This paper describes the design of a thin plate whose thickness is tailored in order to focus bending waves to a desired location on the plate. Focusing is achieved by smoothly varying the thickness of the plate to create a type of lens, which focuses structure-borne energy. Damping treatment can then be positioned at the focal point to efficiently dissipate energy with a minimum amount of treatment. Numerical simulations of both bounded and unbounded plates show that the design is effective over a broad frequency range, focusing traveling waves to the same region of the plate regardless of frequency. This paper also quantifies the additional energy dissipated by local damping treatment installed on a variable thickness plate relative to a uniform plate.
Skip Nav Destination
ASME 2012 Noise Control and Acoustics Division Conference at InterNoise 2012
August 19–22, 2012
New York City, New York, USA
Conference Sponsors:
- Noise Control and Acoustics Division
ISBN:
978-0-7918-4532-5
PROCEEDINGS PAPER
Design of a Variable Thickness Plate to Focus Bending Waves
Noah H. Schiller,
Noah H. Schiller
NASA Langley Research Center, Hampton, VA
Search for other works by this author on:
Sz-Chin Steven Lin,
Sz-Chin Steven Lin
The Pennsylvania State University, University Park, PA
Search for other works by this author on:
Randolph H. Cabell,
Randolph H. Cabell
NASA Langley Research Center, Hampton, VA
Search for other works by this author on:
Tony Jun Huang
Tony Jun Huang
The Pennsylvania State University, University Park, PA
Search for other works by this author on:
Noah H. Schiller
NASA Langley Research Center, Hampton, VA
Sz-Chin Steven Lin
The Pennsylvania State University, University Park, PA
Randolph H. Cabell
NASA Langley Research Center, Hampton, VA
Tony Jun Huang
The Pennsylvania State University, University Park, PA
Paper No:
NCAD2012-1330, pp. 537-544; 8 pages
Published Online:
September 10, 2013
Citation
Schiller, NH, Lin, SS, Cabell, RH, & Huang, TJ. "Design of a Variable Thickness Plate to Focus Bending Waves." Proceedings of the ASME 2012 Noise Control and Acoustics Division Conference at InterNoise 2012. ASME 2012 Noise Control and Acoustics Division Conference. New York City, New York, USA. August 19–22, 2012. pp. 537-544. ASME. https://doi.org/10.1115/NCAD2012-1330
Download citation file:
25
Views
Related Proceedings Papers
Related Articles
Response Analysis of a Truss-Pontoon Semisubmersible With Heave-Plates
J. Offshore Mech. Arct. Eng (May,2006)
Wave Characteristics and Vibration Control of Translating Beams by Optimal Boundary Damping
J. Vib. Acoust (January,1999)
Simulating and Measuring Structural Intensity Fields in Plates Induced by Spatially and Temporally Random Excitation
J. Vib. Acoust (October,2005)
Related Chapters
The Marketing Research of DSC Viewfinder Technology
International Conference on Advanced Computer Theory and Engineering, 4th (ICACTE 2011)
The future state of content & competency-based engineering education: Lean Engineering Education
Lean Engineering Education: Driving Content and Competency Mastery
Development of a Two-Stage Solar Concentrator Using Fresnel Lens and Dish Reflector
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)