飞机飞行载荷测量载荷方程的优选

 介绍用应变计方法测量飞机飞行载荷的载荷方程,应用方差分析和下检验技术进行优选,逐次剔除无应电桥和多余电桥,经自动计算,得到仅会对某种载荷有显著贡献的少量电桥的最优载荷方程,供飞行试验测量飞机飞行载荷使用。算例结果表明,此方法获得最优载荷方程有效。

THE OPTIMIZATION OF LOAD EQUATION DURING AIRCRAFT FLIGHT LOAD MEASUREMNT

This paper describes the load equation of measured aircraft in-flight load,using strain gauge method.Variance analysis and F-check technique are used;irrelevant strain gauge bridges and redundancy are dropped in order;by automatic computation,optimum load equa- tion is obtained which only concentrates on a few bridges of making significant contribution to the load,supplying a useful way of measuring aircraft flight load in flight test. The computed re- sults of the example show the method to be very effective to obtain an optimum load equation.