ENEG11006: Engineering Statics - Sign Convention and Free-Body Diagrams - Engineering Assignment Help

Assignment Task:

Question 1.

For the truss shown:

a) Determine the reaction forces at the pin joint at B and the roller support at J.
b) Determine the zero-force members.
c) Determine using the method of joints, the forces in members IJ, IG and IH. Show which of these members is in tension and which are in compression.
d) Using the method of sections confirm your answers for the force in the member IH. 

Question 2.
 
Determine the force in each member of the truss shown in Figure 2. State whether each member is in tension or compression. You can use either the joint or section methods. 

Question 3.

For the frame shown in Figure 3, calculate the shear force and bending moment at,
 
a) A (just to the right of A)
b) F (just to the left of F)
c) Midway between E and F 
Note that CD is a two-force member transferring the load only in the CD direction. 

Question 4.

For the beam loaded with as shown in Figure 4:

a) Draw the shear force and bending moment diagrams.
b) What are the values of the shear and moment midway between D and B?
c) Determine the maximum bending moment, Max 
 

Question 5.
 
For the beam loading as shown in Figure 5:

a) Determine the reaction forces at E and F.
b) Determine the internal forces and moments as a function of x.
c) Draw the shear force and bending moment diagrams (indicating discontinuities, maximum, minimum and zero-crossing points). 

Question 6.
 
The door shown in Figure 6 is held by the chain AB. If the tension in the chain is 100 N,

a) Determine the projection of the tension force onto the diagonal axis CD of the door.
b) Determine the weight of the door. Door weight is uniformly distributed over its area. The door is hinged along the whole corner line (shown by red colour). 

Question 7.

In Figure 7, Members AC and BC are pins connected at C and attached to blocks, each of weight W. Knowing that θ = 800 and that the coefficient of static friction between the blocks and the horizontal surface is μs = 0.30 determine the largest value of P for which equilibrium is maintained. Weight of the members AC and BC are negligible.

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