Transverse Vibration of Uniform and Nonuniform, Internally Damped Cantilever Beams.
PENNSYLVANIA STATE UNIV UNIVERSITY PARK ORDNANCE RESEARCH LAB
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The driving-point impedances and transmissibilities of uniform cantilever beams in transverse vibration have been measured experimentally. Although the impedances were recorded with a commercial impedance head, the experimental procedures developed permitted measurements to be made through a far greater dynamic range than reported hitherto. The measured impedances of metal alloy beams compare closely with the predictions of theory. The transmissibility of an aluminum beam has been measured in three reciprocal experiments that successfully substantiated the theoretical prediction that extensive regions of attenuation occur in the transmissibility of a beam when it is driven by identical but suitably located dual forces, when it is mass loaded at a point intermediate to these dual forces, and when these forces originate from resilient mountings that support a force-excited mass. Author
- Structural Engineering and Building Technology