Abstract
The introduction of small or moderate damping forces into the theory of structural dynamics is based on the simple observation that any linear elastic system set into a free unloaded motion will harmonically oscillate in a characteristic modeshape which gradually decays until the system again is at rest. The preference of a harmonic modeshape is usually associated with the characteristic largest period (i.e. the lowest eigenfrequency) of the system, as this is its slowest possible free motion, and therefore it requires the least amount of energy exchange between inertia and stress fluctuations. The reason for the decay of the motion (diminishing of kinetic energy) is ascribed to damping forces within the system or between the system and its surrounding air or water.
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© 2014 Springer International Publishing Switzerland
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Strømmen, E.N. (2014). Damping. In: Structural Dynamics. Springer Series in Solid and Structural Mechanics, vol 2. Springer, Cham. https://doi.org/10.1007/978-3-319-01802-7_9
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DOI: https://doi.org/10.1007/978-3-319-01802-7_9
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-01801-0
Online ISBN: 978-3-319-01802-7
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