【作者】 刘施；

【导师】 曾海泉；

【作者基本信息】 沈阳工业大学 ， 机械设计及理论， 2008， 硕士

【摘要】 螺旋状预埋件在机械、建筑等领域,有着广泛的应用。比如边坡加固中的锚杆、固定用的地脚螺栓、钢筋混凝土中的螺纹钢等。表面带有螺旋状凸棱的材料有很多,如螺纹钢、螺旋状碳纤维、螺旋状纳米碳管等。虽然螺旋状预埋件的应用广泛,但是关于螺旋状预埋件及其周边的应力应变分析的定量分析在国内外的研究却很少,在研究时往往通过试验获得数据,然后进行定性分析,或者将其螺旋状的表面近似成光滑的表面进行计算。针对上述问题,本课题以有限元的基本思想为指导,以有限元分析软件ANSYS为工具,对螺旋状预埋件及其基体周边的应力应变情况进行了分析。论文中第一章对课题的背景、意义、研究目的及研究现状做了阐述。第二章讲述了有限元法的产生、发展、基本思想及求解步骤,还简单介绍了有限元分析软件ANSYS。第三章论述了螺旋状预埋件及其基体的参数化建模与分析的基本过程。第四章讨论了预埋件的各个参数对其应力应变的影响,并绘制了相应的应力应变曲线。第五章对全文进行了总结和进一步工作展望。利用本课题完成的螺旋状预埋件周边的应力应变分析,做到了分析过程的可视化以及参数化建模与分析的智能化,可以随意组合基体和螺旋状预埋件,随意更改它们的形状及尺寸、材质,为今后进行其他类型的预埋件的应力应变问题的解决奠定了较为全面的基础。更多还原

【Abstract】 Spiral-shaped embedded parts have wide application in the machinery and construction field. For example, the anchor rod used in the slope reinforcement, fixed use of anchor bolt, the rebar in the reinforced concrete and so on. There are many materials have spiral prism on their surface, for example, rebar, spiral carbon fiber, spiral nanometer carbon tube etc. Although the spiral parts is widely used, there is very few studies on the spiral buries parts and in the vicinity of the stress and strain analysis, and when studies on the force, often approximates the spiral surface to the smooth surface in computing, or obtains through experiments.In view of above questions, this paper use the finite element basic ideology as the guide, using the finite element analysis software ANSYS as tool, analyses the spiral buries parts and the stress and strain in the vicinity. In the paper, the first chapter expatiates the background, meaning, purpose of the study and the present research condition of this topic; the second chapter describes the generation, development, basic idea and solving steps of the finite element method, also simply introduces the basic idea of the ANSYS which is one of the finite element analysis software; the third chapter narrated the buries parts and the basic processes of the basic parametric modeling and analysis; the fourth chapter discusses the impact of the various parameters of the buries parts on the stress-strain, and draws the corresponding stress-strain curve; the fifth chapter make a summary of the whole paper, and carries a forecast to the following work. Making use of the completed stress-strain analysis of the spiral-shape embedded parts, attains the visualization of the analysis process, parametric modeling, and intelligence analysis, matrix and spiral-shaped embedded parts can be arbitrarily combined, their shape, size and material can be changed arbitrarily, establishes a more comprehensive foundation for other types of the spiral-shape embedded parts stress and the Strain analysis in the future.更多还原