CURRICULUM VITAE

Manas Ranjan Ray[phone] +91-9901036855[e-mail] ray.manasray@gmail.com, manas_ranjanray@hotmail.com

Career Objective: To pursue a career in an organization working in CAE field which believe in innovation where I can put my best effort and knowledge and enrich it.

Current activity:-Currently involve in various activities. As far as technical activities are

concerned, I am enhancing my software skills and exercising my previous expertise, which shall give me good value in the organization and also my skills can be properly utilized by the organization for their best interest.

Work experience till date:- (7years and 9mounth of experience)1. 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 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.

2. 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.

3. 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.

Education:

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• B.E (Mechanical Engineering) from Utkal University. Passed out on Aug, 1999.• +2 Science from C.H.S.E. board, Orissa. Passed out on 1994.• 10th from H.S.E. board, Orissa.

Passed out on 1992. Certifications: PENTASOFT certified MCAD Engineer in CATIA-V4, MSC. PATRAN and MSC.NASTRAN

Tool Skills/Abilities:CAD modeling tool:-CATIA V4 &V5:-

• Part modeling, Wire frame /surface modeling, Generative drafting, Part assembling & Importing/Exporting CAD related data.

FEA pre & post processing tool:-HYPERWORKS & MSC-PATRAN:-

• Able to Import/export the CAD model and also able to edit the CAD model or geometry(i.e segregation of geometry and creation of missing parts in the model)

• Able to do Finite Element modeling (solid, surface, 1D &zero dimensional) from CAD models by the use of deferent suitable formulated Finite Element.

• Able to create PCL function for application of variable load, variable material, variable geometry with respect to time/frequency/coordinate system.

• Able to modify analysis deck and post process the out put files related to MSC-NASTRAN or ABAQUS.

FEA processing tool:- MSC-NASTRAN & ABAQUS:-

• Able to do static analysis (with constrained model and without constrained model it is nothing but inertia relief analysis) and buckling analysis.

• Able to do modal analysis to find out the EIGEN modes, corresponding frequency value, displacement value, stress value (with constrained model and with without constrained model).

• Able to do frequency response analysis and transient analysis (modal & direct) to find out displacement, velocity, acceleration, stress, strain, SPC load etc with respect to the exciting frequency. The exciting load may be force or pressure.

• Able to do thermal analysis (conduction, convection and radiation) to find out the heat flux and temperature distribution through out the Finite Element model by the help of MSC-PATRAN.

• Able to do static thermo-structural analysis by the help of MSC-PATRAN.

Software skills:- (Basic Knowledge/Exposure)• Operating Systems UNIX, Windows 2003, Windows XP• Languages

C, C++, BASIC, FORTRAN-77

Some Projects assigned on above mentioned companies

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Projects assigned in Wipro Technologies, Bangalore project assigned:-

Finite Element Modeling And Updation Of Finite Element Model With New Geometry Of V6_Cylinder Engine Assemble.Input data :

• CAD geometry of V6-engine block and baseline Finite Element assemble model.Requirement:-

1. The solid element should be 2nd order tetrahedral.2. The total 2nd order tetrahedral assemble node count should be less than the

base line assemble model.3. The quality should be good enough for the processing solver.

Tool used : HYPERMESH, MSC-NASTRAN & ABAQUS template Team size : 3Job done as a project leader:-

• Planed and take necessary action to complete the project within the time frame and delivered the project with quality more than the required quality.

• Segregate the CAD geometry of V6 block for Finite Element modeling and separate the critical features for refined mesh.

• Adjust the mesh parameter in auto mesh option in the tool to capture the surface fillets with great precision with smooth transition.

• Cheeked the work done by the team member.Important modification identified in the assemble:-

• With replacement of old engine block with new one, the boundary of adjacent components were matching but the bolt axis were not matching.

• The axis of rotation of crank is not matching with the transmission main bearing axis.

• Bolting bush slot are missing in adjacent component with respect to the engine block.

• Bearing caps are not as for the new engine geometry. My input irrespective of the project requirement:-

• Modified the bolt holes and bushing slot in the adjacent component with respect to the new engine block.

• Modeled a new bearing cap by the help of finite element modeling tool by taking care of engine block’s bearing portion design.

• Positioned the transmission casings main bearing axis with the new engine crank axis of rotation by transverse positioning of the transmission casing bearing region Finite Elements.

• Modified the mesh of adjacent components with matching mesh to avoid the boundary condition non linearity.

project assigned:-Finite Element Modeling and Updating Of New CAD Geometry, Of Full Body In

White (BIW) Structure Of A Vehicle Similar To Hummer.Input data:-

New CAD model and old Finite Element model assemble.Requirement:-

• To modify the old mesh with new geometry or to do fresh mesh for the new geometry.

• The delivered Finite Element models should be placed with the corresponding CAD geometry collector and the finite element mesh should be at the mid plane.

• The quality of elements should meet the quality mentioned in the quality sheet. Tool used : HYPERMESH, MSC-NASTRAN template

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Team size : 15Job done as a team member:-

• Modeled the components assigned as for the quality sheet and the input given by the project leader.

Job done as a temporary project reviewer:-• Verified the model done by the team member as for the requirement and how much

component label knowledge put in the assemble.• Gave feed back for the work done by the modeler, as for my knowledge or

experience.

project assigned:-Finite Element modeling and updation of new CAD geometry, of transfer case.

Input data:-New CAD model and old Finite Element shell coated model.

Requirement:-1. To do the fresh Finite Element modeling work to those portions which are

not matching to the New CAD surface geometry.2. The New Finite Element model should contain 1st order triangular element

with quality as for the quality sheet.Tool used : HYPERMESH, MSC-NASTRAN template Team size : 2Job done as a team member:-

• Segregated the new CAD model in to planer surface and filleted surface and also the Finite Element shell model given by the client respectively.

• Meshed those portions of the geometry, whose corresponding elements were not on the geometry or some new features were added.

Job done as a project reviewer:-• Verified the project leader’s work, contribution in the project and how much finite

element knowledge put in the project for its success in analysis.

project assigned:-Finite Element modeling of plastic CAD geometry, having clamps and ribs containing

draft-allowances.Input data:-

CAD geometry of the plastic component.Requirement:-

1. The shell mesh should be at the mid plane.2. The Finite Element mesh type should be triangular element for mold flow

verification.Tool used : HYPERMESH Team size : 1Job done as a team member:-

• Extracted the mid surface were its possible. Those portions where to find the mid surface is difficult in hypermesh tool, I had done the mid surface manually by the help of tool.

• Verified and captured all the criticality in the CAD model which may play vital role in mold creation.

My input irrespective of the project requirement:-• Assigned thickness to drafted ribs, clamps and the body as per the thickness of

the CAD geometry.

Onsite Projects undertaken in GMTCI, Bangalore project assigned:-

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Dynamic boss stiffness analysis of inline 4-cylinder engine assemble at bolting location of engine gear box, Engine F/I pump, Generator bracket and A/C compressor bracket.Input data and document given:-

• Finite Element model of inline 4-cylinder engine assemble with 1D bolt connection.• Document related to the analysis process, material property of individual

component and loading points where engine gear box, Engine F/I pump, Generator bracket and A/C compressor bracket has to be assembled.

• Msc-Nastran deck to carry out the modal frequency response & direct frequency response analysis without any support.

• C- Program code to extract dynamic stiffness value from the displacement value with respect to frequency for each load case (x-directional, y-directional and z-directional load). It also gave the out put file input for MATLAB simulator.

• MATLAB code to plot the dynamic stiffness variation with respect to frequency for x-directional, y-directional and z-directional unit loading at different boss location for different assemble.

Requirement:-• Perform the analysis (modal & direct frequency analysis) as per the input given.• Stiffness VS frequency plot with respect to X, Y and Z directional unit load.• The analysis to be performed separately for engine gear box interface, Engine F/I

pump interface, Generator bracket and A/C compressor bracket.Tool used: HYPERMESH, Nastran2005, C-language and MATLAB simulator Job done as a team member:-

• As per the input given, the math assemble for engine gear box interface, Engine F/I pump interface, Generator bracket and A/C compressor bracket was created and done the modal frequency analysis for displacement by the application of unit load at the boss location.

• The out put punch file was used by the C-code to find out the dynamic stiffness value with respect to the frequency.

• The out put file from C-code was used as an input file for MATLAB simulator.• The boss stiffness value was used as a stiffness value of spring representing bolt

stud. The spring was used as a fastener between the engine and the brackets.• The direct frequency analysis was performed to find out the displacement at some

locations in the bracket where the maximum stress should develop or displacement should be minimum.

• By the help of project leader the analysis was accomplished. Learned from the project:-

• Representation of fasteners with one dimensional element not worked as for the expectation.

• Got a good exposer to C-programming and MATLAB programming codes.• Use of INCLUDE statement of MSC-NASTRAN.

project assigned:-Updation and quality improvement Of Math Model Of A New CAD Geometry

Assemble Of Body In White (BIW) Structure Except Flower And Engine Compartment Assemble Of A Vehicle Similar To Travera.Input data:-

New CAD model assembles, RMA tool generated MATH/Finite Element assemble model and old Finite Element assembles model available in the data base related to the old designs.Requirement:-

• Selection of best finite element model from the given in put finite element assembles for the new cad model and create the new MATH assemble model.

• The final assembles should pass all quality criteria.

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Tool used : HYPERMESH, MSC-NASTRAN template Team size : 2 Job done as a team member:-

• Extracted the mid surface of individual components in assemble and selected the finite element models for corresponding geometry.

• Created a separate assemble for mid surface and the corresponding matching finite element models.

• Selected the best finite element assemble out of the given inputs. • Assigned thickness, material property, element property to the individual

component in the assemble and verified the element quality.Learned from the project:-

• The big task was to finalize the best Finite Element model out of the supplied in put for the new assemble.

• It was a good project experience to enhance the process knowledge and organizing capability.

• Got a good exposure of an automated tool like RMA which can full fill all the requirements of an industry as far as quality standards are concerned.

• It was a good exposure in project management.

project assigned:- Updation And Modeling Of Exhaust Pipe Assemble Of Automotive Vehicle, had Components Like Catalytic Converter, Muffler, Resonator, Tailpipe/Exhaust Tip, Connection Pipes, Hangers, Brackets And Isolators.Input data: New CAD Assemble of exhaust pipe and reference Finite Element assemble with connections.Requirement:-

1. Finite Element modeling of individual component present in the CAD assembles with connections to make sure the assemble perfect for further analysis processing.

2. Individual components had to be modeled with reference to the Finite Element assemble given and the quality of Finite Element assemble should be as for the quality sheet provided.

Tool used : HYPERMESH, MSC-NASTRAN template. Team size : 1 Job done as a team member:-

• Modeling and assembling was done as per the reference model. • If there was any problem in the CAD assemble which affect the final finite element

assemble then manual modification was done by the help of FEA modeling tool.Learned from the project:-

• Almost all connection possible in the FEA field to make the Finite Element assemble as perfect as possible as real proto type used for practical testing in mass production units.

• The FEA connections like 1D connection, shell to solid connection, representation of some components by one dimensional or zero dimensional elements.

Project assigned:-

Finite Element Modeling Of Exhaust Manifold Of Inline And V-type Engine.

Tool used : HYPERMESH, MSC-NASTRAN and ABAQUS template.Team size : 2

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Input data : CAD geometry of Exhaust Manifold and quality sheet.Requirement:-

• Finite Element modeling of Exhaust Manifold.• Required element formulation was (HEXAHEDRAL or TETRAHEDRAL or both).• The delivered model should pass all request made by the client trough quality

sheet.Job done as a team member:-

• Segregated the complex CAD Geometry to make it simpler for Finite Element modeling.

• The critical portions were captured with great precision. And smooth transition was given.

My input irrespective of the project requirement:-• Defied and experimented the process of Finite Element hexahedral modeling of

exhaust manifold with taking consideration of important features. It reduced project hours and made modeler much more comfortable to Handel this type of model.

Project assigned:- Finite Element Modeling Of Purge Valve Assemble (Upper Valve Body, Lower

Valve Body, Gasket And Bolts), Which Contains The Hydraulic Circuit To Control The Gear Engagement Of Auto Transmission System. Tool used : HYPERMESH, ABAQUS template.Input data :

• CAD geometry of purge valve casing assemble.• Colored print out of hydraulic circuit diagram to identify or differentiate the

passage grove made in the casing for different pressure level of fluid.• Finite Element modeling quality sheet.

Team size : 1Requirement:-

• Finite Element modeling of individual components (i.e. upper valve body, lower valve body, gasket and bolt) in assemble.

• The delivered model should be 2nd order tetrahedral element with C3D10M element formulation.

• The delivered model should pass all requests given by the analyst through quality sheet.

Job done as a team member:-• Imported all the components assigned and created respective collectors.• Segregation of individual components done to make it simpler for Finite element

modeling. • After converting CAD model to finite element modeling model. The face was

selected as for the hydraulic circuit diagram to make it comfortable for the analyst to identify the high pressure fluid interaction regions.

• Gasket was modeled with taking the faces of the two valve bodies contact portion.• Fastening bolts were modeled with 2nd order tetrahedral element.• The total assemble was handed over to the analyst as for the request.

Learned from the project:-• Got a good knowledge of important parts of an auto transmission system.• Got idea about the mechanism which controls the gear engagement in auto

transmission system. My input irrespective of the project requirement:-

• Gave valuable suggestion related to the bolting dislocation caused by the absence of bolting bush.

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Project assigned:- Finite element modeling and updation of front wheel drive clutch and gear

housing CAD assemble with mountings.Tool used : HYPERMESH, ABAQUS template.Input data :

• CAD assemble with reference finite element assemble.• Finite element modeling quality sheet.

Team size : 1Requirement:-

• Individual Finite element modeling of components in the CAD assemble.• The delivered model should be 2nd order tetrahedral element with C3D10M element

formulation. • The delivered model should pass all requests given by the analyst through quality

sheet.Job done as a team member:-

• Imported all the components assigned and created respective collectors.• Segregation of individual components done to make it simpler for Finite

element modeling. With taking consideration of the portion’s criticality in assemble.

• Modeled the components with reference to the input finite element assemble.• Assembled the Finite Element models with providing pretension option in the bolt.

project assigned:- Finite element modeling and updation of bell housing and adopter in the total

engine Assemble for a rear wheel drive vehicle.Tool used : HYPERMESH, MSC-NASTRAN template.Input data :

• CAD geometry of adopter and bell housing.• Quality sheet related to Finite element modeling.

Team size : 1Requirement:-

• Finite element modeling of adopter and bell housing CAD geometry.• The delivered model should be 2nd order tetrahedral element. • The delivered model should pass all the requests given by the analyst.

Job done as a team member:-• Imported cad models were segregated to make it simpler for Finite element

modeling.• The critical portions which were identified in the analysis result were captured with

great precision.

Project assigned:- Finite Element Modeling Of Inline 4- Cylinder Engine Assemble (Engine Block,

Head, Bedplate, Oil Pan, Front Chain Cover, Engine Valve Cover, Intec Manifold, Exhaust Manifold And DIS Brackets).Tool used : HYPERMESH, MSC-NASTRAN template.Input data :

• CAD geometry of engine block, head, bedplate, oil pan, front chain cover, engine valve cover, Intec manifold, exhaust manifold and DIS brackets.

• Quality sheet related to Finite element modeling. Team size : 4

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Requirement:-• Finite Element modeling of Engine Block, Head, Bedplate, Oil Pan, Front Chain

Cover, Engine Valve Cover, Intec Manifold, Exhaust Manifold And DIS Brackets CAD geometry.

• The delivered model should be 1st order hexahedral element with quality mentioned in the quality sheet.

Job done as a team member:-• Imported all the components assigned to me as team member were Bedplate, Oil

Pan, Front Chain Cover, DIS brackets and mid slice Finite element model of Engine Block and Head.

• Segregation of individual components done to make it simpler for Finite element modeling.

• Big models like Bed plate, engine block and head were divided in to number of slices.

• Modeled the components like Oil Pan and Front Chain Cover independently with 1st

order hexahedral element and DIS Brackets with 2nd order tetrahedral element.• Bed plate, engine block and head were modeled by the group.

Project assigned:-

Finite Element Modeling Of full Chassis CAD Assemble.

Tool used : HYPERMESH, MSC-NASTRAN template.Input data :

• CAD geometry of chassis assembles.• Quality sheet related to Finite element modeling.

Team size : 3Requirement:-

• Finite element modeling of individual component in CAD chassis assemble with maintaining node and element matching at the region of contact or welding.

• The delivered model should be meshed at the mid with shell elements.

Job done as a team member:-• Delivered the finite element model of front chassis structure assemble with bumper

assemble with meeting all requirements.

Projects Assigned In Quantech Global Services Ltd, Hyderabad Project assigned related to engine and engine components:-

Finite Element Modeling And Updation Of CAD Geometry Of Engine Block And Head.Type of Block and head:-

• Inline type:- 3, 4 and 6 cylinder engine • V-type:- 6 and 8 cylinder engine.

Types of finite element modeling requested : • 2nd order tetrahedral (NVH, Global and Sub Model)

Role assigned : Team Member & Project Leader (PL)Tool used : HYPERMESH, MSC-NASTRAN template.Job done as team member:-

• Took the input from the PL related to project and the file location.• As per the requirement try to deliver the assigned job on time with satisfying all the

quality requirements given by the client by following the methods approved by the client for modeling.

• Clarified doubts/query in the team meeting related to the assigned job from PL or

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PL reviewer.Job done as project leader (PL):

• Initiated the project with importing the model/assembly from the location given by the team leader in his project initiation mail.

• Segregated the CAD model for proper distribution of job with team member and to identify the areas of interest.

• Estimation of assigned job by the help of project reviewer. • For the ISO quality approval and for internal use Initial project tracking sheet (IPTS)

at the time of start of the project and final project tracking sheet (FPTS) at the end of the project was prepared.

• Regular verification of the status of the project and the clarification of doubt raised by the team member was done.

• Took back up of the project files for future reference after completion of project.My input irrespective of the project requirement:-

• Helped PL in end stage of the project to reduce the project time.• Gave fundamental in puts to the trainees related to projects to prepare them

mentally for project or to handle projects.

Project assigned:- Finite Element Modeling Of HVAC Assemble.

Tool used : HYPERMESH, MSC-NASTRAN template.Input data :

• CAD geometry of HVAC assemble.• Quality sheet related to Finite element modeling.

Team size : 2Requirement:-

• Finite element modeling of plastic CAD components in the assemble.• The delivered model should be meshed with shell elements at the mid plane with

quality mentioned in the quality sheet. Job done as a team member:-

• Modeled the HVAC plastic component like tray, Fusion model using shell elements.• Element matching was maintained between the housings at the assemble region or

contact region.• At the areas of interest mesh refinement was done.

Pilot Projects Done In Pentasoft, BangalorePilot project:

CAD Modeling And Finite Element Modeling Of The Flight Worthy Engine’s Single stage Blade and mounting Disc Assemble.Tool used : CATIA V4, MSC. PATRAN, MSC-NASTRAN, ANSYS V5.4 template Requirement :

• To develop optimal method to analyze 3D model of flight worthy Engine’s single stage blade and mounting disc assemble.

Job done individually:• 3D-CAD modeling work of flight worthy engine’s single stage blade and mounting

disc where it was mounted was done by CATIA V4 Tool.• Finite element model was done by MSC-PATRAN Tool. The element type was

hexahedral.• Simple analysis done by application of resulting pressure load at the face of the

blade and constraining at the rotating face of the disc.

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• Verification of stress distribution in the model done by the applied environmental condition imposed.

Pilot project: CAD modeling And Finite Element Modeling Of Arm Of A Heavy Duty Crane. Tool used : CATIA V4, MSC. PATRAN, MSC-NASTRAN template Requirement :

• To develop optimal method to analyze 3D model of arm of a heavy duty crane.Job done individually:

• 3D-CAD modeling work of arm of a heavy duty crane was done by CATIA V4 Tool.• Finite element model was done by MSC-PATRAN Tool. The element type was

hexahedral.• Simple analysis done by application of bearing load at the cylindrical face of the

arm where the hook to be joined by the help of hinged pin and Appling constrain at the mounting region.

• Verification of stress distribution in the model done by the applied environmental condition imposed.

Personal Particulars:Temporary address:SNS PARADISE, #30/5, 1st Floor, 19th A Cross, Vemana main road, Kagadaspura, C.V. Raman Nagar, Bangalore-560093.Permanent Address: S/O:- Pratap Chandra Ray, A.T:-Town Hall Road, P.O:- Telenga Bazaar, Cuttack, Orissa-753009. Passport No: E3724848Date of Birth: 07/05/1977Sex: MaleMarital Status: SingleNationality: IndianHobby: Listening Music

Declaration:- I here by 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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