A computer-aided design method for creating the 3D model of an underwater hull has been developed based on the use of B-spline curves. With the constructed program, the configuration of an underwater hull can easily be generated by the designer. The form of an underwater hull can be modified by one of the following methods: (1) changing the shape of the cross section of the hull, (2) inserting a new section between two different sections, and (3) changing the distance between two adjacent sections. In addition, the nose shape of the hull can also be modified by setting a point, a cross-section, the tangent vector, or the radius of curvature at the nose. After the form of a hull is constructed, a 2D grid mesh for the environment around the hull, which is going to affect the underwater hull when it is moving in the water, can be generated with another program built in this study based on the body-fitted curvilinear coordinate system. The grid mesh can be used to analyze the drag coefficient of the hull, which is the next step in the development of this design environment. Some hull configurations and the grid meshes of the environment around the hulls are constructed. They are well under control and the feasibility of applying these techniques to shape design for an underwater hull is demonstrated.
|Number of pages||11|
|Journal||Naval Engineers Journal|
|Publication status||Published - 1996 Jan 1|
All Science Journal Classification (ASJC) codes
- Ocean Engineering