飞机大部件对接中的位姿计算方法

在飞机的大部件对接中,为了达到较高的对接精度,需要准确地分析大部件的位姿,因此大部件位姿计算方法是首先需要解决的问题.本文简要介绍了奇异值分解法、三点法、最小二乘法计算位姿,并以三点法计算的结果作为最小二乘法的初值.比较了3种方法在点无误差和有误差时的部件拟合误差,分析了测量点的个数对部件拟合误差的影响,讨论了误差对部...

Posture Calculating Algorithm in Large Aircraft Component Butt

To satisfy the requirement of automated alignment and joining of fuselage sections and wings in digital assembly for an aircraft,component's posture calculating method is the first question that should be considered.There are three methods which can be used in posture calculating:single value decomposition,three point method and least square method.Three point method's result is used as the least square's initial value.The fitting error of the lease square method is discussed from point's number and point's...