Material selection for acoustic radiators that are light and stiff

The headmass is a key element in tonpilz transducer design. As an acoustic radiator, a successful headmass must be built from a material that is both light and stiff. To assess the suitability of ceramics for this application, the authors used the mechanical properties of candidate materials to perf...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2011, Vol.129 (1), p.138-142
Main Authors: Porter, S. P., Markley, D. C., Van Tol, D. J., Meyer, R. J.
Format: Article
Language:English
Subjects:
Acoustics
Acoustics - instrumentation
Ceramics
Computer programs
Computer Simulation
Equipment Design
Exact sciences and technology
Flexing
Fundamental areas of phenomenology (including applications)
Materials selection
Materials Testing
Models, Theoretical
Numerical Analysis, Computer-Assisted
Physics
Pliability
Pressure
Radiators
Software
Square plates
Structural acoustics and vibration
Transducers
Transduction
acoustical devices for the generation and reproduction of sound
Vibration
Citations: Items that this one cites
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Description
Summary:The headmass is a key element in tonpilz transducer design. As an acoustic radiator, a successful headmass must be built from a material that is both light and stiff. To assess the suitability of ceramics for this application, the authors used the mechanical properties of candidate materials to perform a theoretical comparison based on the flexural behavior of square plates. Although not a comprehensive metric for identifying the best headmass materials, the headmass flexure may be usefully employed as a first-level selection criteria. A software routine based on thin plate and thick plate theory was created to evaluate the flexural behavior in candidate materials.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.3514420