ENGINEERING ANALYSIS FOR FYP PRODUCT (CDM1372)

PDM2 SEM5

Group members • MUHAMMAD ZAKWAN BIN AHMAD ZUBIR

• NOR ALANA BINTI ROSLI

• MUHAMMAD SYAHID BIN SHAMSHUDDIN

• MOHD BASIR BIN ABDUL RAHMAN

• TTO’S NAME: Sir KHAIRULNIZAM BIN ROSLAN

CONTENTS NO CONTENT

1 OUR PROJECT/PRODUCT

2 PROJECT DESCRIPTION

3 THE DESIGN

4 OBJECTIVE

5 RESULT SUMMARY

6 ASSUMPTION & NODES

7 CAD MODEL

8 FE MODEL

9 MATERIAL DATA

10 LOADS

11 BOUNDARY CONDITION

12 SIMULATION RESULTS

13 CONCLUSION

OUR PROJECT/PRODUCT

Our proposed product for FYP is the ‘floating bed’. It is actually a single size bed that able to float by flipping it upside down. To ensure the product can work properly as a bed. We have to do the analysis on bed structure. This to ensure the bed frame can support the load of the user.

PROJECT DESCRIPTION • The floating bed is a single size bed that able to float

during the flood

• It is made from aluminium alloy that is light and strong.

• After the design is finalised, and CAD modelling is

completed, the analysis is made

• Through an analysis, the rigidity of the structure can be

define and improvement can be made if necessary

THE DESIGNS

Our product consist of 17 individual parts where each of it provide the specific purpose

OBJECTIVES • To study the maximum of pressure loading during human while lying to the bed frame, with structural of

hollow aluminum. By using the yield strength of aluminum 90MPa can determine the limits of pressure

loading to frame.

• Solver & Software details

Pre-processing : Hyper Mesh 12.0

Analysis & Optimization : Optistruct 12.0

Post processing : Hyper View 12.0

• Units

Displacement : mm

Modulus : MPa

Force : Newton

Mass : Tonne

Density : Tonne/mm^3

RESULT SUMMARY LOAD CASE

Displacement (mm) 1.67

Von Misses Stress (MPa) 31.5

Material that we used is aluminium alloy. The material

have yield strength of 90MPa. With stress value of

31.5 MPa, the frame is within yield strength of

aluminium alloy

ASSUMPTIONS & NOTES

Structural linear static analysis has been performed on bed frame at 200 kg load when a the

user is laying onto the bed frame using OptiStruct.

Element Type :

Material Data :

Loads :

Boundary Condition:

Aluminium has been modelled as linear and has been assigned to the bed

frame

Bed frame are modelled using combination of quad and tria elements.

All components are assembled with the help of rigid and elements and

wherever possible node connectivity is maintained

The load applied to the base frame is 200kg and acting towards centre of

the frame

Every corner near the support location

MATERIAL DATA

FE MODEL

LOAD AND SUPPORT POSITION

Material thickness is

5mm

SIMULATION RESULT

Von Misses Stress

STRESS WEAK POINT

Circle area is the weak point of the

structure. However the stress value is

still below the max yield strength

SIMULATION RESULT

Displacement

CONCLUSION • Stress value of 31.5 MPa is still below the yield

strength of Aluminium alloy

• Displacement at 1.67mm is still in acceptable range

• There are few stress weak point on the bed frame

that need to be carefully monitored

• Essentially the product structure is safe and still have

a room for improvement especially on material

thickness.