本文關(guān)鍵詞： 連續(xù)油管 震擊器 結(jié)構(gòu)研究 力學(xué)分析 有限元仿真　出處：《西南石油大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：連續(xù)油管作業(yè)雙向震擊器是連續(xù)油管作業(yè)中常用的解卡工具,受連續(xù)油管作業(yè)環(huán)境的限制,其整體尺寸比常規(guī)震擊器小,其關(guān)鍵部位結(jié)構(gòu)的合理性直接影響震擊器的使用壽命。連續(xù)油管作業(yè)雙向震擊器在現(xiàn)場使用過程中常出現(xiàn)沖擊管斷裂、扭矩傳遞機(jī)構(gòu)花鍵齒過度磨損或齒面壓潰以及閥體磨損導(dǎo)致的阻尼機(jī)構(gòu)密封失效等問題,嚴(yán)重影響了震擊器解卡效率。因此,本文對連續(xù)油管作業(yè)雙向震擊器的關(guān)鍵部件進(jìn)行了結(jié)構(gòu)研究與仿真分析,建立了一種仿真分析方法并提出合理的改進(jìn)方案,旨在提高連續(xù)油管作業(yè)雙向震擊器解卡效率,延長工具使用壽命。本文具體研究內(nèi)容如下:(1)對不同類型震擊器的結(jié)構(gòu)進(jìn)行分析,結(jié)合連續(xù)油管工作環(huán)境的特點(diǎn),確定本文研究對象;對震擊器在平衡狀態(tài)工況及震擊工況下的工作受力進(jìn)行分析;基于液壓式震擊器在各工況下的受力情況對其進(jìn)行失效分析,并針對各種失效形式提出改進(jìn)措施;(2)對扭矩傳遞機(jī)構(gòu)關(guān)鍵部位進(jìn)行性能仿真模擬,研究花鍵齒參數(shù)對扭矩傳遞機(jī)構(gòu)承載能力的影響規(guī)律。建立不同齒數(shù)的花鍵副有限元模型,研究花鍵齒數(shù)對扭矩傳遞機(jī)構(gòu)承載能力的影響規(guī)律。(3)建立震擊器沖擊部位結(jié)構(gòu)有限元仿真模型,計(jì)算工具疲勞壽命,對沖擊管與花鍵心軸幾何過渡區(qū)及花鍵心軸與下接頭幾何過渡區(qū)提出改進(jìn)方案,并通過有限元仿真驗(yàn)證后得到最優(yōu)方案。(4)利用ISIGHT與ABAQUS結(jié)合的自動仿真流程對阻尼機(jī)構(gòu)其進(jìn)行仿真試驗(yàn)設(shè)計(jì)和區(qū)間線性優(yōu)化,研究閥體與液缸配合面的最佳斜度。并通過理論計(jì)算-仿真驗(yàn)證-誤差分析-近似模型-仿真驗(yàn)證的流程計(jì)算最佳過盈量取值范圍。
[Abstract]:The continuous tubing two-way shock hammer is a commonly used tool for unblocking in the continuous tubing operation. Due to the restriction of the continuous tubing operation environment, its overall size is smaller than that of the conventional shock hammer. The rationality of the structure of the key position directly affects the service life of the vibrator. The fracture of the shock pipe is often found in the field operation of the continuous tubing two-way shock hammer. The excessive wear of spline teeth of torque transfer mechanism or tooth surface crushing and the sealing failure of damping mechanism caused by the wear of valve body have seriously affected the efficiency of releasing card of shock hammer. In this paper, the structural research and simulation analysis of the key components of the continuous tubing two-way shock hammer are carried out, a simulation analysis method is established and a reasonable improvement scheme is put forward. The purpose of this paper is to improve the efficiency of removing cards and prolong the service life of continuous tubing two-way hammer. The specific contents of this paper are as follows: 1) the structure of different types of vibrators is analyzed. According to the characteristics of continuous tubing working environment, the research object of this paper is determined. The working force of the vibrator under the equilibrium condition and the shock condition is analyzed. Based on the failure analysis of hydraulic shock hammer under various working conditions, the improvement measures are put forward for various failure forms. 2) simulating the key parts of torque transfer mechanism, studying the influence of spline tooth parameters on the load capacity of torque transfer mechanism, and establishing the finite element model of spline pair with different tooth number. The influence of spline tooth number on the bearing capacity of torque transfer mechanism is studied. (3) the finite element simulation model of the impact part of the shock hammer is established, and the fatigue life of the tool is calculated. An improved scheme is proposed for the geometric transition region between the impingement tube and the spline axis and the geometric transition region between the spline shaft and the lower joint. The optimal scheme is obtained by finite element simulation. (4) the damping mechanism is designed by simulation experiment and interval linear optimization using the automatic simulation flow of ISIGHT and ABAQUS. The optimum slope of the valve body and cylinder is studied, and the optimal interference range is calculated by theoretical calculation, simulation verification, error analysis, approximate model and simulation verification.
【學(xué)位授予單位】：西南石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TE937

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