飞机漂浮性分析的ACN计算方法  

ACN Calculation Method of Aircraft Ground Flotation Analysis

作　　者：章少然 周小丹[1] 陶小将[1] 柳刚[1] 

机构地区：[1]中航工业第一飞机设计研究院,陕西西安710089

出　　处：《航空计算技术》2016年第5期85-88,91,共5页Aeronautical Computing Technique

基　　金：工信部2015民机专项资金项目资助(MJ-2015-F-023)

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 pavement. 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 results 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.

关 键 词：漂浮性 道面厚度 地基强度 

分 类 号：V351.1[航空宇航科学与技术—人机与环境工程]