摘要
根据某矿用自卸车的翻车保护结构型式,建立翻车保护结构(简称ROPS)安全性能仿真的动态有限元模型。模拟现场试验的加载过程设计加载曲线,进行动力学求解运算。仿真结果显示ROPS侧向刚度过大导致能量吸收与侧向承载力匹配不良。针对该缺陷对翻车保护结构主要承载结构进行刚度改善并重新进行动力学求解运算,仿真结果表明优化后的ROPS侧向性能得到极大地改善,有效地保障了工程车辆的安全性。
Based on the roll-over protection structure model of certain large mining dump truck,the dynamic finite element model of the safety simulation of Roll-Over Protective Structure（ ROPS） is established. Loading curve is designed to smulate field test of loading process and dynamic solving arithmetic is done. The simulation results show that the lateral stiffness of ROPS is too large to bring the energy absorption and the lateral bearing capacity is mismatching. The stiffness improvement is operated on main bearing structure of ROPS and dynamic solving arithmetic is refreshed. The simulation results show that the lateral performance of optimized ROPS is greatly improved,which effectively guarantees the safety of engineering vehicles.
出处
《机械研究与应用》
2014年第3期26-29,共4页
Mechanical Research & Application
基金
国家高新技术研究发展计划(863计划)项目(编号:2012AA041805)
湖南省科技重大专项计划项目(编号:2010FJ1003-2)
关键词
有限元模型
加载曲线
侧向刚度
能量吸收
finite element model
loading curve
lateral stiffness
energy absorption
