השוואת שיטות

	תיאוריית רצועות לניווט ימי	שיטת הולטרופ-מנן
תחום	תעופה וחלל	תעופה וחלל
משפחה	Process / pipeline	Process / pipeline
שנת המקור	1970	1982
הוגה השיטה	Salvesen, Tuck, Faltinsen	Jelte Holtrop, Gert Mennen
סוג	Analysis method	Prediction method
מקור מכונן	Salvesen, N., Tuck, E. O., & Faltinsen, O. (1970). Ship motions and sea loads. Journal of the Society of Naval Architects and Marine Engineers, 78(4), 250–287.	Holtrop, J., & Mennen, G. G. J. (1984). An approximate power prediction method for fast monohull ships. International Shipbuilding Progress, 29(335), 166–170.
כינויים	strip theory, 2D strip method, seakeeping prediction	Holtrop method, Mennen method, ship resistance prediction
קשורות	3	3
תקציר	Seakeeping strip theory is a method for predicting the dynamic motion of a ship in regular and irregular waves by decomposing the hull into two-dimensional transverse sections (strips) and computing the hydrodynamic forces on each strip. Developed by Salvesen, Tuck, and Faltinsen in 1970, the method efficiently estimates ship heave, pitch, and roll motions, accelerations, and loads without resorting to expensive three-dimensional computational fluid dynamics. Seakeeping analysis using strip theory is standard in ship design and operational planning.	The Holtrop-Mennen Method is an empirical regression-based technique for predicting total ship resistance from geometric parameters and operating conditions. Developed by Jelte Holtrop and Gert Mennen in 1982, the method decomposes total resistance into friction, pressure, wave-making, and form drag components, each estimated from ship dimensions, hull shape, and speed. Widely adopted in maritime engineering, the Holtrop-Mennen method remains the industry standard for preliminary ship design and propulsion power estimation.