선택한 단어 수는 입니다.
최소 단어 이상 선택하여야 합니다.
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선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- The resistance performance test and self-propulsion test were performed.
- The second approach is to directly handle the original hull-form by modifying a ship lines which consists of a body plan, a sheer plan and a half breadth plan. However, this method requires a great deal of computation time in the optimization process and has a critical drawback in that the fairness of the generated hull-form cannot always be guaranteed.
대상 데이터
- The model test was carried out in a towing basin at Pusan National University in South Korea which has a length of 100 m and the width is 8 m and the depth is 3.5 m.
이론/모형
- Table 2 shows the main measurements of the original hull and the optimized hull. The conversion from the model to the ship was made according to the 1978 ITTC performance prediction method. The form factor (1+k) was determined by Prohaska’s method.
- The method has a theoretical basis that is related to the solution of a set of non-linear equations using Newton's method, and the derivation of simultaneous non-linear equations using Karush-Kuhn-Tucker conditions to the Lagrangian of the constrained optimization problem.
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