Engineering services

Taking your project to the next level

ENGINEERING DESIGN CONSULTANTS &
FINITE ELEMENT ANALYSIS

ENGINEERING SOLUTION PROVIDER
We are engineering design consultants, providing services to wide range of clients ranging from
civil, automotive to oil & gas industry. We have more than 30 years of combined experience be-
tween us in various engineering sectors. We invest in our people and technology to make sure
our engineering capability is top notch. Our services are affordable with reasonable charges yet
we do not take shortcuts that compromise the integrity of our design, or our attention to detail.
At EDSIL, our clients’ complete satisfaction is of paramount importance to all of us.

"At EDSIL we aim to establish meaningful relationship with our clients which
ensures the delivery of high quality, cost effective engineering solutions
every time.”

TAKING PRIDE IN WHAT WE DO

DRAUGHTING SERVICES
We provide engineering design and Computer Aided Design services, using the latest tools avail-
able to keep us abreast with the latest technology in the industry. We provide 2D and 3D CAD
draughting services that suit your needs at competitive charge. We invest heavily in our design
software and facilities including several plotters to print your drawing of up to A0 size paper.

“We are committed to serving our clients
and providing the highest quality services
and innovative solutions.”

FINITE ELEMENT ANALYSIS
Apart from engineering and Computer Aided Design services, we offer in-house state-of-the-art
simulation services for the stress analysis of solids and structures in statics and dynamics. The
analysis can be linear (small strain, linear elastic materials) or highly nonlinear. We take your
ideas and an understanding of the conditions they will be used in and create a set of virtual ex-
periments to show how the design responds to real world situations. We can examine deforma-
tion, stress and strain response to loading, in single parts or in assemblies with multi part contact.
We can look at mechanical events, motion of parts, kinematics, and impact.

The following shows the magnitude of examples of analysis that we performed.

Transient Sequential Thermal-Structural Analysis

• Metal forming analysis- large displacement, plastic flow,
transient analysis.
• Highly nonlinear-material and buckling nonlinearity.
• Examples shown in the pictures are the analysis of
metal forming of sheet and tube by laser scanning. The
analysis can be uncoupled into sequential thermal and
stress analyses The thermal problem is solved first to
obtain the temperature field, which is then used as ther-
mal loading for the structural problem. The same mesh
is used for both thermal and mechanical calculations.
The problem can be represented by only half of the
plate modelled with symmetric boundary conditions. The
temperature field caused by a moving laser beam is
transient in nature. Laser heating is modelled as moving
heat flux used to incorporate the laser beam motion.
The temperature-dependant material properties are con-
sidered including thermal conductivity, specific heat,
thermal expansion coefficient, Poisson’s ratio, elastic
modulus, yield stress and density. The temperature dis-
tribution, deformations, plastic strains and residual
stresses were analysed.

[C][T]+[K]{T} ={Q(t) }
&

EDSIL, Unit 17, Evans Business Centre, Dane Street, Rochdale, Lancashire, OL12 6XB, United Kingdom
Tel: +44 (0)1706 343933 Email: Projects@edsil.co.uk Fax: +44 (0)1706 525080
Website: www.edsil.co.uk

ENGINEERING DESIGN SERVICES INTL LTD

Finite Element Analysis Services
Contact Analysis

• Linear contact (glued), frictional, fric-
tionless, offset etc.
• Various type of contacts (ie; rigid to
deformable, surface to surface, sur-
face to edge etc)
• Gasket analysis
• Examples shown in the figure are
gears meshing used in rack and pin-
ion system. Frictional contact were
considered between the gears. Cylin-
drical boundary condition was used
to model gear rotation, with fixed
radial and axial direction. Also pivot
joint for a construction tying applica-
tion.

Linear & Non linear Static Analysis
• Material non-linearity (bilinear strain-
stress behaviour, hardening, etc.)
Before After
• Elastic to plastic material transfor-
mation
• Geometric non-linear buckling or
material failure
• Large displacements or rotations
• Non-linear boundary conditions
• Example shown in the picture is a
drive carriage parts for a 5 tonne
capacity lift. The FEA was vital part
of the design where it enhances the
structural integrity of the compo-
nents due to its extreme loading
conditions.



Oil & Gas –Offshore bleed ring
Problem
Verification of the structural integrity of a non-standard
bleed ring for oil rig application. The task is to provide
mechanical design calculation to confirm the adequacy
of the thickness of body, bolt load and gasket operat-
ing performance. Analysis should ensure that the bleed
ring can withstand the subjected assembly load and
vibration during normal operating condition.

Analysis
Taking asymmetric advantage only half of the adapter
is modelled. Bolts pretension on the adapter body is in
accordance with the API Recommended Torques for
flange. Bolts pretension on the nipoflanges is derived
from requirement in B16.5. The analysis has consid-
ered two time steps; 1. bolts pretension and 2. applied
internal pressure of up to 5000psi.
The stresses were compared to those allowed for the
material used and assessed against industry standard.

Outcome
EDSIL analysis showed that the the proposed body
thickness is sufficient to withstand the combination of
bolts pretension and internal pressure and working
within its strength capacity.

“Let us do the THINKING for you”



Civil structure– Beam analysis
Marina Bay Sands - Mobile Cladding Access Plat-
forms:

We were asked to provide design for cladding access
platforms for what is now the worlds most expensive
hotel, Marina Bay Sands, Singapore. One of which
was a mobile suspended platform for to provide ac-
cess to the underside of the Sky Park 200m above
ground level. The platforms had to run on two tracks
embedded in the structural steelwork and the platform
had to be fully clad which meant wind loading would
be a major factor in the design.

The platform was modelled using beam analysis.
Loads combinations including high wind loading were
considered according to national standard. The plat-
form was made of aluminium profile, and therefore
BS8118 was used as a verification method.

Also, a bespoke mobile trolley was design for the sus-
pended structure. As this is a one of the critical item in
the system, the trolley design was also verified by
FEA.

Solid FEA-Bespoke mobile trolley

"At EDSIL we aim to establish meaningful relationship with our clients which ensures the delivery of high quality, cost
effective engineering solutions every time. We are committed to serving our clients and providing the highest quality
services and innovative solutions. We do not take shortcuts that compromise the integrity of our design or our atten-
tion to detail. At EDSIL our clients' complete satisfaction is of paramount importance to all of us."


Manufacturing-shell analysis

Problem
To verify the structural integrity of a sheet metal board
in accordance with BS EN12811-2. The actual boards
of 1.5, 2, and 2.5m length were supplied to us for in-
house testing and verification.

Testing & Analysis
EDSIL has conducted a series of in-house testing as
required by the code. Comparing with initial hand cal-
culations, the boards failed against the initial design
concept of a locked seam. Having to reassess the de-
sign as behaving with a far more complex geometry
has been difficult. We have then conducted a shell fi-
nite element analysis and ignoring the locked seam
effect.

Outcome
We have finally been able to analyse the section in a
manner that allows the seam to slip. This has drasti-
cally reduced the theoretical board capacity to a point
below the tested results. With the test results now be-
ing moderately above the theoretical design capacity
the tests can now be viewed as proving the capacity of
the design. This is a requirement for passing these
boards as certifiable to BS EN 12811-3 and giving
them a partial designation in accordance with BS EN
12810-1 clause 5.

EDSIL services:


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