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Basic Kinematics and Dynamics of the Humane Centrifuge and Other Aerospace Simulators, Including a Simple Explanation of Coriolis and Gyroscopic Effects

Report Number: AMRL TR 69-126
Author: Schueller, Otto
Author: Berner, Fred W.
Corporate Author: Aerospace Medical Research Laboratory
Laboratory: Aerospace Medical Research Laboratory
Date of Publication: 1970-05
Pages: 37
Contract: Laboratory Research - No Contract
Project: 7222
AD Number: AD0711635

This treatise is intended to familiarize medical and technical monitors of experiments on human centrifuges and other dynamic flight simulators with the various inertia effects produced by these facilities. It should fill the gap between the most elementary superficial explanations and the complicated derivations of these effects by abstract vector differential equations. The centrifugal, Coriolis, and gyroscopic effects are explained simply and in a manner that everybody interested in this field should be able to understand. These explanations will not be found in textbooks. The precession force is derived from the Coriolis force. Particular emphahsis is placed on showing that the usual equation for calculating the precession force on rotationally symmetric rigid bodies from the moment of inertia cannot be applied to the human body. On the human body the oscillatory character of the precession force must be considered and the precession precession force can be calculated separately for each of the body organs connected by soft tissue. Handy equations for slide rul use and computer programming are derived and their practical application is demonstrated by concrete examples. This approach should convey a deeper understanding of the close relationship between centrifugal, Coriolis and gyroscopic effects, and enable the medical monitor to calculate the inertia forces on the various body organs resulting from even more complex motions, such as tumbling, and predict their probable physiological effects. It should also assist the medical and technical monitors in careful planning and programming of the experiments, including the proper arrangement of the instrumentation

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