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Optimizations of Human Restraint Systems for Short-Period AccelerationA restraint system's main function is to restrain its occupant when his vehicle is subjected to acceleration. If the restraint system is rigid and well-fitting (to eliminate slack) then it will transmit the vehicle acceleration to its occupant without modifying it in any way. Few present-day restraint systems are stiff enough to give this one-to-one transmission characteristic, and depending upon their dynamic characteristics and the nature of the vehicle's acceleration-time history, they will either magnify or attenuate the acceleration. Obviously an optimum restraint system will give maximum attenuation of an input acceleration. In the general case of an arbitrary acceleration input, a computer must be used to determine the optimum dynamic characteristics for the restraint system. Analytical solutions can be obtained for certain simple cases, however, and these cases are considered in this paper, after the concept of dynamic models of the human body is introduced. The paper concludes with a description of an analog computer specially developed for the Air Force to handle completely general mechanical restraint optimization programs of this type, where the acceleration input may be any arbitrary function of time.
Document ID
19650075346
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Payne, P. R. (Frost Engineering Development Corp. Denver, CO, United States)
Date Acquired
August 2, 2013
Publication Date
January 1, 1963
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
ASME PAPER-63-WA-277
Accession Number
65N87749
Funding Number(s)
CONTRACT_GRANT: AF 33/657/-9514
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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