| A time-space decomposition method for calculating the nearfield pressure generated by a pulsed circular piston. | |
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MedLine Citation:
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PMID: 16846147 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A time-space decomposition approach is derived for numerical calculations of the transient nearfield pressure generated by a circular piston. Time-space decomposition analytically separates the temporal and spatial components of a rapidly converging single integral expression, thereby converting transient nearfield pressure calculations into the superposition of a small number of fast-converging spatial integrals that are weighted by time-dependent factors. Results indicate that, for the same peak error value, time-space decomposition is at least one or two orders of magnitude faster than the Rayleigh-Sommerfeld integral, the Schoch integral, the Field II program, and the DREAM program. Time-space decomposition is also faster than methods that directly calculate the impulse response by at least a factor of 3 for a 10% peak error and by a factor of 17 for a 1% peak error. The results show that, for a specified maximum error value, time-space decomposition is significantly faster than the impulse response and other analytical integrals evaluated for computations of transient nearfield pressures generated by circular pistons. |
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Authors:
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James F Kelly; Robert J McGough |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural |
Journal Detail:
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Title: IEEE transactions on ultrasonics, ferroelectrics, and frequency control Volume: 53 ISSN: 0885-3010 ISO Abbreviation: IEEE Trans Ultrason Ferroelectr Freq Control Publication Date: 2006 Jun |
Date Detail:
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Created Date: 2006-07-18 Completed Date: 2006-08-08 Revised Date: 2013-06-11 |
Medline Journal Info:
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Nlm Unique ID: 9882735 Medline TA: IEEE Trans Ultrason Ferroelectr Freq Control Country: United States |
Other Details:
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Languages: eng Pagination: 1150-9 Citation Subset: IM |
Affiliation:
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Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Computer Simulation Computer-Aided Design* Equipment Design Equipment Failure Analysis Image Interpretation, Computer-Assisted / instrumentation*, methods* Models, Theoretical* Reproducibility of Results Sensitivity and Specificity Time Factors Transducers* Ultrasonography / instrumentation*, methods |
| Grant Support | |
ID/Acronym/Agency:
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5R01CA093669/CA/NCI NIH HHS; R01 CA093669/CA/NCI NIH HHS; R01 CA093669-03/CA/NCI NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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