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Resume foR poweR_tRain Related woRk(nVH & duRability
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CURRICULUM VITAE
Manas Ranjan Ray
[phone] +91-8908912080
[e-mail] manasray.ctc@gmail.com , manas_ranjanray@hotmail.com
Career Objective:
To pursue a career in an organization working in CAE field where I can put my
best effort and knowledge and enrich it.
Education:
• B.E (Mechanical Engineering) from Utkal University.
Passed out on Aug, 1999, with securing marks of 66.81%.
• +2 Science from C.H.S.E. board, Orissa.
Passed out on 1994, with securing marks of 53%. .
• 10th from H.S.E. board, Orissa.
Passed out on 1992, with securing marks of 56.8%..
Certifications:
PENTASOFT certified MCAD Engineer in CATIA-V4, MSC. PATRAN and
MSC.NASTRAN
Tool Skills/Abilities:
CAD/CAE tool:-
Catia, msc-nastran, msc-patran, hyperworkes, abaqus
Presentation tool:-
Ms-word, Ms-excel, Ms- PowerPoint
Technical (methods and process) skills:-
CAD skill:-
1. Part modeling 2. Assembly modeling 3. Surface modeling 4. Sheet metal
modeling. 5. 3d to 2d drafting and dimensioning.
FEA modeling and assembly skills:-
1. Modeling skills:-
a. Zero dimensional element (representation of mass element,
coincidental element)
b. One dimensional element ( use of rigid element, beam element, rod
element, spring element, bush element etc)
c. Two dimensional element (able to use quard element and tria
element with uniform and variable thickness with best practice of
industry)
d. Three dimensional element ( able to use hex, penta, tetra element
with best practice of industry)
2. Assembly skills:-
a. Solid to shell connection
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b. Solid to zero dimensional element connection.
c. Bolting connection with solid element and one dimensional
element.
d. Welding of shell and solid component connection by the use of solid
element.
Fea analysis skills:-
1. Static analysis (with constrained & without constrained)
a. Linear
b. Non linear
2. Buckling analysis
3. Normal mode analysis (with constrained & without constrained)
4. Frequency response analysis (with constrained & without constrained)
a. Modal method
b. Direct method
5. Transient analysis (with constrained & without constrained)
a. Modal method
b. Direct method
Software skills:- (Basic Knowledge/Exposure)
• Operating Systems
UNIX, Windows 2003, Windows XP
• Languages
C, C++, BASIC, FORTRAN-77
Work experience till date with 6years and 9mounth of industrial
experience:-
Current activity:-
Verification and process development for NVH & DURABILITY optimization of CAD
model by FEA DOE method. In this regard,
Wipro Technologies, Bangalore parent company of Quantech Global Services Ltd. from
Oct 2006 (Apr 2003- Oct 2007):
Designation:- Senior Project Engineer (B2-band) in CAE- automotive(modeling & analysis)
Worked in various assignment related to automotive FEA domain for various clients. I
was on onsite assignment in GENERAL MOTORS TECHNICAL CENTER INDIA,
Bangalore from Sep 2004 to Feb 2007.During my period of incumbency, I acted as a
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Resume foR poweR_tRain Related woRk(nVH & duRability
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team member, project leader and project reviewer in various assignments.
As a Team member Role and responsibility:- Completion of assigned job within the
time frame with taking consideration of request made by the client. Preparation and
maintenance of documents related to the projects for internal audit or for ISO audit.
As a Project leader role and responsibility:- Initiation, estimation, ensure proper
coordination between team members in the project, put forward the query related to the
project in the team meeting; maintain all the documents related to the project as for the
ISO standard.
As Project reviewer role and responsibility:- To help project leader in estimation work.
Cross verification of documents related to the projects as per the ISO standard and the job
done by the team and project leader as per the requirement.
Pentasoft Technologies, Bangalore (Mar 2001 – Mar 2003)
Designation:- Asst Project Engineer, CAE (modeling & analysis)
Worked as an assistant to the project engineer after completion of full time training course in
MCAD (CATIA-V4, MSC-PATRAN &MSC-NASTRAN soft wares). Subsequently I worked in
various pilot projects related to aerospace and automotive domain.
1. Deba Automobiles, Cuttack (Dec 1999 – Feb 2001)
Designation:- Maintenance Engineer
As a maintenance engineer, I used to take decision related to operational and technical
activity of the company.
Current project description related to NVH & durability
following is the description of some project work done.
Objective:
1. To design and upgrade deferent types of bearing casing in assembly or in individual
in static and dynamic condition by consideration of mass optimization and material
optimization and develop analysis method to create a practical environment.
2. To develop methods to analyze the engine block (inline-2bore) with taking
consideration of loads (variation of pressure load with respect to axial displacement
& variable pressure load at journal bearings) in static and dynamic condition.
3. To develop methods to analyze and improve the blades profile mounted in a disc
with taking consideration of loads (time dependent thermal load, variation of
pressure load with respect to frequency) in static and dynamic condition.
4. To improve the design of safety valve assembly under extreme operating condition.
Model was tested in following condition:-
 Static load at fastening location.
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 Dynamic load at fastening location.
5. Verification and up gradation of sheet metal CAD assembly on static and
dynamic condition.
Tools used:-
Hyperworks V9.0, Patran, Nastran V2005, Catia v5.R16 & Abaqus v-6.4-
6.6.
Role:-
 Creation and design optimization of cad model by the use of cad tool
like Catia.
 Creation of FEA model by the use of Hypermesh/Patran.
 Creation of analysis method by taking consideration of environment
condition by the help of Hypermesh/Patran in static and dynamic
condition.
 To perform the analysis in Nastran/Abaqus for verification of
displacement and stress value.
 To perform the at most design updation in CAD tool by considering the
output results with reducing mass and using low cost material.
Assumption made:-
• Those portions were in contact with other component in the assembly
or to the ground were given support along the direction of resistance.
• Bolting area of contact was fully constrained.
• Bearing load applied by the help of RBE3 and by creation of load field in
patran.
• The range of load is between 1N to 1000N.
• The frequency range was 0.0Hz to 3000Hz.
Projects assigned on above mentioned companies
Program related to transmission and transmission accessories:-(for auto and manual
transmission)
Environment : HYPERMESH, ABAQUS
NVH /durability optimization of real wheel drive power train assembly (engine assembly,
adopter, bail housing and transmission case)
Job:-
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1. 2nd
order Tetra modeling of bail housing with capturing small features with high precision
(avg element size-7mm).
(The modeling was done for all design changes made in bail housing and adopter to get
the desire output in inertia relief frequency response analysis)
Durability optimization of front & rear wheel drive transmission casing assembly.
Job:-
1. 2nd
order Tetra modeling of both housing with avg element size of 7 mm.
2. 2nd
order Housing mounting with maintaining matching nodes at the bolted location.
3. Modeling of coincidencial spring to represent rubber mount for point excitation along
X,Y,Z directional point load.
4. Modeling of housing fastener bolt with 2nd
order tet element with matching element at
threaded portion and maintain a plane section along the stud perpendicular to the axis of
the bolt
(The modeling of casing and mounting for deferent design change done in CAD model
was done to achieve the required result)
Durability optimization of valve body assembly of auto transmission system.
Job:-
1. 2nd
order tetra modeling of valve body housings with avg element length of 5mm.
2. 2nd
order penta modeling with 2 rows of element set in gasket with capturing of 0.1 mm
hole passage.
3. The gasket modeling done by making sure of matching element with the housing contact
place.
4. The bolted locations were meshed with map as a rectangular pattern to capture curvature
and 2 rows of circle around circle maintained for washer.
5. Hex modeling of purge valve section assembly for method verification of solenoid
mechanism in working condition.
5.1.1. The slice containing the solenoid mechanism casing was modeled with hex
element with maintaining 2rows of elements along the thickness.
5.1.2. The circular face was captured with high precision with projecting nods to the
circular face.
Hexa Modeling of one set of gear for method development which can verify the torque effect.
Job:-
1. The gear teeth profiles were meshed with hexa element.
2. Along the width and along the height minimum 2rows of element were
maintained.
3. Two sets of model were delivered .With capturing fillets and without capturing
filets.
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Program related to engine and engine accessories:-
Environment : HYPERMESH, ABAQUS
1. NVH & durability optimization of FOUR CYLINDER IN LINE ENGINE assembly.
(for method development)
Job for NVH:-
a. Hexa modeling of engine assembly(block, head, oil pan, cam cover, chain cover
& bed plate)
b. Shell modeling (outer surface and mid surface) of oil pan, cam cover and chain
cover for sisnoice result verification.
c. 2nd
order tetra modeling of chain cover, cam cover and oil pan with capturing
bolt holes and chamfers with map as a rectangular option.
d. Close volume shell modeling of oil pan, cam cover and chain cover with normal
direction outside of the geometry.
e. Modeling of oil pan with fluid label was done by maintaining nodes as for the
label mark given.
Job for durability:-
a. 2nd
order tetra modeling of DIS bracket with capturing all small features with
high precision and with good transition. All filets bolt holes were capture by
map as a rectangular algorithm.
b. 2nd
order tetra modeling of attachment mountings were modeled with same
process mentioned above with maintaining matching mesh with the
adjacent component mesh.
2. NVH & DURABILITY optimization of EXHAUST MANIFOLD casting component.
(for method development and enhancement of design with respect to dynamic
environment)
Job for NVH and durability:- ( deference is the density of element used )
a. Each model has to be model with 2nd
order tetra element and hexa element.
i. In 2nd
order tetra modeling the fillets, tubular feature bolt holes were
captured with map as a rectangular algorithm and the stress region
good transition of element was maintained. The element density was
managed as per cordial deviation in geometry.
ii. In hex modeling the same features were captured with high precision
without any T-edge. In the total model. I have created a method to
make the hex modeling simpler and faster with high precision which
help me in my modeling work. It is implemented in various models and
it is working perfectly.
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3. NVH & DURABILITY optimization of INTAKE MANIFOLD component.(for method
development and enhancement of design with respect to dynamic environment)
a. 2nd
order tetra modeling was done for individual close volumes exist in the total
intake manifold.
b. Every individual close volume was maintained matching mesh at the
interference location.
c. Bolt holes, fillets and small features were captured with high precision and with
smooth transition.
4. NVH & DURABILITY optimization of ENGINE MAIN CRANK component.(for
method development and enhancement of design with respect to dynamic environment)
Job done for NVH & durability:-
a. To update the new geometry by old 1st
order tetra mesh and convert the things
to 2nd
order with mid node associated to the surface.
b. Every surface and face of the tetra element was segregated to deferent
collectors as per convenience.
c. Any changes were modeled with 2nd
order tri element and close volume verified.
d. The above steps were carried out for both NVH & durability model.
Job done for durability:-
a. A single arm of a crank was taken for geometry optimization.
b. The existing FEA models were up dated for analysis in abaqus.
c. Updation work done in the model were element type, material property, set of
faces to be consider for load and boundary condition ,grounded spring element,
time step and output request for set of elements.
(This process is followed for models assigned with changed in design)
5. Durability optimization of CONNECTING ROD. (for design enhancement under
nonlinear environment)
a. 2nd
order tetra model was done with capturing fillets ,bolt holes, pin hole and
main bearing holes with map as a rectangle algorithm.
b. The connections were done as per the base line model given for reference.
c. Node and element numbering were done as per the abaqus card given.
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Component label work:-
1. FEA modeling of V6,V8,V12, inline engine block, head for deferent analysis
requirement (NVH & durability)
Job:-
a. 1st
order /2nd
order tria modeling of sub components ( water jacket, oil
wetted region, outer surface, combustion chamber, misc, bolt holes, oil
tubes and bearing surface)
b. Close volume creation and tetra generation.
c. Quality rectification of tetra element.
Personal Particulars:
Permanent / correspondence Address:
S/O:- Pratap Chandra Ray,
A.T:-Town Hall Road, P.O:- Telenga Bazaar, Cuttack, Orissa-753009.
Date of Birth: 07/05/1977
Sex: Male
Marital Status: Single
Nationality: Indian
Hobby: Listening Music, chart and give comments in current affairs in face book,
tweeter, linked-in, create deferent FEA methods to achieve some end to
end solution and learn some methods by reading help files.
Declaration:-
I hereby solemnly declare that the aforesaid facts submitted by me are correct and true to the
best of my knowledge.
Date :
Place : Bangalore (Manas Ranjan Ray)
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