Investigation of an Aluminum Rolling Helix Crash Energy Absorber.
Abstract
This report covers an investigation of various aluminum alloy wires suitable for a rolling helix energy absorber strut (TOR-SHOK) for use in crashworthy troop seats. Several aluminum alloy wire types were investigated to determine the linear stroking distance that the device could endure prior to the breaking of the helical wires, and to ascertain compatibility with the 6061-T6 aluminum tubes that are used as the struts to transmit the impact forces into the energy-absorbing helical wires. Once the wire was selected, several struts were fabricated and tested. In addition, two units were subjected to environmental tests, in accordance with Military Standard 810B, and were statically tested after the environmental tests. This study indicated that the most compatible aluminum wire to be used with the 6061-T6 aluminum tubing is the 5056-H38 series aluminum wire. The devices, after being subjected to the environmental tests, as performed the same as those devices that were not subjected to the environmental tests. This was primarily a result of properly anodizing and sealing the aluminum tubing.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1977
- Accession Number
- ADA042084
Entities
People
- Bernard Mazelsky