トリム固定方式動力計による高速艇の船型試験について

概要

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A test for high-speed boat forms is conducted by using a trim-fixed type of dynamometer which was devised by the authors. Three boat models are used, the mother boat is the so-called deep omega plane form of torpedo boat the bottom of which is flat in longitudinal direction, the other ones have longitudinally cambered (concave and convex) bottom. The characteristics of resistance, trim moment and rise of center of gravity are compared for the three boat models with trim fixed. The location of center of hydrodynamic force is obtained and the change of the point for the concave bottom boat is much less than the other boats. The performances of the boats towed with trim free are simulated by the data with trim fixed and they show a good agreement with the trim free resistance test. The trim angle of the concave bottom boat is about a half of the other ones and the resistance of the concave bottom boat with initial trim at 2° is less than ones of the others at high speed.
社団法人日本船舶海洋工学会の論文
1994-09-25