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Impact Pressure Distribution Reconstruction from Discrete Point Measurements
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Naval Systems.ORCID iD: 0000-0002-8343-5098
2005 (English)In: International Shipbuilding Progress, ISSN 0020-868X, E-ISSN 1566-2829, Vol. 52, no 1, 91-107 p.Article in journal (Refereed) Published
Abstract [en]

The paper presents a method to reconstruct the momentary pressure distribution in hull-water impacts. Measurements of the propagating pressure pulse in one position of the hull at a particular time instant, are associated with measurements in other positions at other instants, by a set of assumptions and interpolation techniques. Hereby the complete pressure distribution can be reconstructed with the use of only a limited number of transducers. The method is evaluated with data from full-scale trials with a planing craft in waves. Reconstructed pressure distributions are applied as loads in a finite element model of the hull. The resulting structural responses are calculated and compared with corresponding structural measurements with good accuracy. This confirms that the reconstructed distributions well resembles the real distributions. The method offers a powerful tool to better handle impact pressure measurements, and enables more detailed experimental analysis of the phenomena. Areas of application are for example in full-scale design evaluations and in evaluations of time-domain simulations of loads and motions for planing craft in waves.

Place, publisher, year, edition, pages
2005. Vol. 52, no 1, 91-107 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-73351Scopus ID: 2-s2.0-17644424636OAI: oai:DiVA.org:kth-73351DiVA: diva2:488799
Note
QC 20120202Available from: 2012-02-02 Created: 2012-02-02 Last updated: 2017-12-08Bibliographically approved

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Rosén, Anders

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