In Project Collisions,I am creating a system to deliver fast food burgers by drones. The drone will release the package from a height up to 10 meters and my job as an engineer is to develop a solution so that the package is protected in its fall.
For Drop 0, a package with the dimensions of 12 times 14 times 16 was dropped from a height of 5 meters. Below is a photograph of the package:
The package will hold a burger, a juice box, and tangerines. Inside, items are organised like this:
the package is 14 centimetre tall with a base with a length of 16 an 12 centimetre.
The purpose of Drop 0 is to get baseline data about our package. The group developed a testing procedure so that we can be consistent on how datais collected throughout the design cycle.
During the fall the following data was recorded:
The average time it took for our package to fall the 5 meters was 2. Using LoggerPro, we plotted out the fall of the package.
The package stayed in the same approximate position for a while when Jun was holding the box, and when Jun released it, you see the package go faster and faster until it hits the table and goes still again.
A force plate at the bottom of the drop was used to collect data on the impact force of the package. Our group was quite successful at dropping target because since me and Tracy was not there Jun was completely alone, but he still manages to do 3 drops. The first one was on target, with a force of 116.9 neutrons, the second one was not so successful as it missed, and the force plate only received 31, the last drop received 147.8, so the last drop was probably the most accurate.
The average force on impact was 98. As a project metric, our group has decided that we want our force of fall to be 20-50
Our team has decided that the three most important criteria to design towards are soft landing, accuracy, and good food quality. below, each metric is described and the goals were determined by data from Drop 0.
● Soft landing, land with a force of about 30-50 newtons, we thought that that should be an appropriate force when landing
● Have an accurate drop of our package, we need to land it on the force plate.
● Food is separated, not soggy, not combined
Our group is now building the first prototype. I hope that it will show us more things that we might need to improve on for my next prototype.