Recent content by theBEAST

Anyone know?

Homework Statement My team and I are working on a design project to design/modify a device that can go on hikes for paraplegic/quadriplegic people. Here is the current design (not designed by us): http://i.imgur.com/RAOq28k.png http://i.imgur.com/zgA3aCg.png We are thinking of adding a...

Homework Statement and the attempt at a solution[/B] I tried to find the equivalent sprint constant using two points of equivalence. The first is with respect to theta. The second is with respect to the datum x as shown in the images below. The two methods yield two different answers which is...

Homework Statement In my dynamics modelling class, the professor went over an example where we linearize non linear state equations to approximate the behavior. In this case, we are not given an operating point. However, the professor said you can solve for the operating point by setting x' =...

Sweet, but what small typo are you referring to? PS: this is from the solution manual

Homework Statement Here is the problem with the solution: I feel like the solution should be 10.74m. The maximum allowable length should be the lower one. This is because, for example, if we make the column 11m in length. The Pcr in the zy plane would decrease and since we are applying...

last bump.

Homework Statement Here is the question: I am confused about the solution. In the solution they found that the minimum capacity rate ratio R = C_min/C_max was zero. This is because of the term I circled in the red which I do not understand why it goes towards infinity. Here is the solution...

bump.

But is the integral I circled in red correct, is my method correct?

So I did it with Macaulay Equations and got the same answer:

Hmmm, I went over my moment balance equation several times and got the same equations, then I plugged in x = a and got the values... I feel like I am doing something really dumb and I can't seem to figure out what.

Hmmm, so I drew it out and I get this: I guess it makes sense since there is a moment in the beam so we should expect a discontinuity so I am not sure where my mistake is still :(.

Oops, sorry, I have posted my solution.

Homework Statement The Attempt at a Solution http://imgur.com/3ZfjPxM.png So if you look at my attempt, I integrated the strain energy density function and at the end everything cancels out. Does anyone know what I did wrong?