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Next Generation Design of Satellite Brackets - By Using Topology Optimization and Additive Manufacturing

Sanden, Øyvind
Master thesis
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URI
http://hdl.handle.net/11250/2615331
Date
2018
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Abstract
This thesis has explored how topology optimization and additive manufacturing can

be used to improve the resonance performance of existing mechanical components.

By using a sensitivity-based optimization algorithm for minimum compliance, the

resulting optimized components show an increased natural frequency compared

to the original components. Three brackets holding the payload of the AISSat

1 satellite were used as baseline components. Two different design optimizations

were performed. In the first result, each bracket was optimized individually, while

the second result combined the three brackets into one component. The natural

frequency of the original center bracket was increased from 3224 Hz to 3849 Hz and

the top and bottom brackets increased from 2667 Hz to 4138 Hz. The one-piece

bracket achieved a natural frequency of 3795 Hz. A weight target of 36 grams based

on the total weight of the original brackets was used. This target was not met by

either result. The individual brackets amassed to a total of 43.4 grams, while the

one-piece bracket weighed 39.9 grams.
Publisher
NTNU

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