【作者】 吕丰；

【导师】 韩国有； 刘合；

【作者基本信息】 大庆石油学院 ， 化工过程机械， 2005， 硕士

【摘要】 本课题是针对磨铣类工具的失效问题的研究。以活动引领铣鞋为研究对象,针对工具失效部位建立了局部非线性力学模型,采用ANSYS 有限元软件对模型进行分析和计算。在ANSYS 有限元软件中,充分考虑了模型构件之间的多相非线性接触状态,通过对模型构件之间的接触设置来传递载荷,准确的模拟了实际工作状态。在ANSYS 有限元软件中,通过人为的设置较准确的模拟出了工具在实际工况中的边界条件,并且计算出各条件下的应力及变形状态。对修井工具应用力学有限元分析软件建立力学分析模型以后,进行系统的分析和计算。对修井过程中工具的受力和变形建立理论,明确了修井过程中各种参数对修井工具的应力和变形的影响程度。这样就为修井工具结构的进一步优化提供了力学方面的理论依据。更多还原

【Abstract】 The paper is about the research aiming at the failure problem of milling tools. Making the active leading milling shoe as the research object, the local nonlinear mechanical model aiming at the failure position of tools is created, the ANSYS finite element software is used to analyze and calculate the model. In the ANSYS finite element software, the multiphase nonlinear contact states between the model parts are considered adequately. The loads is passed by the contact settings of model parts, the actual working state is accurately simulated. In the ANSYS finite element software, the tool border conditions in actual working status are more accurate simulated by the artificial settings, and the stresses and deformation states are calculated in every condition. After creating the mechanical analysis model of well repairing tools being used the mechanical finite element software, the systemic analysis and calculation are carried out. The theory basis is created on the tool bearing forces and deformation during repairing well. It makes sure the influence degree of all kinds of parameters on the well repairing tools stresses and deformation. It provides the theory basis of mechanics aspects for the farther optimization of well repairing tools.更多还原