Drop Zero

Project Collisions
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
Summary:Project Metrics

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.

 

An Egg On A Skewer

On Monday, January 7, I began Project Collisions with an egg drop. This design challenge was to drop a raw egg from a height of 5 meters without breaking it. A material list with items to purchase was provided. My first design was with 6 skewers and i tied it with strings.

 

Then, working in a group, we decided to create that because i thought that when it hit the ground it would expand and therefore absorb the force.

 

As the egg was dropping, I knew that we had messed up because our structure was upside down and i knew this meant that the egg will be the first to hit the ground.

Our design was unsuccessful because the egg was the first to hit the ground and therefore it had literally no protection.

Next time, I would make the egg into a more secure position.

Project Collisions is using the idea of drone delivery. During my research, I realised that i would be really interested in fast food delivery because some people would need food really fast.

Through this project, I hope to be able to design a better protection for the egg then the one me and Justin (my group mate) made during launch day.

Math Blog Post JChen

Check out my habitat blog post below

The Mars Hub

FLYBYJchen EYuan  <—– Watch Our FlyBy

 

The Forgotten City

James, Taylor, and Desmond arrived at noon, they sat in the outskirts of the city and hungrily devoured their lunch. After an altogether satisfying lunch, They decided to scout out the city. They decided to walk to the city, as the city came into sight, James felt like the city seemed really well kept. James and the others kept walking. Then some sixth sense told him to be careful, he looked up. Something was wrong. Something was awfully wrong.

The Forgotten City <——Read The Full Story!

The Forgotten City

The Forgotten City

        James, Taylor, and Desmond arrived at noon, they sat in the outskirts of the city and hungrily devoured their lunch. After an altogether satisfying lunch, They decided to scout out the city. They decided to walk to the city, as the city came into sight, James felt like the city seemed really well kept. James and the others kept walking. Then some sixth sense told him to be careful, he looked up. Something was wrong. Something was awfully wrong.

The Forgotten City

  ^^^^^^^^^^^^^

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ForagersToTheFutureResubmission

ForagersToTheFutureJonathanChen6

The Mars Hub

40 millimetre = 1 meter

We have a 1 meter wide door and a 1.75 meter tall door. I think this is reasonable because the people using this door should be less than 1 meter wide right? 😉 1.75 meter should be enough length for someone to go through. The height of the ceiling is 80 millimetre which is 2 meter high. This might be a little bit cramped but a normal person is definitely shorter than 2 meter. Our Rover is 5 by 4 meters rectangles which is 20 meters squared. I am happy with the final design without furniture because Ethan accepted my idea really well and our mars rover had a window (important to my story plot in my story)  and a wheel (which was my character’s sort of transportation. ) At first me and Ethan could not collaborate very well because we had extremely different ideas but then we found a way to combine his environment (mars) and my sort of shelter (RV).

 

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River Field Study – Data Collection 3

This time, one of our collection locations, the bridge, was blocked of by a fence, and we were forced to abandon that location and only use the location Trash Line and Slide. We were also forced into moving the slide location a little to the left because of the newly put fences. Compared to last time’s temperatures, this time’s data temperature definitely dropped. For the Slide: we got 6 degree celsius for air; 3 degree celsius for soil; and 8 degree celsius for water. For the Trash Line: 8.5 degree celsius for air; 12 degree celsius for soil; 8 degree celsius for water. Our soil thermometer seems to have some problems with measuring the temperature, and I wonder how we might be able to fix it ;).

this is a picture of FA at the WenYu river November 20th

WHAT? SO WHAT? NOW WHAT? JonathanC FA7

A huge problem that we are facing today is poverty. I think this will be a big problem in the future because poverty makes a lot of people suffer and kills people that don’t deserve to suffer. I think that we should all start raising awareness so that people who were born in a lucky environment like me can understand and try to help people who are born into an unequal and unfair environment.

Foragers To The Future JonathanC FA7

River Field Study – Data Collection 2

Today we went to the Wen Yu river for data collection number 2. Our data collection process was not as successful as I had hoped for because my group bent the soil thermometer that we use to measure the soil temperature, and we also broke a thermometer we used for the air and water temperature. We had also run out of time for our third location measuring so we need to keep track of time better the next time we go to the Wen Yu.

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