| 汽车碰撞波形梁半刚性护栏的简化计算 |
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| 引用本文： | 许颖,王鹏. 汽车碰撞波形梁半刚性护栏的简化计算[J]. 深圳大学学报(理工版), 2012, 29(4): 364-370 |
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| 作者姓名： | 许颖 王鹏 |
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| 作者单位： | 1. 哈尔滨工业大学深圳研究生院,深圳,518055
2. 广州荣柏生建筑工程设计事务所,广州,510170 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 应用Newmark β法,对汽车碰撞半刚性护栏进行简化计算,解决碰撞过程中的非线性问题.分别对不考虑汽车转动和考虑汽车转动建立了简化模型,对汽车碰撞护栏进行时程分析.通过与LS-DYNA有限元模拟结果对比表明,考虑汽车转动的简化计算方法能较准确地对碰撞过程进行时程分析,帮助护栏设计人员更清楚了解碰撞过程和碰撞作用机理,有利于护栏的优化设计.
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| 关 键 词： | 结构力学 波形梁半刚性护栏 Newmark β法 综合刚度 时程分析 |
Simplified calculation method for car crashing wave-beam semi-rigid barrier process |
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| XU Ying , WANG Peng. Simplified calculation method for car crashing wave-beam semi-rigid barrier process[J]. Journal of Shenzhen University(Science &engineering), 2012, 29(4): 364-370 |
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| Authors: | XU Ying WANG Peng |
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| Affiliation: | 1) Shenzhen Graduate School,Harbin Institute of Technology,Shenzhen 518055,P.R.China 2) RBS Architecture Engineer Design Associates,Guangzhou 510170,P.R.China |
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| Abstract: | A simplified calculation method on the basis of Newmark β is used to solve the nonlinear problem during the car crashing wave-beam semi-rigid barrier process.Time-history analysis is carried out by the simplified models with and without considering rotational in-plane degree-of-freedom.Compared with the LS-DYNA finite element simulation,it shows that the simplified calculation method can provide accurate time-domain analysis for the collision process by considering two translational and one rotational in-plane degree-of-freedom.The simplified calculation method helps the barrier designer to understand the collision process more clearly and make the barrier design more reasonable. |
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| Keywords: | structural mechanics wave-beam semi-rigid barrier Newmark β integrated stiffness time-domain analysis |
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