A Study on Size Optimization for Rocket Motor with a Torispherical Dome

In this study, we discussed the weight reducing of a urban railway-car body, in particular, of the Korean EMU, by optimizing topology and size of aluminum extrusion profiles. The heaviest parts of aluminum railway-car bodies, i.e., the base plate of underframe and side panels of side frame composed of double skin structures are considered for optimization. Topology optimization process is applied to obtain get an optimized rib structure for the base plate. The thickness of ribs and plates of the topologically optimized base plate and the existing side panel are also optimized by employing the size optimization process. The results are verified by comparing the maximum von Mises stresses and maximum deformation in the case of the existing design with those in the case of the optimized design. It is shown that the weight of a base plate and side panel can be reduced by 12% and that the weight of the whole car body can be reduced by 8.5%.Corresponding

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A Study on Size Optimization for Rocket Motor with a Torispherical Dome

Cited by 2 publications

References 2 publications

Evaluation of strength variation of domes and cylinders with different winding angle of type III high pressure storage vessel

Evaluation of strength variation of domes and cylinders with different winding angle of type III high pressure storage vessel

Weight Reducing of Aluminum Extrusion Profiles of a Railway-Car Body Based on Topology and Size Optimization

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