Comparison of measured and computed non-linear wave loads using a time domain method for an 86m catamaran

Davis, M. R.; Holloway, DS; Watson, N L

doi:10.1080/14484846.2006.11464503

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Such a technique can be combined with seakeeping codes for high speed catamarans such as those developed by Davis et al [16,17] to identify slamming occurrences in random waves as a consequence of extreme relative motion [18].…”

Section: Introductionmentioning

confidence: 99%

Wet-deck slamming loads and pressures acting on wave piercing catamarans

Shabani

Lavroff

Holloway

et al. 2019

ISP

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BACKGROUND: The wet-deck height and centre bow configuration in wave piercing catamarans are critical design factors which influence slamming occurrence and severity. OBJECTIVE: In this paper, the wet-deck slamming loads and pressures acting on a 112 m catamaran with a centre bow were investigated in regular waves in two wave heights. METHODS: A 2.5 m hydroelastic model with three alternate configurations of wet-deck vertical clearance was tested at a speed of 2.89 m/s (38 knots full-scale equivalent). RESULTS: The results showed that at the instant of slamming the centre bow immersion depth relative to the undisturbed incident wave elevation was less than two thirds of the maximum immersion depth during the wet-deck slam event. The location of maximum slamming pressure was found to be in the range between 77% and 80% of the overall length from the transom. The relationship between the relative velocity at impact and slamming force indicated that slamming loads in the order of the vessel weight can occur for the parent design when the relative velocity at slam is about a quarter of the forward speed. CONCLUSIONS: Overall, increasing the wet-deck height was more beneficial for reduction of slamming loads and pressures in smaller waves than in large waves.

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Section: Introductionmentioning

confidence: 99%