber tube and the pipeline wall decreases with the increase of the effective length of the rubber tube, and correspondingly the equivalent stress and contact stress decreases as well.Therefore, in the selection stage of the rubber tube of the occluder, it is necessary to select the rubber tube with shorter effective length under the premise that the effective plugging length after the compression shall be greater than the safe length threshold of the plugging.(5 Figures, 3 Tables, 22 References)
引文
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[19]GIUSEPPE S,LUIGI V.Generalised Mooney-Rivlin models for brain tissue:A theoretical perspective[J].International Journal of Non-Linear Mechanics,2018,109:9-14.
[20]江华生,孟祥铠,沈明学,等.油封唇口静态接触特性的有限元分析[J].润滑与密封,2016,41(10):57-61.JIANG H S,MENG X K,SHEN M X,et al.Finite element analysis of static contact properties for oil sealing lip[J].Lubrication Engineering,2016,41(10):57-61.
[21]陈浩,付来强,吴文科,等.皮碗不同唇长和工作压差时接触性能研究[J].机械设计与制造,2018,11(11):45-48.CHEN H,FU L Q,WU W K,et al.Study on the contact performance of pig’s sealing disc in different lip length and working pressure[J].Machinery Design&Manufacture,2018,11(11):45-48.
[22]郭添鸣,米凯夫,张洪霖,等.超大规格皮碗密封件橡胶的研制[J].化工机械,2018,45(3):350-353.GUO T M,MI K F,ZHANG H L,et al.Development of rubber for sealing parts of oversize bowls[J].Chemical Engineering&Machinery,2018,45(3):350-353.
[2]张仕民,梅旭涛,王国超,等.油气管道维抢修方法及技术进展[J].油气储运,2014,33(11):1108-1186.ZHANG S M,MEI X T,WANG G C,et al.Oil/gas pipeline maintenance and emergency repair method and its progress[J].Oil&Gas Storage and Transportation,2014,33(11):1108-1186.
[3]崔子梓,闫宏伟,焦彪彪,等.管道内封堵气囊的结构设计与优化[J].油气储运,2018,37(1):63-68.CUI Z Z,YAN H W,JIAO B B,et al.Structure design and optimization of pipeline plugging airbag[J].Oil&Gas Storage and Transportation,2018,37(1):63-68.
[4]焦彪彪,闫宏伟,崔子梓,等.新型永磁定位自适应气囊外封堵装置设计[J].油气储运,2017,36(12):1408-1413.JIAO B B,YAN H W,CUI Z Z,et al.Design of a new external plugging device with permanent magnetic positioning and adaptive airbag[J].Oil&Gas Storage and Transportation,2017,36(12):1408-1413.
[5]刘华洁,张策,张仕民,等.管内高压智能封堵机器人[J].石油机械,2013,41(6):115-118.LIU H J,ZHANG C,ZHANG S M,et al.The in-tube pressurized intelligent plugging robot[J].China Petroleum Machinery,2013,41(6):115-118.
[6]樊文斌,罗自治,张策.管内高压封堵器的研制[J].油气储运,2011,30(8):657-659.FAN W B,LUO Z Z,ZHANG C.Development of highpressure pipeline isolation plug[J].Oil&Gas Storage and Transportation,2011,30(8):657-659.
[7]张行,张仕民,张策,等.1 016 mm管道球状双封封堵器的结构设计及封堵能力[J].油气储运,2014,33(10):1108-1112.ZHANG H,ZHANG S M,ZHANG C,et al.Structural design and plugging capacity of globular double-plugging plug in 1 016mm pipeline[J].Oil&Gas Storage and Transportation,2014,33(10):1108-1112.
[8]KRISTON A,FüL?P T,ISITMAN N A,et al.A novel method for contact analysis of rubber and various surfaces using microcomputerized-tomography[J].Polymer Testing,2016,53:132-142.
[9]AMINO N,ISHIKAWA Y,SATO M.Analysis of contact states between rubber and mated surface using x-ray imaging method[J].Nippon Gomu Kyokaishi,2012,87(7):278-283.
[10]谭桂斌,陈迎春,宫壘.管道机器人橡胶密封碗运移力学模型[J].油气储运,2017,36(3):284-289.TAN G B,CHEN Y C,GONG L.A movement mechanics model for the rubber sealing cup of in-pipe robot[J].Oil&Gas Storage and Transportation,2017,36(3):284-289.
[11]张行,王焱,张仕民,等.清管器密封皮碗力学特性的有限元分析[J].油气储运,2015,34(11):1225-1230.ZHANG H,WANG Y,ZHANG S M,et al.Finite-element analysis on mechanical properties of sealing disc for pig[J].Oil&Gas Storage and Transportation,2015,34(11):1225-1230.
[12]郑明军,王文静,陈政南,等.橡胶Mooney-Rivlin模型力学性能常数的确定[J].橡胶工业,2003,22(8):462-465.ZHENG M J,WANG W J,CHEN Z N,et al.Determination for mechanical constants of rubber Mooney-Rivlin model[J].China Rubber Industry,2003,22(8):462-465.
[13]YEOH O H.Some forms of the strain energy for rubber[J].Rubber Chemical and Technology,1993,66(5):754-771.
[14]ABRAMO A,ARTUR L,GOWER P.The constitutive relations of initially stressed incompressible MooneyRivlin materials[J].Mechanics Research Communications,2017,93:4-10.
[15]李宇明,郑坚,白鸿柏.金属橡胶材料的动态力学模型[J].材料研究学报,2003,17(5):18-23.LI Y M,ZHENG J,BAI H B.Dynamic mechanics model of metal-rubber materials[J].Chinese Journal of Materials Research,2003,17(5):18-23.
[16]孙林松.接触问题有限元分析方法综述[J].水利水电科技进展,2001,21(3):18-23.SUN L S.A summary of finite element analysis for contact problems[J].Advances in Science and Technology of Water Resources,2001,21(3):18-23.
[17]张劲,李炜,张士诚.封隔器超弹性胶筒力学性能的试验研究[J].机械工程学报,2011,47(8):71-76.ZHANG J,LI W,ZHANG S C.Experimental study on mechanics properties of rubber for packer sleeve[J].Journal of Mechanical Engineering,2011,47(8):71-76.
[18]王云学,许仁波,孟奇龙,等.压缩式封隔器胶筒接触力学行为有限元分析[J].武汉科技大学学报,2017,40(1):61-64.WANG Y X,XU R B,MENG Q L,et al.Mechanical behaviors of contact of compressive packer’s rubber sleeve:a finite element analysis[J].Journal of Wuhan University of Science and Technology,2017,40(1):61-64.
[19]GIUSEPPE S,LUIGI V.Generalised Mooney-Rivlin models for brain tissue:A theoretical perspective[J].International Journal of Non-Linear Mechanics,2018,109:9-14.
[20]江华生,孟祥铠,沈明学,等.油封唇口静态接触特性的有限元分析[J].润滑与密封,2016,41(10):57-61.JIANG H S,MENG X K,SHEN M X,et al.Finite element analysis of static contact properties for oil sealing lip[J].Lubrication Engineering,2016,41(10):57-61.
[21]陈浩,付来强,吴文科,等.皮碗不同唇长和工作压差时接触性能研究[J].机械设计与制造,2018,11(11):45-48.CHEN H,FU L Q,WU W K,et al.Study on the contact performance of pig’s sealing disc in different lip length and working pressure[J].Machinery Design&Manufacture,2018,11(11):45-48.
[22]郭添鸣,米凯夫,张洪霖,等.超大规格皮碗密封件橡胶的研制[J].化工机械,2018,45(3):350-353.GUO T M,MI K F,ZHANG H L,et al.Development of rubber for sealing parts of oversize bowls[J].Chemical Engineering&Machinery,2018,45(3):350-353.