마운팅 브라켓 최적설계를 위한 해석적 기법 연구

Various optimization schemes have successfully been utilized to design the mounting brackets of the chassis components, especially suspension systems, recently in the heavy duty truck development process. Depending on the design status, different optimization schemes, i.e. size, topology, and shape, are applied. First, in case that the design is already frozen near the mass production, so that only minimal change is allowed, the size optimization is attempted. Second, in the middle of the design process where relatively a more room for the change is available, the shape optimization is adequate to carry out, based on the basic CAD model. Finally, early in the design process, when a total freedom is given for the design, the topology optimization can be adopted, starting from a box model without any reference CAD model. In this paper, it is discussed how these optimization methods were exploited to achieve an optimized design of the brackets - more stiffness, strength, and less weight.