飞机漂浮性分析的ACN计算方法

摘要

给出了刚性和柔性两类铺砌道面下，由飞机所需的道面厚度计算ACN值的方法。对于刚性道面，给出了不同刚度的地基下计算ACN的公式和计算系数。经三种具有代表性的机型进行验算，验证了方法的准确性。对大量计算数据的分析表明，地基类型和地基强度对ACN计算方法有很大影响，若要准确计算飞机的ACN值，可对ACN计算系数进行插值扩展，得到计算系数关于地基刚度的多项式。应用方法对某型飞机的漂浮性进行评估，结果表明有一定的工程实际意义。%This research introduced the ACN calculation method for the rigid pavement and flexible pave-ment.For rigid pavement ,the formulas and coefficients to calculate the ACN for different subgrade stiff-ness are introduced .Three typical aircraft are used to verify the calculation method .The calculation re-sults indicates that the pavement type and subgrade strength affect the ACN calculation method to a large extent.In order to obtain the accurate ACN ,interpolating of calculation coefficient is used .Consequent-ly,the polynomial functions of pavement strength in terms of these coefficients are derived .This research evaluated an aircraft ground flotation performance .The result reflects the calculation method in this re-search is valuable in this area .