摘要
针对目前高速公路钢制护栏造价较高、易腐蚀等缺点,开发了一种基于新型高分子复合材料的"三明治"夹层结构护栏来增强耐撞性。使用Hyperrnesh与LS-DYNA软件建立了"整车-护栏"有限元模型,通过仿真试验分析,对护栏结构进行了优化和改进设计,并通过实车碰撞试验测试,验证了优化后的高速公路半刚性新型护栏满足相关法规要求。
Considering that current highway guardrail is expensive and corrosive, the paper designed a new guardrail with ＂Sandwich＂ structure and made in composite materials to enhance the crashworthiness. Finite element models of the carriage and guardrail were established with Hypermesh and LS-DYNA. Then the structure parameters of the guardrail were optimized through the impact simulation. The results of the real vehicle crash test show that the new highway semi-rigid guardrail meets the regulatory requirements.
出处
《汽车工程学报》
2013年第4期262-268,共7页
Chinese Journal of Automotive Engineering
基金
国家自然科学基金项目(51105137)
河北廊坊力泰公司一直以来对本项目组的资助
