Beamlike Dynamic Vibration Absorbers,
Abstract
The performance of several beamlike dynamic vibration absorbers is analyzed and, in one case, confirmed by experiment. The dynamic absorbers are employed to suppress the transmissibility at resonance across a simple mass-spring vibrator, a stanchion, and a simply supported rectangular panel. The absorbers comprise either single or double cantilever beams that are mass loaded at their free ends, or clamped-clamped beams that are centrally mass loaded. Generally, the beams provide both the absorber stiffness and damping--although, once, the beams are considered to possess little damping, and supplemental viscous damping is introduced by dashpots that link the absorber masses to the vibrating primary system of concern. Graphical or tabular design information is specified for the absorbers in each situation considered. Analyses are based throughout on the Bernoulli-Euler beam and thin-plate theories without simplification. In several of the situations analyzed, transmissibility curves are calculated to emphasize that the beamlike absorbers are broadly effective. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 17, 1977
- Accession Number
- ADA056099
Entities
People
- J. C. Snowdon
- M. A. Nobile
Organizations
- Pennsylvania State University