NASA Ames Research Center
January 13 – May 1, 2020
What goals remain for the second half of the internship?
The objective of the structures project is to compare how SolidWorks finite element analysis compares to real-life stress and strains on composite structures. I have already conducted an experiment to compare the deflection, but moving forward I would like to conduct a second experiment using strain gauges to have a direct comparison to SolidWorks. Even though stress and strain are related to deflection, for a composite it requires laminate theory and material properties we do not have readily available. Another route I am taking to validate SolidWorks is running the case in ANSYS which has been validated for composite materials, this provides an alternative solution to find the payloads of the potential MSH designs if SolidWorks is not accurate. The aim for the design side of my project is to explore and prototype different actuating and locking designs with the goal of selecting a single design. In order to choose a singular design, I will finish my current prototype with an improved version of my current locking design and a new actuation method. After testing this design I will prototype and test a completely different locking design in order to evaluate these compared to the previous designs explored by myself and previous interns. I will evaluate them for simplicity, weight, rigidity, and the ability to lock in all directions. Using these I will pick the best design and prototype it on a full scale in order to make further design improvements.