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.