用Kalman滤波理论对飞机成品安装孔距精度做最优估计

关于安装孔孔径和孔距误差的研究,对大量的飞机成品的安装十分重要。在保证飞机设计精度及协调互换的要求下,它对缩短飞机生产的总装配周期,缩短段件、板件、组件的装配周期,降低工时,减少工装费用都有很大的经济意义。 本文包括:

OPTIMUM ESTIMATION FOR ACCURACY OF DISTANCE BETWEEN MOUNTING HOLES FOR AIRCRAFT EQUIPMENT BY KALMAN FILTERING THEORY

Study on tolerances of diameters of mounting holes and distances between them is very important for installation of aircraft equipment.Also,it is of great economical significance in shortening the final assembly cycle of aircraft production and the assembly cycles for sections,panels or modules,and in reducing man-hours and tooling cost,while ensuring the aircraft design accuracy and interchangeability.The problems discussed in this paper are as follows:1.The dimensional tolerances of diameters of mounting holes and distances between them for aircraft equipment are investigated on the basis of Kalman filtering theory.The accuracy obtained is higher than that achieved with current statistical methods,and it is the most valuable that unmea-surable dimensions can be estimated by measurable ones;2.Optimum estimation of manufacturing accuracy achievable with current state of arts is provided;3.A new theoretical basis for establishment of error bands is proposed.