An approach to estimating the hull girder response of a ship due to springing

Jang, Chang Doo; Jung, J. J.; Korobkin, A.A.

doi:10.1007/s00773-007-0242-0

Cited by 4 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, McGoldrick (1960) discusses beam theory for ship vibration analysis using a free-free beam, as do Bishop and Price (1979). More recently Timoshenko beam theory has been used by Jang et al (2007) to estimate steady state vibration of the hull girder in response to wave excitation in non-slamming conditions and by Dessi and Mariani (2008) to predict the structural response of a high speed monohull in slamming conditions. However, here the model is used to consider the effect that variations in the temporal distribution of the slam force have on the hull girder with a primary focus on the slam duration.…”

Section: Introductionmentioning

confidence: 99%

Effect of Slam Force Duration on the Vibratory Response of a Lightweight High-Speed Wave-Piercing Catamaran

McVicar¹,

Lavroff²,

Davis³

et al. 2015

Journal of Ship Research

View full text Add to dashboard Cite

When the surface of a ship meets the water surface at an acute angle with a high relative velocity, significant short duration forces can act on the hull plating. Such an event is referred to as a slam. Slam loads imparted on ships are generally considered to be of an impulsive nature. As such, slam loads induce vibration in the global hull structure which has implications for both hull girder bending strength and fatigue life of a vessel. A modal method is often used for structural analysis whereby higher order modes are neglected to reduce computational effort.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Slam Force Duration on the Vibratory Response of a Lightweight High-Speed Wave-Piercing Catamaran

McVicar¹,

Lavroff²,

Davis³

et al. 2015

Journal of Ship Research

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Slam Force Duration on the Vibratory Response of a Lightweight High-Speed Wave-Piercing Catamaran

McVicar

Lavroff

Davis

et al. 2015

Journal of Ship Research

View full text Add to dashboard Cite

When the surface of a ship meets the water surface at an acute angle with a high relative velocity, significant short-duration forces can act on the hull plating. Such an event is referred to as a slam. Slam loads imparted on ships are generally considered to be of an impulsive nature. As such, slam loads induce vibration in the global hull structure that has implications for both hull girder bending strength and fatigue life of a vessel. A modal method is often used for structural analysis whereby higher order modes are neglected to reduce computational effort. The effect of the slam load temporal distribution on the whipping response and vertical bending moment are investigated here by using a continuous beam model with application to a 112 m INCAT wave-piercing catamaran and correlation to full-scale and model-scale experimental data. Experimental studies have indicated that the vertical bending moment is dominated by the fundamental longitudinal bending mode of the structure. However, it is shown here that although the fundamental mode is dominant in the global structural response, the higher order modes play a significant role in the early stages of the response and may not be readily identifiable if measurements are not taken sufficiently close to the slam location. A relationship between the slam duration and the relative modal response magnitudes is found, which is useful in determining the appropriate truncation of a modal solution.

show abstract

Estimation of springing response for 550 000 DWT ore carrier

Adenya

Ren

et al. 2016

J. Marine. Sci. Appl.

View full text Add to dashboard Cite

An approach to estimating the hull girder response of a ship due to springing

Cited by 4 publications

References 8 publications

Effect of Slam Force Duration on the Vibratory Response of a Lightweight High-Speed Wave-Piercing Catamaran

Effect of Slam Force Duration on the Vibratory Response of a Lightweight High-Speed Wave-Piercing Catamaran

Effect of Slam Force Duration on the Vibratory Response of a Lightweight High-Speed Wave-Piercing Catamaran

Estimation of springing response for 550 000 DWT ore carrier

Contact Info

Product

Resources

About