Energy distributions in rods and beamsA hypothesis proposed by Nefske and Sung (1987) that the mechanical energy flow in acoustic/structural systems can be modeled using a thermal energy flow analogy was tested for both longitudinal vibration in rods and transverse flexural vibrations in beams. It was found that the rod behaves according to the energy flow analogy. However, the beam solutions behaved significantly differently than predicted by the thermal analogy, unless spatially averaged energy and power flow were considered. Otherwise, the beam analysis is restricted to frequencies where the near-field terms in the displacement solution are negligible over most of the beam.
Document ID
19890046385
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wohlever, J. C. (Purdue Univ. West Lafayette, IN, United States)
Bernhard, R. J. (Purdue University West Lafayette, IN, United States)