BAND-PASS SHOCK ABSORBER STUDIES
Abstract
The principal objective of the program was to study the application of the band-pass principle to aircraft landing gear shock struts. The program included both theoretical and experimental evaluation. The first portion of the theoretical studies was devoted to the design and evaluation of a band-pass unit for the McDonnell F4H-1 MLG shock strut. The second part of the theoretical studies was the design and evaluation of a unit for the North American A3J-1 MLG shock strut. The experimental program consisted of the fabrication of a band- pass unit and modification of the A3J-1 shock strut to utilize it and the test program conducted in the drop test tower over the 120 inch dynamometer. The principal result or conclusion coming from the program is that loads arising from arresting cable impact, into the unsprung mass (tire, wheel, axle, and inner cylinder of shock strut) are not alleviated to any appreciable degree through use of the band-pass principle. The incremental increases in loads through the landing gear attach points into the aircraft structure, however, may be reduced up to 50%.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1964
- Accession Number
- AD0603749