Abstract
Practical ships have different operating speeds, draft and trim in multiple load conditions. Therefore, in the hull form improvement, it is necessary to develop a different hull form in substance for every condition, from a viewpoint of hydrodynamics. The present paper proposes a hull form optimization method for reducing wavemaking resistance using the real-coded genetic algorithms in multiple load conditions. The real-coded genetic algorithm (GA) of the optimization method, employs the UNDX (Unimodal Normal Distribution Crossover) as a crossover operator, and employs the POSS (Pareto Optimal Selection Strategy) as a generation-alternation model. The hull form optimization for Series60 (CB=0.6) is carried out using the program that is based on the present method. In the optimization, many Pareto solutions are obtained. These hull forms have lower wave-making resistance with the panel-shift type Rankine source method on both the full load condition and the ballast condition, in comparison with the original hull form.
| Original language | English |
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| Title of host publication | 10th International Symposium on Practical Design of Ships and other Floating Structures, PRADS 2007 |
| Pages | 1050-1056 |
| Number of pages | 7 |
| Volume | 2 |
| Publication status | Published - Dec 1 2007 |
| Event | 10th International Symposium on Practical Design of Ships and other Floating Structures, PRADS 2007 - Houston, TX, United States Duration: Sep 30 2007 → Oct 5 2007 |
Other
| Other | 10th International Symposium on Practical Design of Ships and other Floating Structures, PRADS 2007 |
|---|---|
| Country/Territory | United States |
| City | Houston, TX |
| Period | 9/30/07 → 10/5/07 |
All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Ocean Engineering