波音平整度评价方法的局限性分析

探究了我国机场道面平整度评价方法中新加入的波音平整度评价方法,提出了具体应用时的几点局限性.在介绍波音平整度评价方法的同时,开发波音平整度指数(Boeing Bump Index,BBI)的求解程序,并基于ADAMS/Aircraft平台,建立典型机型的虚拟样机模型,基于世界范围实测的37条机场跑道纵断面数据,分析了BBI指标和评价标准在某些方面存在的问题.结果表明,BBI指标不能有效处理跑道上存在的多个连续隆起的问题,而应辅以反应类的平整度评价指标综合评价,且最不利滑行速度、单一的评价指标和评价机型使得该方法的评价标准过于宽松,应适当修正.

Application Limitation of Boeing Bump to Evaluation Runway Roughness

Aiming at the situation that Boeing Bump will be the new method to evaluate airport pavement roughness in China, an analysis was made of the limitations to Boeing Bump''s application. Boeing Bump was introduced in detail and the procedure of Boeing Bump Index (BBI) was developed meantime, based on ADAMS/Aircraft, the virtual prototype of typical aircraft was modeled, and with the field longitudinal profiles of 37 runways around the world, some problems of BBI and its criteria were explored. The results show that BBI has no ability to deal with multiple bumps on the runway, and is supposed to combine with some reaction evaluation index; some reasons, including the most unfavorable taxiing speed, single evaluation index and single evaluation aircraft, will make the criteria too loose, and the criteria of BBI should be corrected appropriately.