Abstract:
There is a need to reduce the resistance of the fishing vessels. This is to reduce
the economic costs incurred by the fisherman. The research is about the designation of
hull boat by modifying the hull form for fishing vessel to get the minimum resistance
or reduce its drag in water. In design world, one of the challenges faced by naval
architecture is to select the best hull form to minimize the resistance. The main
objective for this research is to design the best shape of hull boat to achieve the
minimum resistance. By using the Maxsurf Professional 13 Software, it can be obtain
or predict the resistance and power requirement and for the new design of optimal hull
form will be produced. There are several methods in Maxsurf Professional 13
software which is Holtrop method, Compton method, Fung method, van Oortmerssen
method, and Series 60. The suitable method that has been chosen for this research is
Holtrop method. Holtrop method is one of the techniques widely used in prediction of
resistance of displacement and semi-displacement vessels. Like all methods, however,
this technique also has the own limitation. Holtrop and Mennen method is limited to a
suitable range of hull form parameters. In their approach to establishing their
formulas, Holtrop and Mennen assumed that the non-dimensional coefficient
represents the components of resistance for a hull form. It might be represented by
appropriate geometrical parameters, thus enabling each component to be expressed as
a non - dimensional function of the sealing and the hull form. The findings are
presented and analyzed with hydrostatic calculation after the design of hull form
defined. The best hull form that chosen in minimum resistance is by decreasing value
of Cp compare with the parent hull while increasing value of displacement volume.
By using this method, the hull can be modified without changing the principal
dimensions of the vessel. That slightly modification of the hull will minimize the
resistance and enables reduced fuel consumption.
