Title of Blog Post: Test Drop 0
In Project Collisions, I am creating a system to deliver SkinCare 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 9.5cm by 5cm and 10cm was dropped from a height of 5 meters. Below is a photograph of the package:
The package will hold Skin care product. Inside, items are organized like this: a box of skin care inside is the things that is order.
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 data is collected throughout the design cycle.
During the drops, I noticed that I notices that every time the box goes down we have a 60% of chance to hit the target i wonder if the box is going to hold when it hits the ground . The following data was collected:
The average time it took for our package to fall the 5 meters was 3-5sec. Using LoggerPro, we plotted out the fall of the package.
<insert image – screenshot – from LoggerPro>
It was very fast when it was release from the top and falling down
A force plate at the bottom of the drop was used to collect data on the impact force of the package. Our group was good I think because we have a 3 out of 5 which is a 60% to hit . This is your land on the point! If you were, include one screen shot from the LoggerPro data that shows the impact>. As a project metric for accuracy, we want our project to less or equal to 60cm
The average force on impact was 45 newtons. As a project metric, our group has decided to for project drop 0 we want to reduct the impact by more or equal to 20 newtons.
Summary: Project Metrics
Our team has decided that the three most important criteria to design towards are accuracy Below, each metric is described and the goals were determined by data from Drop 0.
- Metric 1: We hope that the accuracy we have are not far from 60 cm
- Metric 2: To use reusable material
- Metric 3: soft land with parachutes to reduct the impact
Our group is now building the first prototype. I hope that we could design a package that could have a soft land of 15 newtons and have a accuracy of 85% .