Comparative Analysis Results of Towing Tank and Numerical Calculations with Harvald Guldammer Method (Case Study of Propulsion Speed Reduction Pc-43)
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International Journal of Recent Engineering Science (IJRES) |  |
| © 2017 by IJRES Journal | ||
| Volume-4 Issue-5 |
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| Year of Publication : 2017 | ||
| Authors : Arica dwi susanto, Ahmadi, Okol S Suharyo |
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| DOI : 10.14445/23497157/IJRES-V4I5P103 |
How to Cite?
Arica dwi susanto, Ahmadi, Okol S Suharyo, "Comparative Analysis Results of Towing Tank and Numerical Calculations with Harvald Guldammer Method (Case Study of Propulsion Speed Reduction Pc-43)," International Journal of Recent Engineering Science, vol. 4, no. 5, pp. 14-23, 2017. Crossref, https://doi.org/10.14445/23497157/IJRES-V4I5P103
Abstract
The vessel was designed using a steel material with a maximum speed of 27 knots and using engine power by 3 x 1800 HP, T = 1.40 at the empty draught and T = 1.70 at full draught. The speed was decreased in the current conditions by 22 knots at 1.50 meters draught within 1 year after its launching. This paper compared the calculation results of towing tanks and numerical calculations. The results from the manual calculations of power at T = 1.65 meters in 27 knots, the comparison of numerical calculation BHPscr = 4245.04 HP with towing tanks calculations of 4286.40 HP. Thus, the difference in numerical and towing tank results was very little and it could be concluded that it was the same, while the total power engines installed in the vessel (3 x 1800 HP) = 5400 HP (BHP). means a mathematical/theoretical speed of 27 knots can be achieved. Thus, the resistance and power is not one of the causes of speed reduction in Vessel Type PC43.
Keywords
Ship Resistance, Power Boats, Patrol Craft, Sea Trial, Towing Tank
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