KAJIAN ANALISA TEORI PENGARUH BALLAST TERHADAP GERAKAN PITCH PADA KAPAL SELAM MINI 22M
Abstract
Sistem ballast merupakan salah satu sistem yang sangat penting dalam kapal selam. Pada kapal konvensional penggunaan ballast memberikan fungsi untuk menjaga stabilitas kapal, sedangkan pada kapal selam sistem ballast memegang peranan penting selain menjaga stabilitas dalam proses olah gerak kapal juga berperan sangat vital dalam proses menyelam maupun mengapung. Studi ini menggunakan model teori analiti dimana kapal selam yang dianggap merupakan benda pejal dan model bergerak secara bebas kemudian dilakukan analisa gerak pitching akibat ketika melakukan penyelaman. Floating Body Mechanism merupakan pengembagan gaya dasar berdasarkan teori dasar gaya. Pada kasus ini, kapal selam akan diberikan ballas sebesar 30% pada tangki balast. Makalah ini menjelaskan sebuah studi tentang teoritis dan pemodelan Analitik dalam CFD (Computational Fluid Dynamics).Gerakan Response Amplitude Operator (RAO) pitch adalah sebesar 7,3˚/m. Secara umum, kedua metode (model analitik dan model CFD) menunjukkan adanya tren yang sama, terutama dalam tren RAO yang konsisten.
Kata kunci: sloshing, floating body mechanism, kapal selam, RAO, pitch
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R.K.Burcher and L.J Rydill. 1995. Concepts in submarine design. CambridgeUniversity Press, 1995
Conte G. & Serrani A. 1996. Modelling and simulation of underwater vehicles. Proceedingsof the 1996 IEEE International Symposium on Computer-Aided Control System Design,pp. 62-67, Dearborn, Michigan, September 1996.
Rognebakke, O.F, Faltinsen, O.M. 2003. Coupling of sloshing and ship motions. Jour Ship Research 47, 208-221.
Journée, J., M., J. 1997. “Liquid Cargo and Its Effect on Ship Motion”. STAB’97 (Six Internationall Conference on Stability of Ships and Ocean Structures) page 137-150. Varna-Bulgaria, September 22-27, 1997
Xiong Xianwei,Wei Zhuobin,Xiang Chengan. Practical Stability of Submarine Motion under Sloshing Impacts[J]. Journal of Chongqing Jiaotong University(Natural Science), 2012, 31(3): 493-496.
Faltinsen O M,Rognebakke O F,Timokha A N. 2005. Resonant threedimensional nonlinear sloshing in a square-base basin.Part 2: Effect of higher modes[J].Journal of Fluid Mechanics,2005,23 (5):199-218
Lewis E.V (ed.), 1988 “Principles of Naval Architecture”,Second Revision. Society of Naval Architects andMarine Engineers (SNAME), Jersey City
JP Feldman. 1975. State-of-the-art for predicting the hydrodynamic characteristics of submarines. In Proceedings of the Symposium on Control Theory and Naval Applications, pages 87-127, 1975
E.D. Hoyt and F.H. Imlay, 1948.‘The Influence of Metacentric Stability on the Dynamic Longitudinal Stability of a Submarine’, David W. Taylor Model Basin Report C-158, October 1948
A.B. Phillips, S.R. Turnock, M. Furlong, 2010.‘Influence of Turbulence Closure Models on the Vortical Flow Field Around a Submarine Body Undergoing Steady Drift’, Journal of Marine Science and Technology, 15 (3) (2010), pp. 201–217.
Hermanski, G., 2007 “Victoria Class Submarine: 2D Investigation of Free Flow Phenomenon”. National Research Council of Canada – Institute of OceanTechnology Report TR-2007-12, April 2007.
S.L. Toxopeus, P. Atsavapranee, E. Wolf, S. Daum, R. Pattenden, R. Widjaja, J.T. Zhang, and A.G. Gerber, 2012.‘Collaborative CFD Exercise for a Submarine in a Steady Turn’, In ASME 31st International Conference on Ocean, Offshore and Artic Engineering, number OMAE2012-83573, Rio de Janeiro, Brazil, July2012
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