skip to main content

Experimental Investigation of Bow Slamming on a Ship: The Effect of Weight and Impact Angle

*Suandar Baso  -  Department of Naval Architecture, Faculty of Engineering, Hasanuddin University, Indonesia
Andi Nadia Himaya  -  Department of Transportation and Environmental System, Faculty of Advanced Science and Engineering, Hiroshima University, Japan
Faizal Arya Samman  -  Department of Electrical Engineering, Faculty of Engineering, Hasanuddin University, Indonesia
Andi Dian Eka Anggriani  -  Department of Naval Architecture, Faculty of Engineering, Hasanuddin University, Indonesia
Rosmani Rosmani  -  Department of Naval Architecture, Faculty of Engineering, Hasanuddin University, Indonesia
Open Access Copyright (c) 2021 Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan under

Citation Format:
Cover Image
The impact pressure induced by slamming can imply physical damage on a ship. The high probability of the slamming impact is on the bow part in the actual sea state. In this present study, the slamming induced pressure on the bow flare of a ship have been investigated through the experiment. The experiment was schemed by the dropping test based on free-falling body in the wave tank, wherein the bow of the ship model was inclined in several impact angles 0° to 30° to the free-water surface. To measure slamming impact pressure acting on the bow flare, the piezoelectric sensors S1, S2, S3, S4 were attached to the bow section and installed on a computer. As the obtained results, the impact pressure on bow flare occurred in a short time duration caused by slamming. The discrepancy of the peak impact pressure between ship model weight of 2.42 kg and 7.29 kg for the impact angle 0° is 70.36% S1, 69.52% S2, 68.97% S3, and 68.34% S4. For the relative impact angle of 30°, the discrepancy is 67.02% S1, 65.73% S2, 58.51% S3, and 48.21% S4. The tendency of the peak pressure coefficient at the sequenced impact points S1, S2, S3, S4 is similar for all impact angles 0°, 10°, 20°, and 30°. The peak pressure coefficient due to the full load condition is highest in the nearest bottom part, and the peak pressure coefficients due to the lightship condition highest in the nearest bottom part caused by the small impact angle.
Fulltext View|Download
Keywords: Bow Slamming; Dropping Test; Impact Pressure; Peak Pressure Coefficient

Article Metrics:

  1. T. von Karman, "The Impact on Seaplane Floats During Landing," Technical note, National Advisory Committee for Aeronautics, No. 321, pp. 309-313, 1929
  2. H. Wagner, “Uber Stossund Gleitvergange an der Oberflache von Flussigkeiten,” Zeitschrift fuer Angewandte Mathematik und Mechanik, vol. 12, pp. 193-215, 1932
  3. A. Tassin, N. Jacques, A. Alaoui, A. Neme and B. Leble, "Assessment and Comparison of Several Analytical Models of Water Impact," International Journal of Multiphysics, vol. 4, No. 2, pp. 125-140, 2010. doi: 10.1260/1750-9548.4.2.125
  4. H. Luo, S. Wang and C. G. Soares, Numerical Prediction of Slamming Loads on a Rigid Wedge Subjected to Water Entry Using an Explicit Finite Element Method. Advances in Marine Structures, Guedes Soares & Fricke (eds), pp. 41-48, 2011
  5. A. Constantinescu, A. Alaoui, A. Neme, N. Jacques and P. Rigo, "Numerical and Experimental Studies of Simple Geometries in Slamming," International Journal of Offshore and Polar Engineering, vol. 21, no. 3, pp. 216–224, 2011
  6. D. J. Veen and T. P. Gourlay, "A Combined Strip Theory and Smoothed Particle Hydrodynamics Approach for Estimating Slamming Loads on a Ship in Head Seas," Ocean Engineering, vol. 43, pp. 64-71, 2012. doi: 10.1016/j.oceaneng.2012.01.026
  7. S. H. Kwon, Y. J. Yang and H. S. Lee, "Experimental and Numerical Study on Slamming Impact," Journal of Ocean Engineering and Technology, vol. 27, no. 1, pp. 1-8, 2013. doi: 10.5574/KSOE.2013.27.1.001
  8. J. H. Kim and Y. Kim, "Parametric Study of Numerical Prediction of Slamming and Whipping and an Experimental Validation for a 10,000-TEU Containership," Journal of Advanced Research in Ocean Engineering, vol. 1, no.2, pp. 115-133, 2015. doi: 10.5574/JAROE.2015.1.2.115
  9. F. Han, J. Yao, C. Wang and H. Zhu, "Bow Flare Water Entry Impact Prediction and Simulation Based on Moving Particle Semi-Implicit Turbulence Method," Shock and Vibration, vol. 2018, pp. 1-16. 2018. doi: 10.1155/2018/7890892
  10. A. Tassin, N. Jacques, A. Neme and B. Leble, "An Efficient Numerical Method for the Three-Dimensional Wagner Problem," Proceeding of the 25th International Workshop on Water Waves and Floating Bodies – IWWWFB, Harbin, China, 2010
  11. J. Jiao, H. Ren and C. A. Adenya, "Experimental and Numerical Analysis of Hull Girder Vibrations and Bow Impact of a Large Ship Sailing in Waves," Shock and Vibration, vol. 2015, pp. 1-10, 2015. doi: 10.1155/2015/706163
  12. S. Wang, S. Rajendran and C. G. Soares, "Investigation of Bottom Slamming on Ships in Irregular Waves," Proceeding of the 37th International Conference on Ocean, Offshore and Arctic Engineering OMAE, Madrid, Spain, 2018
  13. J. Jiao, Y. Zhao, Y. Ai, C. Chen and T. Fan, "Theoretical and Experimental Study on Nonlinear Hydroelastic Responses and Slamming Loads of Ship Advancing in Regular Waves," Shock and Vibration, vol. 2018, pp. 1-26, 2018. doi: 10.1155/2018/2613832
  14. T. Truong, N. Repalle, F. Pistani and K. Thiagarajan, "An Experimental Study of Slamming Impact During Forced Water Entry," Proceeding of the 17th Australian Fluid Mechanics Conference, Auckland, New Zealand, pp. 1-4, 2010
  15. F. J. H. Huarte and D. J. M. G. Gharib, "Experimental Investigation of Water Slamming Loads on Panels," Ocean Engineering, vol. 38, Issue 11-12, pp. 1347-1355, 2011. doi: 10.1016/j.oceaneng.2011.06.004
  16. M. Nikfarjam, O. B. Yaakob, M. S. Seif and J. Koto, "Investigation of Wedge Water-Entry Under Symmetric Impact Loads by Experimental Tests," Latin American Journal of Solids and Structures, 14, pp. 861-873, 2017. doi: 10.1590/1679-78253315
  17. H. Shin, B. Seo and S. R. Cho, "Experimental Investigation of Slamming Impact Acted on Flat Bottom Bodies and Cumulative Damage," International Journal of Naval Architecture and Ocean Engineering, vol. 10, no. 3, pp. 294-306, 2018. doi: 10.1016/j.ijnaoe.2017.06.004

Last update:

No citation recorded.

Last update: 2023-09-21 15:28:17

No citation recorded.