Tuesday, November 8, 2011

Engineering Trade Offs (Homework for Nov. 7/8)

Here are the details on the assignment we started in class (to be finished at home), in case you've forgotten.

Select a vehicle to analyze - your favorite car, your least favorite truck, an interesting design you've heard of, even an ATV or motorcycle.

For the design of your vehicle, identify the "Trade offs" made in its design. Trade offs are not quite the same as pros and cons. A trade off is a decision an engineering makes that has both positive and negative results. Example:

A high ground clearance gives good off road ability and helps in some kinds of crashes, but results in worse millage and makes a vehicle more likely to roll over.

Thus the designers of the Jeep Cherokee made a trade off - higher clearance for off roading, but less fuel economy and less stability.

Engineers make all kinds of trade offs in every design. Try to explain at least 3 for your vehicle.

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