Pemodelan Simulasi Drop Test Sebagai Evaluasi Kekuatan Lambung Kapal Aluminium

*Wisnu Adha Tri Nugraha  -  Departemen Teknik Perkapalan, Fakultas Teknik, Universitas Diponegoro, Indonesia
Ahmad Fauzan Zakki  -  Departemen Teknik Perkapalan, Fakultas Teknik, Universitas Diponegoro, Indonesia
Tuswan Tuswan  -  Departemen Teknik Perkapalan, Fakultas Teknik, Universitas Diponegoro, Indonesia

Citation Format:
Abstract

Aluminium merupakan material yang banyak digunakan dalam pembuatan kapal kecil karena sifatnya yang ringan, kuat, dan tahan terhadap korosi. Namun demikian, kapal berbahan aluminium memiliki keterbatasan dalam menahan beban benturan berulang yang terjadi akibat fenomena slamming saat beroperasi di perairan. Penelitian ini bertujuan untuk mengevaluasi kekuatan lambung kapal aluminium terhadap beban impak vertikal melalui simulasi drop test. Penelitian ini dilakukan dengan pendekatan metode elemen hingga (Finite Element Method) menggunakan perangkat lunak LS-DYNA. Model yang disimulasikan adalah kapal patroli tipe speedboat sepanjang 9 meter. Variasi kondisi diuji berdasarkan sudut kemiringan kapal terhadap permukaan air (0°, 5°, dan 15°) serta variasi ketinggian jatuh (0,5 meter dan 1 meter). Simulasi melibatkan interaksi antara struktur lambung kapal dengan fluida menggunakan pendekatan Arbitrary Lagrangian Eulerian (ALE). Hasil simulasi menunjukkan bahwa semakin tinggi ketinggian drop test, semakin besar tegangan efektif dan tekanan maksimum yang diterima lambung kapal. Tegangan efektif maksimum sebesar 644,70 KPa terjadi pada sudut 0° dengan ketinggian 1 meter, yang menjadi kondisi paling kritis. Tekanan maksimum sebesar 272,24 KPa tercatat pada sudut 5° bagian haluan pada ketinggian 1 meter. Dengan demikian, sudut dan ketinggian impak sangat memengaruhi respons struktural kapal, sehingga perlu diperhatikan dalam perancangan agar kapal mampu menahan beban akibat slamming secara optimal.

Fulltext View|Download
Keywords: Drop Test,;Slamming;Kapal Aluminium;Kekuatan Struktur
Article Info
Section: Articles
Language : EN
Recent articles
Pemodelan Simulasi Drop Test Sebagai Evaluasi Kekuatan Lambung Kapal Aluminium More recent articles
  1. H. Nakamura, H. Kayanuma, S. Kimura, and M. Kosugi, “A new process for small boat production based on aluminum hot-blow forming (ABF),” J Mater Process Technol, vol. 68, no. 3, pp. 196–205, 1997, doi: https://doi.org/10.1016/S0924-0136(96)00102-1
  2. M. Vézina and A. Firoozrai, “1 th International LS-DYNA ® Users Conference Drop Test into Water and Wave Impact Simulations of a Novel 7-Meter Plastic Boat with LS-DYNA ®.” [Online]. Available: www.SimuTechGroup.com
  3. K. Sungeun and N. Derek, “SLAMMING IMPACT DESIGN LOADS ON LARGE HIGH SPEED NAVAL CRAFT,” no. SupperFAST’2008, 2008
  4. J. Lv and J. L. Grenestedt, “Analytical study of the responses of bottom panels to slamming loads,” Ocean Engineering, vol. 94, pp. 116–125, Jan. 2015, doi: 10.1016/J.OCEANENG.2014.11.009
  5. ISO, “Small Craft-Hull Construction and scantling-Part 5 : Design pressures for monohulls, design stresses, scantling determination,” pp. 49–51, 2008
  6. S.-R. Lee, G.-J. Kang, and S.-S. Cho, “Evaluation of Structural Safety of Polyethylene Boats by Drop Test Method,” Journal of the Korea Academia-Industrial cooperation Society, vol. 18, no. 5, pp. 531–542, 2017, doi: 10.5762/KAIS.2017.18.5.531
  7. T. Lu, J. Wang, K. Liu, and X. Zhao, “Experimental and Numerical Prediction of Slamming Impact Loads Considering Fluid–Structure Interactions,” J Mar Sci Eng, vol. 12, no. 5, May 2024, doi: 10.3390/jmse12050733
  8. Q. Wang, P. Yu, G. Fan, and G. Li, “Experimental drop test investigation into cross deck slamming loads on a trimaran,” Ocean Engineering, vol. 240, Nov. 2021, doi: 10.1016/j.oceaneng.2021.109999
  9. X. Liu, F. Liu, H. Ren, X. Chen, and H. Xie, “Experimental investigation on the slamming loads of a truncated 3D stern model entering into water,” Ocean Engineering, vol. 252, May 2022, doi: 10.1016/j.oceaneng.2022.110873
  10. S. Ma et al., “Experimental study on the drop test on wet deck slamming for a SWATH segment model,” Ocean Engineering, vol. 285, Oct. 2023, doi: 10.1016/j.oceaneng.2023.115377
  11. H. Xie, X. Dai, F. Liu, and X. Liu, “Experimental study on the slamming pressure distribution of a 3D stern model entering water with pitch angles,” Ocean Engineering, vol. 291, Jan. 2024, doi: 10.1016/j.oceaneng.2023.116404
  12. Y. Ping, J. Wang, H. Xie, F. Liu, and X. Liu, “Experimental and CFD analysis: Effects of bottom appendages on the slamming characteristics of rigid hull structures during water entry,” Ocean Engineering, vol. 319, p. 120195, 2025, doi: https://doi.org/10.1016/j.oceaneng.2024.120195
  13. Y. Shan et al., “Experimental investigation of slamming pressure on 3D bow flare,” Ocean Engineering, vol. 312, Nov. 2024, doi: 10.1016/j.oceaneng.2024.118898
  14. H. Xie, X. Dai, H. Ren, and F. Liu, “Experimental characterization on slamming loads of a truncated ship bow under asymmetrical impact,” Ocean Engineering, vol. 284, p. 115195, 2023, doi: https://doi.org/10.1016/j.oceaneng.2023.115195
  15. A. F. Zakki, S. Suharto, D. M. Bae, and A. Windyandari, “Performance on the drop impact test of the cone capsule shaped portable tsunami lifeboat using penalty method contact analysis,” Journal of Applied Engineering Science, vol. 17, no. 2, pp. 233–244, 2019, doi: 10.5937/jaes17-19636
  16. Y. Yu, Y. Lin, and Z.-S. Ji, “New method for ship finite element method preprocessing based on a 3D parametric technique,” J Mar Sci Technol, vol. 14, pp. 398–407, Sep. 2009, doi: 10.1007/s00773-009-0058-1
  17. J. Lee and P. A. Wilson, “Experimental Study of the Hydro-Impact of Slamming in a Modern Racing Sailboat,” Journal of Sailboat Technology, vol. 1, no. 8, pp. 1–29, Apr. 2019

Last update:

No citation recorded.

Last update:

No citation recorded.