(5)--2.1 Accuracy Requirements for Ai飞机装配工艺学课件.ppt
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1、2.1Accuracy requirements for aircraft assemblyAccuracy requirements for aircraft assemblyAccuracy requirements for aircraft assembly1、Aerodynamic shape accuracy(1)Shape requirements(2)Profile waviness(3)Surface smoothness requirements2、Location accuracy of assemblies and partsPosition requirements f
2、or datum axis(deviation between actual assembly position and theoretical assembly position)3、Accuracy of relative positionsbetween components(1)Accuracy of wing to fuselage position(2)The accuracy of the position of each surface to the fixed wing surface(3)Accuracy of relative position between diffe
3、rent sections of fuselage(4)Accuracy of components1Aerodynamic shape accuracy of components 飞机各部件外形要求示例 架外按等距样板检查部件外形 架内按等距卡板检查部件外形Inspection methodInspection method2Surface smoothness requirements 表面平滑度要求示例(图中数字单位为mm)2Surface smoothness requirements The requirements of the Trident aircraft:The requ
4、irements of the Trident aircraft:Allowable clearanceUpper 7.01.9mmSide 4.41.9mmLower 3.82.5mmStep in fuselageConvex 2.5mmConcave 5.0mmLocation accuracy of assemblies 歼-7机翼与机身的连接Location accuracy of assembliesAxis deviation requirementBeam axis 0.5 1.0mmFrame axisFrame 1.0 2.0mmStrengthening frame 0.
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