9 the overall result is a stiff structure that is

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Unformatted text preview: to steel fabrication, and simplifies and reduces the amount of welding.9 The overall result is a stiff structure that is able to handle complex loads and aerodynamic forces that result from going through tunnels, and which is about two-thirds of the weight of a comparable structure fabricated from steel. This weight reduction is especially significant for commuter trains with frequent stops as it enables energy savings in service and reasonable acceleration between stops (Figure 3). The other advantages of aluminum in durability and corrosion resistance also provide low maintenance costs and long system life. Figure 3. DC Metro train. (Photo courtesy of wiki/Washington%2C_D.C.) Figure 2b. High capacity railcar with sliding aluminum sidewall. (Photo © Alstom Transport) Lastly, another advantage of aluminum freight cars is that they retain a high salvage value when recycled at the end of their life cycle. In a recent example, several hundred 100-ton hopper cars initially built aroun...
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This note was uploaded on 01/27/2014 for the course CM 312 taught by Professor Mariowriedt during the Spring '10 term at Clarkson University .

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