本文關(guān)鍵詞：海洋非粘接管道接頭內(nèi)的粘接問(wèn)題研究　出處：《大連理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 海洋柔性管道接頭 粘接 抗拉鎧裝鋼絲 單搭接剪切模型 拉拔模型 折彎拉拔模型 膠體厚度 搭接長(zhǎng)度 折彎角度

【摘要】：接頭是連接柔性管道與上端浮體的重要裝備,它與柔性管道的連接性能好壞直接決定接頭的承載能力。接頭與管道連接實(shí)質(zhì)上是抗拉鎧裝鋼絲與環(huán)氧樹(shù)脂之間的粘接錨固。本文首先簡(jiǎn)單介紹非粘接柔性管道及接頭結(jié)構(gòu),并對(duì)現(xiàn)有粘接機(jī)理研究、粘接力學(xué)及接頭內(nèi)粘接問(wèn)題的國(guó)內(nèi)外研究現(xiàn)狀進(jìn)行充分的調(diào)研與分析,基于此制定一套研究接頭粘接問(wèn)題的方法,包括粘接層材料屬性擬合、粘接數(shù)值模擬、拉拔實(shí)驗(yàn)以及折彎實(shí)驗(yàn)驗(yàn)證數(shù)值模型的可行性。通過(guò)分析單搭接剪切模型的粘接層材料參數(shù),得出剪切極限強(qiáng)度是影響粘接性能最大的參數(shù)；對(duì)厚膠體拉拔模型的搭接長(zhǎng)度及膠體厚度進(jìn)行分析,發(fā)現(xiàn)：相比搭接長(zhǎng)度,膠體的厚度對(duì)粘接性能的影響并不大；根據(jù)單根折彎鋼絲拉拔數(shù)值模型及實(shí)驗(yàn)結(jié)果進(jìn)行對(duì)比,可以把接頭拉拔破壞形式分為三個(gè)階段：鋼絲的屈服、鋼絲與環(huán)氧樹(shù)脂之間的粘接破壞及擴(kuò)展、折彎鋼絲處應(yīng)力集中直至斷裂,其中直鋼絲段長(zhǎng)度、粘接層極限剪切應(yīng)力以及鋼絲的屈服強(qiáng)度對(duì)折彎拉拔模型的抗拉拔能力影響很大,折彎鋼絲段前端折彎角度及長(zhǎng)度對(duì)接頭的抗疲勞性能影響很大。本文的研究工作依托國(guó)家高技術(shù)研究發(fā)展計(jì)劃(863計(jì)劃)—深水油氣勘探開(kāi)發(fā)關(guān)鍵技術(shù)與裝備研究項(xiàng)目“柔性海底管道關(guān)鍵技術(shù)研究”(2012AA09A212)課題開(kāi)展。
[Abstract]:The joint is an important equipment to connect the flexible pipe with the upper floating body. The connection performance between the joint and the flexible pipe directly determines the bearing capacity of the joint. The connection between the joint and the pipeline is essentially the bonding anchor between the tensile armored steel wire and epoxy resin. This paper first briefly introduces the non-adhesive flexible pipe. And joint structure. And the existing research on bonding mechanism, bonding mechanics and joint bonding problems at home and abroad are fully investigated and analyzed, based on which a set of research methods for joint bonding problems are developed. The feasibility of the numerical model is verified by numerical simulation, drawing experiment and bending experiment. The material parameters of the single lap shear model are analyzed. It is concluded that the ultimate shear strength is the most important parameter affecting the bonding performance. The lapping length and colloid thickness of thick colloid drawing model are analyzed. It is found that the thickness of colloid has little effect on the adhesion performance compared with the lap length. According to the numerical model of single bending steel wire drawing and the experimental results, the joint drawing failure can be divided into three stages: the yield of steel wire, the bond failure and expansion between steel wire and epoxy resin. The stress concentration in the bending steel wire is up to fracture, in which the length of straight steel wire, the ultimate shear stress of bonding layer and the yield strength of steel wire have great influence on the drawing resistance of the bending drawing model. The bending angle and length of the front end of the bending steel wire have great influence on the fatigue resistance of the joints. -the key technology and equipment research project of deep water oil and gas exploration and development, "Research on key Technologies of flexible Submarine Pipeline" (2012AA09A212).
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE973.92

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 王偉;環(huán)氧樹(shù)脂固化技術(shù)及其固化劑研究進(jìn)展[J];熱固性樹(shù)脂;2001年03期

，

本文編號(hào)：1407207