week10-xue

Last week in class we test our finial bridge design. This bridge is the bridge witch we had work on sever week. Try to get a best load with the lower cost. This time our bridge is broken when we load 17 pounds. This result is little surprising, because our predicted is more that 17 pounds. Our bridge is broken on one side. One side is break in a lot of parts, but the other side is not break at all. That may because of the equal load of the bridge. It we load more carefully it may get a better result.

This week is the last lab we have. We would talk about this team in class. We could have a good end up of class. Submit all work we need to done and enjoy the rest of the time.      

This team is almost over. In this team engineering class I have learn a lot of the bridge specially tress bridge. By using West Point Bridge deigns, Truss Analysis, Individual Knex Bridge Designs I get a full knowledge of how to made a bridge using knex. How to calculate the force act on each member? My skill on computer Program Bridge and Physic Bridge is all get improve.

The least useful thing is the trigonometric calculation. The project witch asks use to calculation the force on each member by hand is very useful and time wasting. We can get the answer from the bridge program. It has no meaning of calculate by hand and draw the free body diagram.

            The most helpful tool would be the west point bridge design. In the time when we did know anything about the bridge, The west point bridge design give us an idea of what a tress bridge look like. How force are act on each part. The basic design on west point bridge design is a helpful tool to future design.

            I think this section is really good, do not need a big improve. I have an idea of if we have time in the lab; we could do a different type of bridge. The compare of different type of bridge could be very interesting