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A Heavy Truck-Infrastructure Interaction Model

机译：重型卡车与基础设施的相互作用模型

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摘要

The interaction between heavy trucks and pavement can take place in two different infrastructure scenarios: roads and bridges. A multitude of influential characteristics and properties linked to both the infrastructure and the vehicle determine the consequences of this interaction for the infrastructure and the vehicle, including the infrastructure damage arising from vehicle total forces, and vehicle damage due to their vibration as a result of road roughness. In this paper a computational scheme is proposed to simulate the dynamic vehicle-infrastructure interaction in the case of pavements and bridges. The computational transition matrix scheme considered, uses a common finite element formulation for both types of infrastructure, involving linear damped viscoelastic beams and bars in the case of the pavement, and linear damped elastic beams in the case of the bridge. Furthermore, an iterative process is formulated in such a way that the pavement and bridge responses are used to update the pavement profile that perturbs the vehicle. A parametric analysis reveals a close relationship between the maximum deflections obtained for both types of infrastructure, in which the infrastructure deflection increases with road roughness, short wheelbases, stiff suspensions and low speeds. On the other hand, the pavement temperature represents the most influential property for pavement deflection. The user interface created for the program includes the creation of ASCII data files containing the vehicle and pavement properties.
机译：重型卡车与人行道之间的相互作用可以发生在两种不同的基础设施场景中：道路和桥梁。与基础设施和车辆相关联的众多有影响力的特性决定了这种相互作用对基础设施和车辆的影响，包括由于车辆总力引起的基础设施损坏，以及由于道路振动引起的车辆振动造成的车辆损坏粗糙度。本文提出了一种计算方案来模拟人行道和桥梁情况下车辆与基础设施之间的动态相互作用。所考虑的计算过渡矩阵方案对两种类型的基础设施都使用通用的有限元公式，对于人行道而言涉及线性阻尼粘弹性梁和杆，对于桥梁而言涉及线性阻尼弹性梁。此外，以这样的方式制定了迭代过程，即使用路面和桥梁响应来更新扰动车辆的路面轮廓。参数分析揭示了两种基础设施所获得的最大挠度之间的密切关系，其中基础设施挠度随着道路崎,、短轴距，刚性悬架和低速而增加。另一方面，路面温度是影响路面挠度的最重要因素。为该程序创建的用户界面包括包含车辆和路面属性的ASCII数据文件的创建。

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