This question requires you to use Ansys.You are required to determine the vertical deformation of the leg due to the applied

loading. To do this, follow the steps below, providing screenshots where requested.

Ensure that these screenshots are of the entire screen rather than a small, cropped

section. Note that where explanation of your actions and decisions is required, this does

not include details of which buttons you pressed.

i$.$ First separate the leg from the assembly so that it can be analysed separately.

Provide a screenshot of this once complete.

$(5$ marks$)$

ii$.$ Now, prepare the model so that the vertical deformation of the leg due to the

applied load can be established. Provide an explanation and a screenshot of each

step you perform; this should include meshing, boundary conditions, probes, etc.

$(15$ marks$)$

iii. Solve the model and produce a summary of your findings, including stress analysis

and a screenshot of your results.

$(10$ marks$)$

iv$.$ It is difficult to verify a model with such a complex geometry directly using an

analytical solution. Instead, a simplified geometry that can be analytically verified is

modelled, using the same mesh, properties and constraints $($please do not confuse

this with the activities in week $8$ where simplification was done to save

computational power$).$ Once this simple model is verified, it is assumed that by

extension the more complex model is verified. Using this approach, verify your

model, stating your assumptions.

$(10$ marks$)$

v$.$ Based on the verification of the simplified geometry in part iv$,$ discuss whether your

original model is verified and whether your mesh requires refinement.

$(5$ marks$)$

a$.$ Starting with the castoring wheel assembly that you created in Activity $4\mathrm{.}3$a$,$ create a

static model of just the leg section of the assembly $($as highlighted in Figure $1).$ This is

the central section, ignoring the wheel and the upper cylinder. It should be modelled

using the following material parameters:

structural steel

Young's modulus of $206$GPa

Poisson's ratio of $0\mathrm{.}3$

and subjected to a vertical axial load of $250kN.$

$($i$)$

Figure $1$ Castoring wheel assembly: $($i$)3$D model; $($ii$)$ plane view