Visualization Of The Process Of Calculating Hull Longitudinal Ultimate Strength By Smiplified Smith's Method

With the increasingly development of global economy cooperation, the spring of shipbuilding has became. Several years ago, our government made a long-term plan which showed the ambition of becoming the biggest shipbuilding country in 2015. Obviously, shipbuilding of China will grow rapidly. In the basic premise of safety, the lower weight ship is the ship-owner's favorite ship type. At the same time, hull longitudinal ultimate strength is an important factor to be considered during ship designing. For a good knowledge of the whole collapse process being bended vertically, this article proposes the concept of visualization of the process of calculating hull longitudinal ultimate strength by Smith's method.Now, there are main three kinds of method to calculate the longitudinal ultimate strength of ship hull: idealized structural unit method, nonlinear finite element method, and simplified Smith method. On the basis of extensive reading the literatures both domestic and overseas, the author selects simplified Smith method to calculating hull longitudinal ultimate strength. As a result of calculating, the result date is so large that it is difficult to know the truth of the collapse process. So it's necessary to visualize the calculating results. In the area of visualization, OpenGL has became the standard graphic interface and been adopted by many famous FEA and 3D software designing company. So this article also selected OpenGL as the graphic interface in designing the graphic application program.Finally, the thesis analyzed the oil tanker with simplified Smith method and outputted the results in OpenGL application program actively.