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Today the mechanical team have been working hard on the drive train. The senior design group took apart the drive train and motors so that they could analyze the current shaft and prototyped a new shaft and are really excited about machining the new shaft. Dom and his partner Angell from the electrical team completed the functioning prototype of the led screen that will placed on the boat . He worked the whole day to get the screen functioning at a higher frequency.
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The two Friday workshops have been a huge hit. Over 30 people came to both workshop sessions each. The first week, team members learned how to draw objects on Solidworks using patterns, extrusions, cuts, and mirror. In the second weeks, they dissembled the drivetrain, installed the chain on the motors and drivetrain, and learned how to draw freeform objects using the loft method. On Saturday, members started preparing the wooden planing hull to make it a plug for the new carbon fiber hull.
First General Body Meeting tomorrow (September 10) at 1pm at Light Engineering 173. See you all there
The Stony Brook Solar Racing Team performed extraordinarily well this year at the annual IEEE Solar Splash Competition in Dayton, Ohio. Among the awards were 1st place overall, 1st place for the solar slalom, 2nd place for qualifying, 2nd place for solar endurance, and 2nd for sprint. This is the result of an improved surface piercing drivetrain with two gear ratios and new motor controllers, which increased the speed and reliability of our boat. The team has put in endless hours throughout the year (including summer) into designing and building a boat from the ground up. There is no greater reward for our efforts than performing so well during the competition. More importantly, team members have grown to work well with each other and appreciate the skills they have gained from their time in this organization. We would like to again thank our sponsors and individuals who have helped us get this far. As a look back on all our hard work, here is an overview of the team. The hull testing at the Davidson Labs went by very well. We ran tests at differnt speeds from 5mph to 20mph on both of our hulls. From this test, we gathered useful data in drag, trim, and heave. Additionally, Uihoon provided some additional tips when building our actual hull. Special thanks to Davidson Labs.
The first hull that we vacuum bagged finally cured (it just needed more time than we thought it would need initially). It came out nice and we are now preparing to vacuum bag the second hull. We have started making a mold for the seat as well and hope to bag that in the next few weeks.
So last night there was a big snowstorm, so the school cancelled all classes. To make use of the extra time, we worked from 2pm until 11pm trying to perfect the carbon fiber vacumm bagging process. It wasn't suppose to take that long, but this was our first time and our only guide was guy from England on youtube. We went through two vacuum bags, but neither of them held the vacuum, so we just left it overnight to cure. Today we checked the model and although it has cured, the carbon fiber was flexible and not stiff at all. It literally took an hour trying to get the model out. It looks nice, but it is not usable because it is too flexible. As a result, we had to postpone the tow tank test tomorrow with Steven's Institute until next week. Better luck tomorrow with Nick's hull. Tonight, Ankit and Han John presented the Solar Boat Team to the university community at the Theta Tau's Demystifying Engineering Event. The purpose of the series is to explain the different types of engineering to help students decide which major they want to pursue. Among Bio-medical Engineering, Civil Engineering, and Materials Science, the Solar Boat Team represented the Mechanical Engineering Department. We gave a great overview of the team, current projects, and our accomplishments. It was a great networking opportunity to meet other student leaders and Mechanical Engineering Professor Sotirios Mamalis |
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