跑道
移动荷载
振动
刚度(电磁)
结构工程
孔力学
频域
傅里叶变换
波数
工程类
岩土工程
声学
数学
有限元法
物理
数学分析
历史
多孔介质
光学
考古
多孔性
作者
Chuxuan Tang,Zheng Lu,Hailin Yao,Shenglai Guo,Yongdian Han
标识
DOI:10.1142/s0219455421500656
摘要
The dynamic vibrations of airport runways induced by moving aircraft loads are semi-analytically studied in this paper. The airport runway consists of an infinite Kirchhoff plate, an elastic base course, and an unsaturated poroelastic half-space. The aircraft loads are modeled according to the mechanical properties of the main landing gear of the A380 civil airliner. The governing equations of the whole system are solved in the wavenumber domain using the double Fourier transform. Then the results in the spatial domain are obtained by applying the inverse double Fourier transform. Various parameters including the observation location, soil saturation, load speed, load frequency, and pavement rigidity on the vibration characters of the whole system are investigated. It is found that all these effects are crucial, and the increase of soil saturation leads to a larger maximum vertical displacement and lower critical speed.
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