Accession Number : ADA304697

Title :   Evaluation of an Energy Absorbing Truck Seat for Increased Protection from Landmine Blasts.

Descriptive Note : Final rept.,

Corporate Author : ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL

Personal Author(s) : Alem, Nabih M. ; Strawn, Gregory D.

PDF Url : ADA304697

Report Date : JAN 1996

Pagination or Media Count : 63

Abstract : Mine blast resistant kits, developed by the Night Vision and Electronic Sensors Directorate (NVESD), are designed to enhance the survivability of the crew of military 5-ton trucks. The kit includes an energy-absorbing (EA) seat which is the focus of this report. A full-scale demonstration mine blast of a 5-ton truck was conducted using the full protection kit and included two anthropomorphic manikins to represent the passenger and driver. Only the passenger manikin was seated in the EA seat, while the driver manikin was seated in a standard seat. This report presents the analysis of test data performed by the U.S. Army Aeromedical Research Laboratory (USAARL). Results show the standard seat produced lumbar (lower back) spine compression of 2159 lbs, a value that exceeds the 1500-lb threshold generally used in spinal injury assessment. On the other hand, the EA prototype seat limited the compression of the lower spine to about 1329 lbs, a value which is below injury thresholds. The report concludes that NVESD mine protection kit reduced upward truck accelerations transmitted to the truck occupants and eliminated head contact injuries, and the EA seat reduced lumbar spine compressive forces by 3S percent to a level below tolerance threshold.

Descriptors :   *WOUNDS AND INJURIES, *BLAST, *TOLERANCES(PHYSIOLOGY), *SEATS, *ENERGY ABSORBERS, TEST AND EVALUATION, VELOCITY, SIGNAL PROCESSING, ARMY RESEARCH, RISK, SURVIVABILITY, DEMONSTRATIONS, THRESHOLD EFFECTS, RESISTANCE, MILITARY VEHICLES, MINE COUNTERMEASURES, DISPLACEMENT, PROTOTYPES, EXPLOSION EFFECTS, PROTECTION, INSTRUMENTATION, TRUCKS, HEAD(ANATOMY), THRESHOLDS(PHYSIOLOGY), LAND MINES, PASSENGERS, DIGITAL FILTERS, ANTHROPOMETRY, SPINAL COLUMN, PELVIS, MEDICAL LABORATORIES, ACCELERATION TOLERANCE, AVIATION MEDICINE, DRIVERS(PERSONNEL), NECK(ANATOMY).

Subject Categories : Anatomy and Physiology
      Medicine and Medical Research
      Land Mine Warfare
      Explosions
      Protective Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE