Honors Physics - Bridge Project Video - Austin W. & Alex Z. |
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Entire script in description!
Intro: Austin - This is Austin Alex - and this is Alex. Here is our bridge project video. Use of Software: Austin - When we first began the project, we used the West Point Bridge Designer program to come up with a lot of different bridge designs but we decided we liked suspension bridges because they seemed to yield low compression ratios. Initial Design: Alex - We began tinkering around with some default designs and settled on a basic suspension bridge design with a compression ratio of .4 Final Design: Austin - We decided to continue to alter our initial design. After adjusting the heights of the support beams we found a design which was able to lower the compression ratio even further to .33. With the simplicity of the design and low compression ratio we determined this will be our final design. We also calculated that the amount of spaghetti required to build our bridge would be about 485 cm Building Plan: Alex - For our building plan, we decided that the best way to build our bridge in 3 days would be to build the first side the first day, the second side the second day, and then connect the two sides with all of the middle pieces on the third day. The reason we thought this plan was effective was because this allowed us time on each day to focus on one section at a time and do our best to perfect each section. Construction: Austin - We followed our original plan, by building one side each day and connecting them together on the third day. We used two shoe boxes as scaffolding to hold up the bridge during the final connecting stage. To expedite the drying process we used a industrial grade heat gun to dry the glue. Problems/Solutions: Alex - During construction many strands of spaghetti snapped which we fixed by dousing them in Elmer's glue and drying them with the heat gun. Our final bridge measured out to 28.5cm which was short of the required 30 cm. There wasn't really any solutions to this other than to accept the disqualification. Force held: Austin - Our bridge held 7.7 newtons which was fairly average for our class, yet with the disqualification we were unable to compete against our classmates. Reflection: Alex - This project appeared to be nearly impossible given the constraints, however as we began to work through it we were able to problem solve and come up with a bridge in the end. |