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Improved models for runway debris lofting simulations
Imperial College London.
Imperial College London.
Imperial College London.
RISE - Research Institutes of Sweden, Material och produktion, SICOMP.ORCID-id: 0000-0002-2627-3280
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2009 (Engelska)Ingår i: Aeronautical Journal, ISSN 0001-9240, Vol. 113, nr 1148, s. 669-681Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Numerical models used to simulate the lofting mechanisms of runway stones were developed to assess the threat to aircraft structures from runway debris impacts. An inflated aircraft tyre model, which was validated by comparison with experimental indentation tests, showed that over-rolling of stones under typical take-off conditions led to only modest vertical loft velocities of less than 5 m/s. Experiments using a drop weight impactor simulated a section of aircraft tyre descending upon stones. These tests demonstrated that lofting was achieved for impacts with low rubber thickness. However, for impacts with greater rubber thickness, lofting was suppressed. Using more realistic tyre geometries resulted in launches with backspin, but only horizontally along the ground in the direction of the tyre axis. The speed at which launches occurred was proportional to the rate of descent of the tyre section and would consequently determine the loft speeds due to potential asperity lofting.

Ort, förlag, år, upplaga, sidor
2009. Vol. 113, nr 1148, s. 669-681
Nationell ämneskategori
Materialteknik
Identifikatorer
URN: urn:nbn:se:ri:diva-13181OAI: oai:DiVA.org:ri-13181DiVA, id: diva2:973377
Tillgänglig från: 2016-09-22 Skapad: 2016-09-22 Senast uppdaterad: 2019-06-28Bibliografiskt granskad

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http://aerosociety.com/News/Publications/Aero-Journal/Online/600/Improved-models-for-runway-debris-lofting-simulations

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Olsson, Robin

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