Numerical Prediction of Head/Neck Response to Shock-Impact

A three-dimensional, 54 degree of freedom computer model of the head/neck system is presented. The model consists of a series of rigid bodies representing the bones and vertebrae together with springs and dampers representing the muscles, discs, ligaments, and joints. Equations of motion are written...

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Bibliographic Details
Main Authors: Huston,J C, Passerello,C E, Huston,R L
Format: Report
Language:English
Subjects:
ACCELERATION TOLERANCE
ALGORITHMS
ANGULAR MOTION
BIODYNAMICS
Computer Programming and Software
COMPUTER PROGRAMS
COMPUTERIZED SIMULATION
DEGREES OF FREEDOM
EQUATIONS OF MOTION
HEAD(ANATOMY)
IMPACT PREDICTION
IMPACT SHOCK
NECK(ANATOMY)
PREDICTIONS
RESPONSE(BIOLOGY)
Stress Physiology
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Summary:A three-dimensional, 54 degree of freedom computer model of the head/neck system is presented. The model consists of a series of rigid bodies representing the bones and vertebrae together with springs and dampers representing the muscles, discs, ligaments, and joints. Equations of motion are written for the model by using Lagrange's form of d'Alembert's principle. Computer algorithms are developed to numerically calculate the coefficients of these equations. The governing equations are then integrated numerically for a number of specific cases. The results agree very well with experimental data. (Author) Prepared in cooperation with Iowa State Univ., Ames. Dept. of Engineering, Science and Mechanics.