- #1
chuffy
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Homework Statement
Complete a free body diagram for the truss structure with a weight attached to node 2 (this is known as 151N)
Homework Equations
The Attempt at a Solution
I have attached my Free Body Diagram
The diagram is to display what is know at the start of the problem before working out the forces, stresses etc..
Obv at the end of the problem everything is know but this is for initial conditions
The part of the diagram I'm unsure of is Node 5 & Node 3. This Is what I'm thinking
I need to indicate the known / unknown for force & displacement for the nodes.
U1(5)=? F1(5) = 0
U2(5)=? F2(5)=-151.9U1(3) =? F1(3)=0
U2(3)= ? F2(3)=0
Bit confused for each node Force (F) & Displacement (U) in the x,y axis
I know you can only have 1 unknown for each axis
Attached my drawing
thanks