Reinforcement in curves and propellers

Hi all
I need your lights
I would like to be able to model the reinforcements that can be seen in the photos taken as examples
I find this system "elegant" and ingenious
I have the idea of adapting it to different 3d printed objects, but here I am stuck
I struggled with the "Propeller" function but without much success; I can't keep up with the "outer skin"
Do you have an idea?
FYI I'm on solidworks 2013
Thank you in advance for your help

 


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