某型飞机实测起落架着陆载荷谱分析

Analysis of usage landing gears loads spectrum for an aircraft’s landing gears

着陆撞击是飞机起落架最重要的载荷情况之一。通过实测数据分析得出某型飞机前、主起落架着陆撞击载荷谱,包括垂直载荷系数谱、起转与回弹载荷系数谱、侧向载荷系数谱及下沉速度谱等。并给出了一些载荷的特点及回归结果。此外,对起落架载荷测试方法亦进行了简单介绍。

Landing impact is one of the most important loading conditions of aircraft landing gears. In this article, landing load spectrum of an aircraft＇s nose landing gear and main landing gear was acquired through the analysis of actual measurement data. landing load spectrum includes vertical load spectrum, spin-up and spring-back load spectrum, side load spectrum and sink speed spectrum. Also the load characteristic and regression results were given. Besides these, the paper introduced the method of measuring landing gear load.