Abstract This paper presents a methodology for the design of deployable tube flexures made of ultra-thin carbon fiber composite. The proposed process aims to enhance viscoelastic resilience on recovery time after long-term stowage through the design of cut-out geometries. Viscoelasticity is modeled using an experimentally determined Prony series master curve. Bayesian optimization is employed to determine cut-out shapes based on the recovery time and Hashin failure criteria. Partial dependent plots are implemented to interpret the effect of cut-out formation on deployment performance. These reveal optimal profiles of cut-out shapes to achieve a desired operational performance. The efficiency of the proposed methodology is validated by experiment.

    Highlights Viscoelastic and failure performance of tube flexures is enhanced via design optimization. Bayesian optimization permits exploration of a highly non-linear design space. A design framework of tube flexures for desired stowage and deployment is presented.


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    Title :

    Optimal design of tube flexure cut-out geometries for viscoelastic resilience and deployment performance


    Contributors:

    Published in:

    Acta Astronautica ; 216 ; 282-294


    Publication date :

    2024-01-08


    Size :

    13 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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