Influence of friction on a harmonically forced rotational oscillator in dry sand |
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| Authors: | Dr. H. Schmieg Prof. Dr. P. Vielsack |
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| Affiliation: | (1) Institut für Mechanik, Universität Karlsruhe, Postfach 6380, D-7500 Karlsruhe, Germany |
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| Abstract: | Summary The periodic motion of a body in dry sand is influenced by an unknown resistance in the contact surface. A rotational oscillator is used as measurement device to detect some basic principles. Hypotheses about the pseudo-constitutive laws for the interaction between sand and oscillator allow the calculation of a steady state motion. Experimental investigations confirm the theoretical assumptions and show the dominant influence of friction on the motion.With 9 Figures |
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