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Development of a Standard for the Health Hazard Assessment of Mechanical Shock and Repeated Impact in Army Vehicles Final Report: Summary of Phases 1 - 5
Development of a Standard for the Health Hazard Assessment of Mechanical Shock and Repeated Impact in Army Vehicles Final Report Summary of Phases 1 - 5 Author:James Morrison, Barbara Cameron, Daniel Robinson, George Roddan, Marguerite Springer This is a ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A339243. The abstract prov... more »ided by the Pentagon follows: This study was designed and conducted in five phases between July 1991 and July 1997. The primary objective was to develop a dose-effect model to predict, and ultimately minimize, the risk of injury to a soldier when exposed to the repeated shock environment of tactical ground vehicles (TGVs). Phase 1 reviewed over 1,200 relevant scientific, medical, and military papers. Phase 2 analyzed and characterized the vibration and shock environment of Army TGVs. Based on Phase 2, motion simulations were developed for the experimental phases. Phase 3, a pilot study, determined the most sensitive human response measures to mechanical shock and repeated impact. Phase 4 identified important factors (biomechanical, physiological, biochemical, and subjective responses to motion exposure) to include in the development of a health hazard assessment model. In Phase 5, a health hazard assessment method was developed for mechanical shock and repeated impact in Army vehicles. A series of models were developed and programmed into a graphical user interface to simplify the application the health hazard assessment models to measured seat accelerations. Together, these models predict the risk of injury based on fatigue failure theory.« less