蜂窝铝缓冲结构的仿真分析及应用研究
发布时间：2018-10-30 12:38
【摘要】：为得到具有良好耐撞性能的缓冲结构,提升车辆在碰撞中的安全性,以蜂窝铝为研究对象,建立了有限元模型,研究了不同壁厚参数的正六边形铝蜂窝结构的吸能特性,并进一步分析了截面尺寸对缓冲结构碰撞特性的影响,最终结合实际应用,给出了性能合格的缓冲结构方案。通过等效的台车测试,试验和仿真结果的基本一致,验证了有限元模型的正确性。研究结果表明,蜂窝铝缓冲结构能有效吸收车辆的碰撞动能,并降低碰撞过程中车辆的最大减速度,研究对车辆缓冲结构及其参数的选定有重要的参考意义。
[Abstract]:In order to obtain a buffer structure with good crashworthiness and enhance the safety of vehicles during collision, a finite element model was established to study the energy absorption characteristics of hexagonal aluminum honeycomb structures with different wall thickness parameters. Furthermore, the effect of section size on the impact characteristics of buffer structure is analyzed. Finally, the scheme of buffer structure with qualified performance is given in combination with practical application. The validity of the finite element model is verified by the equivalent test and simulation results. The results show that the honeycomb aluminum buffer structure can effectively absorb the collision kinetic energy of the vehicle and reduce the maximum deceleration speed of the vehicle during the collision process. The study has important reference significance for the selection of the vehicle buffer structure and its parameters.
【作者单位】： 华南理工大学机械与汽车工程学院;广东省汽车工程重点实验室;
【基金】：广东省科技计划项目(2015B010137002;2016A050503021)
【分类号】：U467.14;TG146.21
[Abstract]:In order to obtain a buffer structure with good crashworthiness and enhance the safety of vehicles during collision, a finite element model was established to study the energy absorption characteristics of hexagonal aluminum honeycomb structures with different wall thickness parameters. Furthermore, the effect of section size on the impact characteristics of buffer structure is analyzed. Finally, the scheme of buffer structure with qualified performance is given in combination with practical application. The validity of the finite element model is verified by the equivalent test and simulation results. The results show that the honeycomb aluminum buffer structure can effectively absorb the collision kinetic energy of the vehicle and reduce the maximum deceleration speed of the vehicle during the collision process. The study has important reference significance for the selection of the vehicle buffer structure and its parameters.
【作者单位】： 华南理工大学机械与汽车工程学院;广东省汽车工程重点实验室;
【基金】：广东省科技计划项目(2015B010137002;2016A050503021)
【分类号】：U467.14;TG146.21
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