Next Generation Design of Satellite Brackets - By Using Topology Optimization and Additive Manufacturing
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This thesis has explored how topology optimization and additive manufacturing canbe used to improve the resonance performance of existing mechanical components.By using a sensitivity-based optimization algorithm for minimum compliance, theresulting optimized components show an increased natural frequency comparedto the original components. Three brackets holding the payload of the AISSat1 satellite were used as baseline components. Two different design optimizationswere performed. In the first result, each bracket was optimized individually, whilethe second result combined the three brackets into one component. The naturalfrequency of the original center bracket was increased from 3224 Hz to 3849 Hz andthe top and bottom brackets increased from 2667 Hz to 4138 Hz. The one-piecebracket achieved a natural frequency of 3795 Hz. A weight target of 36 grams basedon the total weight of the original brackets was used. This target was not met byeither result. The individual brackets amassed to a total of 43.4 grams, while theone-piece bracket weighed 39.9 grams.