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	Teoria delle strisce per il moto ondoso (Seakeeping Strip Theory)	Teoria dell'Elemento di Pala e della Quantità di Moto
Campo	Aerospaziale	Aerospaziale
Famiglia	Process / pipeline	Process / pipeline
Anno di origine	1970	1889
Ideatore	Salvesen, Tuck, Faltinsen	William Froude, Heinrich Glauert
Tipo	Analysis method	Analysis method
Fonte seminale	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.	Froude, W. (1889). On the elementary relation between pitch, slip, and propulsive efficiency. Transactions of the Institution of Naval Architects, 30, 94–103.
Alias	strip theory, 2D strip method, seakeeping prediction	BEM theory, rotor performance prediction, actuator disk method
Correlati	3	3
Sintesi	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.	Blade element momentum theory (BEM) is a fundamental method for analyzing rotor performance by combining blade element aerodynamics with momentum conservation. Developed initially by Froude and refined by Glauert and Leishman, BEM decomposes a rotor into radial blade elements, computes local aerodynamic forces, and sums contributions to predict total thrust, torque, power, and efficiency. BEM is standard for helicopter, wind turbine, and propeller design.