Static Force Problem: Solutions & Tips

  • Thread starter Thread starter RTbest
  • Start date Start date
  • Tags Tags
    Force Static
AI Thread Summary
The discussion revolves around calculating the force exerted by the legs (Fl) on a panel with given weights (Wp, Ws, Ww) and an angle of 44 degrees. The user is experiencing discrepancies between the x and y component calculations for Fl, yielding different results (255 lbf in x and 296.8 lbf in y). Participants suggest that the diagram lacks clarity, questioning the placement of forces and the relevance of the angle. They emphasize the need for a complete diagram and clear definitions of variables to assist in resolving the issue. Accurate geometry and force application points are crucial for solving the static force problem effectively.
RTbest
Messages
2
Reaction score
0
Load problem.png
 
Engineering news on Phys.org
Hi,

I have a problem I am looking for the force that the legs(Fl) have on the panel. Wp = 44.1 lbf, Ws = 1067.5 lbs, Ww=6.9 lbf. The legs are both spaced equally from the centre. the angle that the panel (Angled plane) with the horizontal is 44 degrees, as labeled. I've attempted this problem but when I sum the forces in the x and solve for Fl, the same result does not result when I sum the components in the y. Doing the x components Fl = 255 lbf, y components Fl = 296.8. Can someone else attempt this problem? Maybe I have my geometry wrong or something.

Thank you in advance
 
You diagram doesn't provide enough info. Are the applied forces midway between the legs? Is Ws pointing due south west?
Why have you included the 44 degree angle? It doesn't appear to have any bearing on the problem.
As Wp and Ws are not equal the Fl forces are not perpendicular to the table.

Show your attempt and we can check it. Clearly define all variables and units. A complete diagram would help a lot.
 
Hi all, I have a question. So from the derivation of the Isentropic process relationship PV^gamma = constant, there is a step dW = PdV, which can only be said for quasi-equilibrium (or reversible) processes. As such I believe PV^gamma = constant (and the family of equations) should not be applicable to just adiabatic processes? Ie, it should be applicable only for adiabatic + reversible = isentropic processes? However, I've seen couple of online notes/books, and...
I have an engine that uses a dry sump oiling system. The oil collection pan has three AN fittings to use for scavenging. Two of the fittings are approximately on the same level, the third is about 1/2 to 3/4 inch higher than the other two. The system ran for years with no problem using a three stage pump (one pressure and two scavenge stages). The two scavenge stages were connected at times to any two of the three AN fittings on the tank. Recently I tried an upgrade to a four stage pump...
Back
Top