车辆相关ROPSROPS–法规–试验客车:Roll-Over Crashworthiness商用车——ECE R29-03-工信部官网于2019年7月8日发布消息,为适应我国商用车性能高速发展现状,不断提高商用车乘员保护技术要求,工业和信息化部装备工业司组织行业机构、重点企业等单位开展了强制性国家标准GB26512-2011的修订工作-《商用车驾驶室乘员保护》基本框架:结合我国实际现状,全面采用UN ECE R29(03系列)技术要求客户案例高度非线性场景材料本构试验&仿真Element Erosion仿真方法——FEM-精度高-建模和边界条件容易加载-大变形不易-删单元影响力和能量仿真方法——FEM—DEM/SPH仿真方法——SPGSPG Features• Galerkin framework: the same as the conventional FEM‐Numerically accurate and robust in solid and structure analysis‐Straightforward to reuse and couple with existing FEM models• Capable to deal with large material deformation‐No mesh distortion related numerical issues‐Time step size in explicit analysis is not decreased even in severe material deformation• Capable to model material failure without sacrificing the conservation‐No need to erode material so that the corresponding numerical issues in FEM can be案例Numerical Simulation of Rock Cutting with a Diamond Sawblade Based on LS-DYNASimulation of rock fragmentation induced by a tunnel boring machine disk cutter
总结
Ansys LS DYNA提供:-多种材料本构供客户选择-多种仿真方法及它们的组合-丰富、成熟的参考案例-更先进的CAE技术供客户应用和对标