装配式铝道面板结构力学响应分析

采用ANSYS有限元软件建立了多层弹性地基上装配式铝道面板道面结构的三维有限元模型,为装配式铝道面板道面结构的设计提供计算方法。同时,利用有限元模型计算所使用飞机在典型道面结构上的力学响应。分析发现道面板类型对力学响应影响不大,而道面板与基层间的接触状态影响较大,接触系数从0.01增至10时单双板的弯沉分别减少17.2%和9.9%,基层层底弯拉应力减少21.7%和27.1%,说明改善道面板与基层间状态至关重要。最后完成了现场承载板试验和通行试验,得到的试验结果验证了有限元模型的正确性,为同类型道面结构提供了分析计算方法。

An Analysis of Mechanical Response of the Aluminum Sandwich Panel

In order to provide a calculation method for the design of the sandwich panel structure, a three dimensional finite element model of the sandwich panel structure of multi layer elastic foundation is adopted by ANSYS. At the same time, the finite element model is utilized for calculating the mechanical response of the aircraft used in the typical pavement structure. The results show that the type of face plate has little effect on the mechanical response, and the contact status between the pavement and the base course greatly affects on it. The contact coefficient increases from 0.01 to 10, and the deflection of the single and double plates decreases by 17.2% and 9.9% respectively. At the same time, the tensile stress under the base is reduced by 21.7% and 27.1%. This shows that the improvement of the contact status between the pavement and the base is fatal. Finally the bearing plate test and pass test are completed. The experimental results verify the correctness of the finite element model, and provide the analytical method for the similar pavement structures.