Eccentric bushing for redundant pinning of removable panels

A system for transferring shear from panels to an underlying support structure comprising:

• an underlying support structure comprising a plurality of connecting pins attached thereto;
• a panel operable to be assembled to the underlying support structure, the panel comprising a plurality of openings corresponding to the plurality of connecting pins;
• and
• a plurality of eccentric bushing assemblies configured to be disposed in corresponding openings of the panel, each eccentric bushing assembly comprising:
• an outer eccentric bushing comprising a central axis, the outer eccentric bushing being operable to float axially, rotate circumferentially, and to move radially with respect to the central axis;
• an inner eccentric bushing disposed radially inward from the outer eccentric bushing and interfacing with the outer eccentric bushing, the inner eccentric bushing being operable to rotate relative to the outer eccentric bushing;
• and
• a spherical bushing comprising a through hole operable to receive one connecting pin of the plurality of connecting pins therein, the spherical bushing interfacing with the inner eccentric bushing and being operable to rotate in at least one degree of freedom that facilitates alignment of an axis of the one connecting pin with the through hole,
• wherein relative rotation of the outer eccentric bushing and the inner eccentric bushing facilitates the through hole of the spherical bushing to be radially positioned both centered and off-centered with respect to the central axis, and wherein:
• the outer eccentric bushing comprises an outer radial tapered surface, the outer radial tapered surface configured to interface with a corresponding tapered inner surface of the opening of the panel to limit radial movement of the outer eccentric bushing;
• and
• the corresponding tapered inner surface of the opening of the panel terminates at a seating surface of the panel perpendicular to the central axis, and wherein the relative rotation of the outer eccentric bushing and the inner eccentric bushing facilitates the through hole of the spherical bushing to be radially positioned in one of a centered and an off-centered position with respect to the central axis when the outer eccentric bushing and the inner eccentric bushing are seated against the seating surface.