移动荷载作用下隔振沟隔振性能数值模拟分析
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摘要
基于动力学方程及波动理论,采用有限元软件ANSYS建立移动荷载-层状地基土的有限元模型,对移动荷载作用下隔振沟的隔振性能进行数值模拟分析。为了避免人工截断地基土边界造成波的反射对模拟结果的影响,在模型周围施加粘弹性人工边界条件。本文主要考虑隔振沟的深度和位置对其隔振性能的影响。分析总结振动的响应规律,为隔振沟隔振提供参考依据。
Based on the dynamic equation and the wave theory,use ANSYS finite element software to build moving loads-layered soil finite element model,conduct the isolation trench isolation performance's numerical simulation analysis under moving loads. In order to avoid the reflected wave by artificial truncation soil boundary to impact the simulation results,applying the viscoelastic artificial boundary conditions around the model. The article mainly consider the impact of the isolation trench's depth and position on its isolation performance. Analysis and summary the vibration's response law,provide a reference for empty trench isolation.
引文
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