Super Cobra (AH-1Z) Human Vibration Evaluation
Abstract
The purpose of this investigation was to characterize and assess human vibration on board the Super Cobra (AH-1Z) helicopter. The study was conducted to support the U.S. Marine Corp (USMC) H-1 Upgrade Program for the UH-1N Huey and AH-1W Super Cobra. H-1 Crew Environment Survey at the request of the Naval Air Warfare Center Aircraft Division (NAWCAD). Human Systems Division (AIR 4.6). Triaxial acceleration measurements were made on the rigid seat. the interfaces between the occupant and cockpit seat pan and seat back. and on the helmet during selected flight conditions at both the aft and forward seat. The acceleration levels associated with specific frequency components of interest were evaluated. The vibration exposures were assessed in accordance with the International Standards Organization "Mechanical Vibration and Shock - Evaluation of Human Exposure to Whole-Body Vibration - Part I: General Requirements (ISO 2631-1: 1997) (1) with regard to comfort and health risk. The results indicated that exposure to vibration during operation of the Super Cobra (AH-1Z) is expected to cause aircrew discomfort to varying degrees. There was some indication that prolonged and repeated exposures may produce the potential for health risk in accordance with ISO 2631-1:
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 2005
- Accession Number
- ADB313268
Entities
People
- Suzanne D. Smith
Organizations
- Air Force Research Laboratory