Assembly Variation Analysis of Aircraft Panels under Part-to-part Locating Scheme

Table 1

Tolerance schemes of parts and fixture.

Variation sources	Tolerance (mm)
	Fixture	Skin	Stringer	Clip	Sheet frame
Nonprimary datum locating DA hole/earhole ()		0.2	0.2	0.2	0.2
Located DA hole/earhole ()	0.07	0.4		0.4
Surface for locating ()		0.4	0.4	0.4	0.4
Surface for located ()	0.13	0.5		0.5
Surface for riveting ()		0.5	0.4	0.4	0.4
Surface for riveted ()		0.5		0.5
Surface for measuring ()		0.5