基于参数映射的螺栓结构有限元模型构建方法  

Method for Constructing Finite Element Model of Bolt Structures Based on Parameter Mapping

作　　者：倪卫国[1] NI Weiguo(Shanghai Marine Equipment Research Institute,Shanghai 200031,China)

机构地区：[1]上海船舶设备研究所,上海200031

出　　处：《机电设备》2024年第3期13-20,共8页Mechanical and Electrical Equipment

摘　　要：文章提出一种基于参数映射的螺栓结构有限元模型构建方法。将螺栓的不同区域进行几何分块,有效简化了螺栓整体结构的几何复杂程度,间接提高网格划分的精度和质量。针对螺栓结构中主要受力区域即螺纹结构进行精细化网格划分,引导生成高精度的螺纹结构体网格,实现通过设计参数快速引导螺栓结构几何模型自动生成的过程,并实现螺纹接触面的自动化建立,有效地提高螺栓结构建模效率,满足螺栓组件局部强度仿真需求,为多型号超级螺栓组件的快速选型提供有效的模型输入。通过实例,验证所提参数化建模流程的有效性与可靠性。A parameter mapping based finite element model construction method is proposed for bolt structures.The geometric partitioning of different regions of the bolts effectively simplifies the geometric complexity of the overall structure of the bolts,indirectly improving the accuracy and quality of mesh generation.The refined mesh division is carried out for the main force bearing area in the bolt structure,namely the thread structure,to guide the generation of high-precision thread structure mesh.The process of quickly guiding the automatic generation of bolt structure geometric modeling through design parameters is realized,and the automatic establishment of thread contact surface is realized,which effectively improves the modeling efficiency of bolt structure and meets the local strength simulation requirements of bolt components.It provides effective model input for the rapid selection of multiple types of bolt components.The effectiveness and reliability of the parameterized modeling process proposed are verified through an example analysis.

关 键 词：参数化建模 螺栓 接触 映射网格 

分 类 号：TH131.3[机械工程—机械制造及自动化]