Application of the Methodology for Quick Seakeeping Assessment of Warships for Helicopter Operations in Rough Weather

A methodology for quick seakeeping assessment of warships for helicopter operations at sea in rough weather was proposed by the authors during 17 th IBCAST. This paper presents application of the approach by assessing suitability of helicopter operations onboard four theoretical warships. Motion RAO...

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Bibliographic Details
Published in2021 International Bhurban Conference on Applied Sciences and Technologies (IBCAST) pp. 905 - 913
Main Authors Khalid, Hassan, Riaz, Zeeshan, Karayel, Hasan Baris, Donmez, Fatih
Format Conference Proceeding
LanguageEnglish
Published IEEE 12.01.2021
Subjects
helicopter operations
Helicopters
Loading
Marine vehicles
Meteorology
motion criteria
operability analysis
RAOs
seakeeping
Software
warships
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Summary:A methodology for quick seakeeping assessment of warships for helicopter operations at sea in rough weather was proposed by the authors during 17 th IBCAST. This paper presents application of the approach by assessing suitability of helicopter operations onboard four theoretical warships. Motion RAOs database has been developed for the four warships using a commercial seakeeping software. A VBA based code has been developed for MS Excel, which reads RAOs database, calculates motion RAOs for the actual loading condition, estimates motion statistics using response spectral moments for a combination of characteristic wave periods unit significant heights. Polar plots representing operability envelops are produced by the software duly considering the motion limitations imposed on helicopter operation by Bureau Veritas naval ship rules. Wave scatter data for North Atlantic, as per lACS recommendation no. 34, has been used to predict operability windows of the warships for helicopter operations on a worldwide-basis as a test case.
ISSN:2151-1411
DOI:10.1109/IBCAST51254.2021.9393273