경항모 내항성능 평가 연구
Evaluation of Seakeeping Performance of an Light Aircraft Carrier
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
In this study, a combined seakeeping performance evaluation method has been developed for the design purpose of the light aircraft carrier CVX of Korean Navy. A frequency domain analysis method was developed for evaluation of safe operating envelope up to sea state 6, while a time domain analysis method was developed for survival condition of sea state 7 and higher. The frequency-domain solver AdFLOW-Navy was developed by adding empirical formula of roll damping and fin-stabilizer to the existing AdFLOW by KRISO, which was based on the three-dimensional higher order boundary element method (HOBEM). For the estimation of the roll damping coefficient, a two-dimensional cross-section was automatically extracted from the three-dimensional panel, and the roll damping coefficient was analyzed for the two-dimensional cross-section. As for the time domain analysis method, KIMAPS-Navy was developed by improving and expanding the KIMAPS series developed by KRISO which is based on the impulse response function by utilizing the hydrodynamic coefficients obtained from the AdFLOW-Navy. In addition, a weakly nonlinear analysis approach was applied to analyze highly nonlinear motion under heavy sea states. Finally numeraical analysis results were compared with model tests, which showed practical usefulness of the present combined seakeeping analysis approach.
Abstract
In this study, a combined seakeeping performance evaluation method has been developed for the design purpose of the light aircraft carrier CVX of Korean Navy. A frequency domain analysis method was developed for evaluation of safe operating envelope up to sea state 6, while a time domain analysis method was developed for survival condition of sea state 7 and higher. The frequency-domain solver AdFLOW-Navy was developed by adding empirical formula of roll damping and fin-stabilizer to the existing AdFLOW by KRISO, which was based on the three-dimensional higher order boundary element method (HOBEM). For the estimation of the roll damping coefficient, a two-dimensional cross-section was automatically extracted from the three-dimensional panel, and the roll damping coefficient was analyzed for the two-dimensional cross-section. As for the time domain analysis method, KIMAPS-Navy was developed by improving and expanding the KIMAPS series developed by KRISO which is based on the impulse response function by utilizing the hydrodynamic coefficients obtained from the AdFLOW-Navy. In addition, a weakly nonlinear analysis approach was applied to analyze highly nonlinear motion under heavy sea states. Finally numeraical analysis results were compared with model tests, which showed practical usefulness of the present combined seakeeping analysis approach.
참고문헌 (22)
- Cho, S. K., "Experiment and simulation study on performance evaluation and design of f in-stabilizer", Journal of the Society of Naval Architects of Korea, 41(6), pp.1~7 (2004)
- Cho, S. K., "Seakeeping performance mo del test technology of an aircraft carrier", The Korean Asso ciation of Ocean Science and Technology Societies (2024)
- Choi, Y. M., "An alternative ex pression of the time domain free surface green function for deep water", Ocean Engineering, 267, pp.113267~ (2023)
- Comstock, E. N., "Seakeeping by de sign", Naval Engineers Journal, 92(2), pp.157~178 (1980)
- Comstock, E. N., "Seakeeping performance comparison of air capable ships", Naval Engineers Journal, 94(2), pp.101~117 (1982)
- The Impulse response function and ship motion, "Cummins, W. E.", Hydromechanics Laboratory, Research and Development, ~ (1962)
- Falzarano, J., "An overview of the prediction methods for roll damping of ships", Ocean Systems Engineering, 5(2), pp.55~76 (2015)
- Hong, S.Y, "A study on Short-Take and Vertical Landing(STO VL) performance evaluation of a light aircraft carrier and a consistent analysis of Safe Operating Envelope (SOE)", Jour nal of the Society of Naval Architects of Korea, 61(2), pp.126~135 (2024)
- Ikeda, Y., "Components of roll damping of ship at forward speed", Journal of the socie ty of Naval Architects of Japan, 143, pp.113~125 (1978)
- International Towing Tank Conference, "Recomm ended Procedures ans Guidelines – Numerical Estimation of Roll Damping (7.5-02-07-04.5)", 1~32 (2011)
- Kato, H., "On the frictional resistance to the rolling of s hips", Journal of Zosen Kiokai, 102, pp.115~122 (1958)
- Kim, B., "Steady flow approximations in t hree-dimensional ship motion calculation", Journal of Ship Research, 51(3), pp.229~249 (2007)
- Kim, K. H., "Numerical analysis of added r esistance on ships by a time-domain rankine panel metho d", Journal of the Society of Naval Architects of Korea, 47(3), pp.398~409 (2010)
- Kim, K. H., "Comparative study on ship hy drodynamics based on Neumann-Kelvin and double-body li nearizations in time-domain analysis", International Journal of Offshore and Polar Engineering, 20(04), pp.265~274 (2010)
- Lee, J. H., "Study on steady flo w effects in numerical computation of added resistance of ship in waves", Journal of Advanced Research in Ocean En gineering, 3(4), pp.193~203 (2017)
- Lloyd, A. R. J. M., "Seakeeping philosophical transaction s of the royal society of London", Series A: Physical and En gineering Sciences, 334(1634) (1991)
- Newman, J. N., "The theory of ship motions", Advances in applied mechanics, 18, pp.221~283 (1979)
- North Atlantic Treaty Organization, "Common pro cedures for seakeeping in the ship design process, standar dization agreement, STANAG 4154 NAV(Edition 3)", ~ (2000)
- Salvensen, E.O, "Ship motions and sea loads", Transactions of the Society of Naval Architects and Marine Engineers, 78, pp.250~287 (1970)
- Science Applications International Corporation, "Nonlinear 3D Seakeeping and Load Prediction Program, Ann apolis, Maryland, USA", ~ (2006)
- Schmitke, R. T., "Ship sway, roll, and yaw motions in oblique seas", SNAME Transactions, 86, pp.26~46 (1978)
- Seo, M. G., "Comparative study on added resistance for different hull forms by using weakly-nonlinear seakeeping formulations", Journal of the Society of Naval Architects of Korea, 50(1), pp.49~58 (2013)