| 影响护栏防护性能的相关因素研究 |
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| 引用本文： | 黄红武,莫劲翔,杨济匡,钟志华.影响护栏防护性能的相关因素研究[J].湖南大学学报(自然科学版),2004,31(2):45-47,59. |
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| 作者姓名： | 黄红武 莫劲翔 杨济匡 钟志华 |
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| 作者单位： | 1. 湖南大学,机械与汽车工程学院,湖南,长沙,410082
2. 湖南大学,机械与汽车工程学院,湖南,长沙,410082;查尔摩斯工业大学,汽车碰撞安全教研室,瑞典,哥德堡 |
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| 基金项目： | 国家自然科学基金资助项目 ( 5 0 0 75 0 2 4) |
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| 摘 要： | 采用计算机仿真的手段，运用有限元仿真软件LS-DYNA建立了圆柱形立柱形式的波形梁护栏的有限元模型，护栏的材料采用的是钢材，护栏板与立柱之间通过螺栓连接，基于这个模型，本文对轿车与护栏碰撞过程中影响护栏防护性能的摩擦系数以及护栏板与立柱之间的连接性能进行了研究，结果发现，通过减小摩擦力以及改变护栏板与立柱之间螺栓连接的临界失效载荷，可以提高事故中护栏对乘员的保护能力。
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| 关 键 词： | 高速公路 护栏 结构改进 有限元仿真 |
| 文章编号： | 1000-2472(2004)02-0045-03 |
Research on Correlative Factors of the Protective Performance of W-Beam Guardrail |
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| HHANG Hong-wu,MO Jin-xiang,YANG Ji-kuang,ZHONG Zhi-hua.Research on Correlative Factors of the Protective Performance of W-Beam Guardrail[J].Journal of Hunan University(Naturnal Science),2004,31(2):45-47,59. |
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| Authors: | HHANG Hong-wu MO Jin-xiang YANG Ji-kuang ZHONG Zhi-hua |
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| Institution: | HHANG Hong-wu1,MO Jin-xiang1,YANG Ji-kuang 1,2,ZHONG Zhi-hua1 |
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| Abstract: | LS-DYNA, a finite element (FE) analysis software were used to build the FE model of w-beam guardrail whose posts were columniform. The materials of beam and post were both steel, bolts were used to connect beams and posts. Based on the model, two factors, friction and the connection between beams and posts, which had effect on the protective performance of guardrail, had been studied. As a result, lowering the friction or changing the critical disable load of bolt can improve the protective performance of guardrail. |
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| Keywords: | highway median dividers and guard rails roadside improvement FE simulation |
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