The invention relates to the field of aircraft component assembly, in particular to a method for predicting and improving the mounting qualification rate of aircraft component machine surface connecting pieces, which is used for predicting and improving the mounting qualification rate of connecting pieces after independent drilling of a framework/skin, and comprises the following steps: determining a positioning relationship and an analysis object according to an actual skin structure size and an assembly relationship with the framework; establishing a nail hole matching mathematical model, theoretically analyzing a matching relation and determining an index for evaluating the installation qualification rate of the machine meter connecting piece; and performing tolerance analysis modeling, analyzing and determining main factors influencing the qualification rate, and providing a method for compressing a tolerance zone and adjusting the nominal size of the aperture to improve the mounting qualification rate of the connecting piece. And under the condition of comprehensively considering the machine tool precision and the drilling capability, the theoretical calculation installation qualification rate is ensured to be greater than or equal to 90%, so that the actual installation quality of the machine meter connecting piece is ensured.
本发明涉及飞机部件装配领域,尤其涉及一种预测并提高飞机部件机表连接件安装合格率的方法,用于预测并提高骨架/蒙皮独立制孔后连接件安装的合格率,分为根据实际蒙皮结构尺寸以及与骨架的装配关系,确定定位关系与分析对象;建立钉孔配合数学模型,理论上分析配合关系以及确定用于评价机表连接件安装合格率的指标;进行容差分析建模、分析,确定影响合格率的主要因素,提出压缩公差带和调整孔径名义尺寸的方法来提高连接件安装合格率。在综合考虑机床精度以及制孔能力情况下,保证理论计算安装合格率≥90%,从而保证实际机表连接件的安装质量。
Method for predicting and improving installation qualification rate of airplane part airplane meter connecting piece
一种预测并提高飞机部件机表连接件安装合格率的方法
2022-04-12
Patent
Electronic Resource
Chinese
IPC: | B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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