- #1
I can't see that in your attached images? Is there an image missing?chetzread said:i don't understand the 8/BD = x/EB
in post#1billy_joule said:I can't see that in your attached images? Is there an image missing?
Yeah, I see the two images in your OP and then again in post #4.chetzread said:in post#1
chetzread said:i don't understand the 8/BD = x/EB
in second image of post #6billy_joule said:Ok.
We still don't have the full problem statement as the dimensions of the structure don't appear in any of your three images.
I'm guessing the calc is some geometry to find some unknown length. Maybe E is a typo. Hard to say really, that's why PF homework rules state that you must include the entire question
I see no dimensions (or angles) on either image in post #6. The second image appears to be part of the worked solution, how could you be expected to solve the problem if the geometry of the truss isn't given?chetzread said:in second image of post #6
We need you to post the complete figure and data for the problem as given. There are no dimensions marked on what you have provided.chetzread said:i don't understand the 8/BD = x/EB
Can anyone explain about it? There's no point E in the diagram...
the full exact question is in photo 271...That's the complete question...billy_joule said:I see no dimensions (or angles) on either image in post #6. The second image appears to be part of the worked solution, how could you be expected to solve the problem if the geometry of the truss isn't given?
Well, then the question is incomplete and unsolvable.chetzread said:the full exact question is in photo 271...That's the complete question...
Truss forces are the internal forces that act on the members of a truss structure. These forces include tension, compression, and shear.
To solve equations for truss forces, you first need to draw a free body diagram of the truss structure and identify all the forces acting on each member. Then, you can use the method of joints or the method of sections to analyze the forces and set up equations to solve for the unknown forces.
The method of joints involves analyzing the forces at each joint of the truss structure, while the method of sections involves cutting the truss into sections and analyzing the forces acting on each section. The method of joints is more suitable for truss structures with a small number of members, while the method of sections is more suitable for larger and more complex truss structures.
A truss structure is statically determinate if the number of unknown forces is equal to the number of available equations. This means that the structure can be completely solved for all the unknown forces using the equations of static equilibrium.
Some common mistakes when solving truss force equations include not considering all the forces acting on a member, not using the correct sign conventions, and not properly labeling or identifying the forces. It is also important to double-check the calculations and ensure that the final solution makes sense in the context of the truss structure.