# Statics question about deflection

1. Dec 7, 2009

### dp2452

Hi, I just have a question about the situation present below:

http://img25.imageshack.us/img25/1409/staticstransrot.jpg [Broken]

So basically the goal is to find the deflections of points A, B, and C but I'm having trouble with analyzing this. At point A, there is a roller so the force will provide a rotational and translational component since point A is not rigid.

What I thought of doing is splitting this into two parts for the rotational and translational deflections separately. So to start I found the forces within each member (EB and AD) through equilibrium then I started with the translational deflection.

Since the force is to the right, the member EB will want to stretch and AD will compress. Thus, the translational deflection of point B can be found as the summation of the absolute deflections of stretching in EB and compressing in AD.

Now here's where I'm stuck. I know that this will rotate but I'm not sure how I go about calculating deflections.

Can anyone lend a hand on solving this problem?

Thanks

Last edited by a moderator: May 4, 2017
2. Dec 8, 2009

### stewartcs

Although I cannot see your attachment for some reason, I would like to point out that a roller does not have a rotational component. There is only one reaction associated with a roller, a vertical reaction.

CS

Last edited by a moderator: May 4, 2017
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