Engineer Manager

Resume

Tel : 408-***-**** (M) Saravanan Marimuthu

Sr. Structural Engineer

Email: abnkwq@r.postjobfree.com

Aviation Engineering / Product Engineering Team

Cascade engineering Sevices Inc

Professional Profile:

Goal driven professional with 9 Years of experience in Finite Element Modeling and analysis, CFD analysis, retro fit

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Design, 3D CAD modeling. Strong experience in Product design, Research and Development, Team management

capabilities.

Structural substantiation of A320 Model aircraft: FAA STC (Supplemental Type Certification) for major changes in

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the interiors like Cabin equipment, LRU installation and brackets installation for electronics equipments. Working

with Structural DER / Avionics DER and Flight Test DER for FAA form 8110-3 execution for structural approval

based on FAR 25 and FAR27 standards.

Knowledge in RTCA DO-160E Section 4,5, 7 and 8. Familiarity with MIL-HDBK-5

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DADT- Durability and Damage tolerance analysis of doublers and skin panels for 767/737NG’s

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Conceptualize, design, and develop aircraft interiors for VIP customers, and substantiate the structure based on

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FAR25/FAR27 standards. Work with the marketing team to define customer needs in order to meet the customer’s

functional performance requirements, from initial proposal to successful tooling and product qualifications.

Present product concepts to customers early in development cycle, interpret feedback, and incorporate any revised

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requirements into the design. Define Product, Application, and Packaging specifications, Complete Engineering

deliverables per the defined project schedule on all projects

Strong experience in structural linear and non linear analysis in Aerospace, Automotive, semiconductor and medical

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equipment Industries. Strong experience in FEA simulation like seismic analysis as per zone 4 g loads, anchorage

system validation, Creep analysis, Fatigue life calculation, g load analysis, hand calculations, APDL Programming,

transient dynamic analysis, Random vibration analysis, seismic analysis, explicit dynamic analysis, Rotor dynamics

analysis, hyper elastic analysis.

Thermal analysis of chips, PCB, solders pumps, heat sinks, and copper reinforcement.

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Computer Skills

CAD - Packages Known: ANSYS -Workbench, Pro/E 2001/ Wildfire V4.0, knowledge in CATIA v5.0, and Diploma

in AutoCAD R-14

Meshing packages : Hyper mesh V6.0, Knowledge in AI/ICEM 10.0

FEA Packages known : ANSYS V11.0, Work Bench, NASTRAN/PATRAN, ABAQUS V6.7, ANSYS/LS-Dyna,

CFD Package : CFDesign, Knowledge in CFX software

Optimization Tools : Hyper works- Opti-struct, ANSYS/Optimization

Programming Language: C/C++, FORTRAN

Educational Qualification

Masters in Mechanical Engineering, PSG-College of Technology, Coimbatore, INDIA in the year of 2001

Bachelors in Mechanical Engineering, Tamil Nadu College of Engineering, Coimbatore, INDIA in the year of 1999

Professional Experience

Cascade Engineering Services, Redmond, WA, USA Mar 2008 – PRESENT

Sr Structural Engineer, Aviation Engineering (AE) / Product Engineering (PE) division

Responsibilities at AE

Airframe structural analysis on transport category aircraft, including but not limited to aircraft structural modification

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designs, integration of avionics systems, Supplemental Type Certificate (STC) work, certification plan and

substantiation report development, applying FAR25/27 standards, RTCA DO-160E, for 8110-3 structural approvals.

FEA Simulation of Linear and Non-Linear static structural analysis, Thermal analysis, Macro programming (Scripting

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language used for parametric study), Creep analysis, Fatigue life calculation, Random vibration analysis, Seismic

analysis (Dynamics analysis), Rotor Dynamic simulation, etc. using ANSYS V11.0, NASTRAN/PATRAN,

ABAQUS, Hyper mesh and Opti-struct software’s

Perform structural analysis for Boeing 737NG/767/ Euro copter structures includes radar scanning assembly,

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electronics circuit enclosures, brackets, partition wall, mounting brackets, etc as per FAR 25/27 standards.

Responsibilities at PE

IC chips Steady state thermal simulation for 8/16 pin TSSOP Lead frame, fused design / non-fused design.

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Electronics cooling system design and optimization using CFD/FEA approach.

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AES Inc, San Jose, USA May 2007 – Mar 2008

FEA Simulation Manager: CAE/CFD Division

Worked as a Manager and maintained the off-shore Team of 15 members (Analyst) size, located at Chennai and

Bangalore (INDIA) offices, India. Actively working with the following clients as a front end contact and executed

projects both onsite and offsite.

NVIDIA Inc, Santa Clara

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Bump crack Simulation on C51-Chip set: To predict the failure- root cause of Solder Bumps; using FEA

approach in consideration of Creep strain accumulation and thermal gradient effects. To achieve this; Creep

analysis is done for field condition mini cycling; and life is calculated based on the Fatigue life equations

(Darveaux method)

Random Vibration analysis on C73 Chip set: Identify the failure mode vibration & structural rigidity of the

chip set. The different frequencies (from lab testing) are checked through FEA, and avoid the resonance of the

structure; which may initiate the crack.

Package Thermal modeling support: The parametric study of the package assembly with the aid of FEA macro

programming; which can find the dimensional sensitivity of the different components. Also; macro can capture

the temperature distribution of the package.

INTEL Inc, Santa Clara

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Photo masking process simulation: Study the effects of Gasket stiffness & its Thickness on Pellicle Induced

distortions (PID) in Advanced Photo masks By FEM Approach.

Mount force optimization; taking structural stiffness as objective function and pellicle in plane distortion as

constrain.

Frame structure optimization:

Managed project for companies like AKT (Applied Materials Group), MATTSON Technologies, LAM Research,

CAPSTONE TURBINE, and HUSKY INJECTION Molding

ANSYS Inc, Canonsburg, PA, USA NOV 2005 - MAY 2007

Development Support Engineer, Dynamics Team

Developed bench mark models to test Rotor dynamic applications, based on Industry experts feedback/ advice and

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tested the new features like Campbell diagram creation for High-speed rotating components, Synchronous &

Asynchronous, out of balance introduced in the structure, Instability plot, Whirling plot (Forward & Reverse) which

was added in ANSYS V11.0 software

Developed graphical user Interface (GUI) for Rotor dynamics application, REBARS, Component mode synthesis

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techniques for ANSYS V11.0 software

Developed bench mark models to test Reinforcement bars used in Tire, building structures applications, based on

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Industry experts feedback/advice and tested the new features like Rebar’s, axial forces, orientation changing which

was added in ANSYS V11.0 software

White paper preparation, presenting an article in ANSYS magazine, presenting advanced dynamics features in

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International ANSYS user conference.

SONA KOYO Steering systems Pvt Ltd JUNE 2004 – NOV 2005

Manager CAE

Developed FEA standards for the entire Steering system assembly as per FMVSS motor vehicle standards

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The prototype testing (Experimental set up) procedure was simulated virtually by using FEA applications, compare

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the results with experimental data, and FEA procedure was standardized.

The FEA standards were documented and testing method were approved. We started using FEA instead of Physical

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prototyping testing.

Considerable amount of time and cost saved, the entire Product life cycle was drastically reduced.

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Techno soft Information Technology MAY 2002 – JUNE 20 04

CAE Engineer

Structural analysis using ANSYS 7.1 & 5.4

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Product design and development using Reverse Engineering & Rapid Prototyping – RP (Both metal and plastic RP)

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techniques

Trainings Attended

Introduction to ABAQUS – In ABAQUS West Region office, at Fremont, CA, USA – 6 Days

Non-linear Analysis methods, elastomers & Tire modeling Techniques in ABAQUS – In ABAQUS West Region

office, at Fremont, CA, USA

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