Energy absorbing link

摘要

An apparatus and method for a composite structural aircraft transmission support link having an integral energy-absorbing feature is disclosed. The link is a two-force member that can carry structural loads up an ultimate load. When loaded beyond ultimate load the design allows sections of the link to fail in a controlled and progressive manner, so that energy is absorbed over a defined stroking distance.

主权项

1. A two-force member energy-absorbing link structure comprising:
an elongated structural member having first and second opposing ends and a lengthwise extending central axis, wherein at least the first and second opposing ends of the elongated structural member are constructed of a primary material having a strength characteristic sufficient to link together two structures; a thru-hole extending substantially orthogonally with respect to the central axis and through the first opposing end; and a section of the elongated structural member constructed of secondary material having a lesser strength characteristic than the strength characteristic of the primary material, said section extending a lengthwise distance substantially along a direction that the lengthwise extending central axis extends, and said section extending from a location proximate and adjacent the thru-hole, wherein the section is configured to deform when exposed to a predetermined axial compression load, and wherein a length of the elongated structural member remains substantially the same before and after the section deforms.