The final element the go through is to discuss what the goals of the mechanism are and how they achieve those goals. Through this analysis, some flaws with the design were noticed as well and those will also be discussed.
The primary goal of the mechanism is ultimately to provide shade to the users. This design also has the added appeal that the shade angle can be adjusted easily to account for any time of day. Though it was not included in this analysis, the base of the mechanism can swivel 360° as well, allowing for maximum customization. Through the position analysis, we can come to appreciate just how this mechanism goes about achieving this customization. The following plots show the umbrella at the 4 extremes of its inputs:
Extending Both to Maximum Is Ideal for Storage
Um, Not Very Useful
Having h1 Large Leads to Steep Shade Angles: Good for Morning/Evening
Having h1 Small Leads to Shallow Shade Angles: Good for Noon or Large Areas