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对于机场道面的平整性,目前国内外相关标准仅做了一般性规定,而未根据不同部位的重要性加以区分;实际上相同的不平整程度在飞机的不同滑行状态下导致的颠簸效果有很大的差别。针对这一问题,采用飞机整机模型建立飞机-道面振动方程,基于该振动方程构建了不均匀变形道面的Simulink仿真评价系统;以飞机竖向加速度0.4g作为评价标准,利用上述仿真评价系统求解在不同平整程度道面上的振动响应,选取飞机滑行时的三个代表速度分别为0.2v_0、0.5v_0和0.8v_0。分析结果表明:0.2v_0、0.5v_0和0.8v_0三种代表速度在3 m最不利波长条件下,其最大允许变形波幅分别为0.05 m、0.027 m和0.023 m;该结论可以为分析道面不同部位平整程度提供重要依据。
For the formation of the airport pavement, the relevant standards at home and abroad only made general provisions, but not according to the importance of different parts to be distinguished; in fact the same degree of unevenness in the plane of the different taxiing caused by the bumpy effect Very different. In order to solve this problem, the aircraft-pavement vibration equation is established by using the complete airplane model. Simulink simulation evaluation system of uneven deformation pavement is constructed based on the vibration equation. Taking the aircraft vertical acceleration 0.4g as the evaluation standard, The system solves the vibration response of pavements with different flatness, and selects the three representative velocities of 0.2v_0, 0.5v_0 and 0.8v_0 respectively when taxiing. The results show that the maximum allowable deformation amplitudes of the three representative velocities of 0.2v_0, 0.5v_0 and 0.8v_0 are 0.05 m, 0.027 m and 0.023 m respectively under the 3 m worst wavelength condition. This conclusion can be used to analyze the different parts of the pavement, Leveling provides an important basis.