## Deflection of beam

I have some questions about calculating the deflection of beam.
First, when should I applied the method of superposition ?
Second, When I'm setting a "x" on the beam, where should I start and end ?

 PhysOrg.com engineering news on PhysOrg.com >> NASA: Austin, calling Austin. 3-D pizzas to go>> Research suggests modular design competence can benefit new product development>> Army ground combat systems adopts tool for choosing future warfighting vehicles
 Recognitions: Homework Help 1. Whenever it is necessary. 2. Start at the beginning and go to the end. Your questions are overly vague, as are my answers. If you have a specific example to discuss, then you will get more usable responses.
 for question like above, is superposition necessary?

Recognitions:
Homework Help

## Deflection of beam

It's not necessary to use superposition. If you had a table of beam deflections and slopes for a cantilever loaded from A to B with a UDL and from A to C with a UDL, you could use superposition to find the slope and deflection for the problem shown. If you are going to work out the slope and deflection using, say, the integration method, superposition would not be as useful.
 Recognitions: Homework Help Science Advisor mchei: In response to your two questions in post 1 ...(1) Superposition is used when a more difficult linear problem can be broken into two (or more) simpler problems. (2) I usually like to start x at the beam left-hand end, and end x at the right-hand end.Superposition might be necessary in a question such as in post 3.
 @ NVM Couldn't you create an equivalent loading configuration to make the math easier and not have to deal with superposition at all?
 Recognitions: Homework Help Science Advisor aeb2335: No, I currently think an "equivalent" loading is generally not equivalent.