FLEXURAL VIBRATIONS OF BEAMS WITH FLEXIBLE BOUNDARY CONDITIONS,
Abstract
Because of the modern trend toward low-frequency sound sources, flexural vibrators, in the form of beams and plates, are finding widespread use in sonar applications. In order to effectively use these vibrators as efficient and reliable transducers, it is essential that the structures be mechanically stable, necessitating the use of support mechanisms. Therefore, a theoretical investigation was undertaken to determine the effects of non-ideal support conditions on the flexural vibrations of beams. The fundamental resonance, the mode shape, the stress distribution, and the effective electromechanical coupling coefficient ratio, based on an energy distribution in the composite structure, are derived for a practical transducer configuration employing a lead zirconate titanate (PZT-4) ceramic body. Variations in these parameters are described in a general sense in terms of the dimensions and material constants of the central ceramic section of the beam. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 04, 1967
- Accession Number
- AD0664482
Entities
People
- Charles L. Leblanc
Organizations
- Navy Underwater Sound Laboratory