PREDICTION OF ADDED RESISTANCE OF SHIP DUE TO REGULAR HEAD WAVES

Authors

  • Mohamad Pauzi Abdul Ghani Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor
  • J. Julait J. Julait Jurong Shipyard Pte. Ltd., Singapore

Keywords:

Added resistance, strip theory

Abstract

This paper presents the added resistance of a 100m Product Tanker due to waves. It includes the study of influence of ship speed and wavelength to the added resistance. This work was carried out by theoretical calculation and model testing in towing tank. The method proposed by Gerritsma & Beukelmen was used in the theoretical calculation technique. This method required ship motion and hydrodynamic coefficients data as input, which was determined using Strip Theory. The model testing was carried out on a 3.382 m model in the towing tank 120m x 4m x 2.5m at the Universiti Teknologi Malaysia’s (UTM) Towing Tank in Skudai, Johore Bahru. Both of the techniques were investigated in three Froude number values, namely 0.21, 0.25 and 0.28. For each Froude number, the study was conducted at wavelength to model length ratio, Lw/Lm between 1.0 and 2.0. The outcomes from both experimental and theoretical calculations were also compared.

References

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Julait, J., 2007. Added Resistance of Ship due to Regular Head Waves, Master Dissertation, Universiti Teknologi Malaysia, Johor Bahru.

Journee, J.M.J., 1976. Motion, Resistance and Propulsion of ship in Regular Head Waves, Delf University of Technology, Report 0428.

Recommended Procedures and Guidelines, 2005. International Towing Tank Conference (ITTC). Testing and Extrapolation Methods Loads and Responses, Seakeeping Experiments 7.5-0207-02.1.

MARIN, 1996. Model Tests for a Tanker in Irregular and Regular Waves (Model 7698).

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Published

2018-04-09

How to Cite

Abdul Ghani, M. P., & J. Julait, J. J. (2018). PREDICTION OF ADDED RESISTANCE OF SHIP DUE TO REGULAR HEAD WAVES. Jurnal Mekanikal, 26(2). Retrieved from https://jurnalmekanikal.utm.my/index.php/jurnalmekanikal/article/view/134

Issue

Issue 26: December 2008 (Special Issue)

Section

Mechanical

License

Copyright of articles that appear in Jurnal Mekanikal belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions or any other reproductions of similar nature.