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首页> 外文期刊>Journal of Transportation Engineering >Modeling and Simulation of Collisions of Heavy Trucks with Concrete Barriers
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Modeling and Simulation of Collisions of Heavy Trucks with Concrete Barriers

机译：带有混凝土护栏的重型卡车碰撞建模与仿真

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摘要

On-site collision tests of full-scale concrete barriers are an important method to understand what happens to concrete barriers when vehicles collide with them. However, such tests require both time and money, so modeling and simulation of collisions by computer have been developed as an alternative in this research. First, spring subgrade models were developed to formulate the ground boundary of concrete barriers based on previous experiments. Then, the finite element method models were developed for both heavy trucks and concrete barriers to simulate their dynamic collision performances. Comparison of the results generated from computer simulations and on-site experiments demonstrates that the developed models can be applied to simulate the collision of heavy trucks with concrete barriers, to replicate the movement of the truck at the collision, and to investigate the performance of the concrete barriers. The developed research methodology can be widely used to support the design of new concrete barriers and the safety analysis of existing ones.
机译：大型混凝土路障的现场碰撞测试是了解车辆与混凝土路障发生碰撞时发生的情况的重要方法。但是，这样的测试需要时间和金钱，因此已经开发了通过计算机进行碰撞的建模和仿真，作为本研究的替代方案。首先，在先前的实验基础上，开发了弹簧路基模型来制定混凝土屏障的地面边界。然后，针对重型卡车和混凝土屏障开发了有限元方法模型，以模拟它们的动态碰撞性能。通过计算机仿真和现场实验得出的结果的比较表明，所开发的模型可用于模拟重型卡车与混凝土护栏的碰撞，复制卡车在碰撞时的运动并研究其性能。具体的障碍。发达的研究方法可广泛用于支持新的混凝土屏障的设计和现有屏障的安全性分析。

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