基于Abaqus有限元软件的过山车轨道钢结构力学性能分析
Mechanical Performance Analysis of Roller Coaster Steel Track Structures Using Abaqus Finite Element Software
摘要: 以大型游乐设施过山车轨道空间钢结构为研究对象，基于Abaqus有限元模拟平台建立全尺寸B31空间梁单元简化仿真模型，综合采用模态分析、移动轮载动力学计算、地震时程响应分析、模态叠加瞬态动力分析多手段开展结构力学性能研究。依据《建筑抗震设计规范》(GB50011-2010)确定场地、设防烈度、阻尼、地震加速度等核心输入参数，分别对静力承载工况、多阶模态提取、水平地震时程激励、移动小车轮组荷载包络、大变形节点瞬态动力叠加五大类进行仿真分析计算。
Abstract: Taking the spatial steel structure of the roller coaster track for large-scale amusement facilities as the research object, a simplified simulation model of the full-scale B31 spatial beam element is established based on the Abaqus finite element simulation platform. The structural mechanical performance research is carried out by comprehensively adopting multiple means such as modal analysis, dynamic calculation of moving wheel load, seismic time-history response analysis, and modal superposition transient dynamic analysis. Based on the “Code for Seismic Design of Buildings” (GB50011-2010), core input parameters such as site, fortification intensity, damping, and seismic acceleration were determined. Simulation analysis and calculation were carried out for five major categories: static bearing conditions, multistage mode extraction, horizontal seismic time-history excitation, load envelope of mobile trolley wheelsets, and transient dynamic superposition at large deformation nodes.
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