Abstract
Both internal and external damping forces are introduced into equations for free transverse vibration of beams in air, and solutions to these equations are obtained by energy methods and digital computer. Predicted decrements of free vibration decay are then compared with experiments on cantilevers run in normal atmosphere and at reduced pressures, and with similar experiments by previous investigators. In this manner, the analytical techniques are verified, and considerable physical insight into the damping process is gained.
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