| 요약2 |
Space frame structures need shape generation and optimum design to secure the safety and economy. Especially, the shape of structure is an important factor to determine the optimum design results. However, in spite of the importance of the shape design, the shape decision of structure relys on engineer's intuition and previous experiences. Also, in the optimum design problem, the minimum weight of the structure has been adopted as the objective function in most cases because it is focused on improving economic efficiency. However, this minimum weight optimum design method does not guarantee the maximum stiffness of the structure. Therefore, this study presents the integrated program modular system for the efficient shape generation and optimum design. This integrated modular system consists of shape generation module, structural analysis module and optimum design module. Each module can be connected with a commercial program by using pre/post process. Shape generation module creates the desirable shapes by using the parameterized design variables and the shape can change during the optimization process. Also, in optimum design module, maximum stiffness based on the minimum weight optimum design can be optimized in the step design process that the best results can be derived. For the development and improvement of integrated modular system, the application example with several design variables is considered. |