3pSA4. Vibration response statistics in regular and irregular plates.

Session: Wednesday Afternoon, May 15

Time: 1:15

Author: Christopher A. Hartemink
Author: Richard G. DeJong
Location: Eng. Dept., Calvin College, Grand Rapids, MI 49546


Statistical measures of the vibration response of flat plates in both the frequency and spatial domains are presented. Analytical, numerical, and experimental results are presented for rectangular and irregularly shaped plates. The results are consistent with the assumption that the modal response of a rectangular plate is sinusoidal, while the modal response of an irregularly shaped plate is Gaussian. The statistical measures of a plate vibration response can be used to evaluate the system modal overlap factor, the ratio of the modal damping bandwidth to the modal frequency spacing.

from ASA 131st Meeting, Indianapolis, May 1996