NVH CAE Engineer

Akhandayyaswamy MH

Qualification: B.E (Mechanical)

Current Location: Pune

Email Id: *********.****@*****.***

Phone No: +91-976*******

Domain Expertise An accomplished CAE Analyst having 4 years of experience

in NVH domain for automotive industry.

Have good experience in the area of Small passenger

vehicles, Sports Utility vehicles and Commercial

vehicles.

Worked for automotive clients like Jaguar Land Rover and

Tata Motors with consistently good quality feedback.

Experienced in executing multiple projects and project

planning.

Automotive (CAE) Modal build of FULL TRIM BODY.

Modal analysis, Global Stiffness analysis Kb & Kt in BIW

level.

Equivalent Static Stiffness, Dynamic Stiffness, Modal set

up and analysis for NTF & VTF analysis in Trim body

level.

Modal build activities for commercial vehicles.

Modal & FRF analysis for commercial vehicles.

IT/Software CAE - Hypermesh, Hyperview, Hyper Graph, Ansa, MSC

Nastran.

Current Role SENIOR CAE ENGINEER - Body-NVH

Employment Summary:

Dates Organization Role

June 2011 - Till Date Tata Technologies Senior CAE Engineer

Ltd.

August 2010 - May 2011 Ram's Professional CAE Trainee/Engineer

Training Centre

Bangalore.

Experience Summary:

. Experience in Full Vehicle Development Programme.

. FE Modeling of Full Vehicle Body for Crash and NVH Analysis.

. FE Modeling of BIW for Safety Crash Simulations and NVH Analysis.

. Experience in Modal Building-Subsystems, Trim body.

. Experience in Assembly/Connections/Full Vehicle Integration-NVH-

NASTRAN.

. Experience in Normal Mode Analysis for BIW and Subsystems.

. Experience in Normal Mode Analysis for TSM/Full Vehicle Mode

Description.

. Experience in FRF Analysis for BIW and Trim Body Level for Passenger

Vehicles.

. Modal and FRF Analysis for Commercial Vehicles.

. Experience in setting up Decks for NTF and VTF - Structure Borne Noise

simulation Runs.

. Product Development knowledge of developing the product from Design

phase.

. Reports Preparation and submitting the reports to the design team for

Design Level Modifications.

Professional Responsibilities:

Project 1: Model Building

Client : Jaguar Land Rover

Project Duration:

Description: The purpose of the project is to build a FE model in Nastran

include format.

Responsibilities:

. 2D Shell meshing - Sheet metal components: BIW structural components-

Closures-Doors, Hood, Tailgate/Liftgate, Front and Rear armature.

. 2D Shell mid plane meshing - Plastic Trim components : IP parts, HVAC,

Cowl Grill, A-pillar,

B-pillar, C-pillar trims.

. 3D Meshing - Tetra components - Brake assembly, Engine mounts,

Steering rack, Steering assembly.

. 3D Meshing - Acoustic cavity modeling - Bumper foams, seating system,

IP console, Passenger cabin.

Project 2: NVH - Model Building

Client : Jaguar Land Rover

Project Duration:

Description: The purpose of the project is to build a Trim body model using

Nastran Profile.

Responsibilities:

. Identify the sub-systems to be represented in the FE model.

. Prepare a table of how each sub-system is represented in FE

[Shell/Solid/Spring/CONM2 etc]

. Sheet Metal (BIW/Closures/Chassis/Gas Tank etc

. Mid-planed plastics (Door Trims/Interiors/Exteriors etc

. Solids (Bumper Foams / Steering wheel/ Eng-Trans mounts)

. Lumped Mass (Window motors/ Mirror/ Head Lamp/ Speakers etc

. NSM (Paint / Carpet /NVH pad etc

. Connectors (Welds, Seams, Adhesives, Bolts, Clips)

. Springs (Seals/Weather strips)

. Hemming preparation for closures.

. Mass data collection.

. Generating FEM models of vehicle subsystems.

. Numbering [PID/Nodes/Elements/Material/Systems]

. Mass and CG matching.

. Validation of individual subassemblies and complete assembly of a

vehicle (Modal Analysis).

Project 3: Normal Modal Analysis for Subsystems

Clients : Jaguar Land Rover & TATA Motors

Project Duration:

Description: The project work involves Finite Element Model (FEM) building

and Normal modal analysis for subsystems.

Responsibilities:

. FE Modeling and Integration of different subsystems for NVH -

Driver/Passenger seat - Body closures - IP Beam - Front and Rear

cradle - Front and Rear bumper - Exhaust - Battery - Engine mounts -

Spare wheel - Fuel tank - Steering column

. Connection and Loads, Adhesive welds, Spot welds, RBE2 & RBE3

connections, CBUSH, CELAS, CDAMP, MPC, SPC constraints, TABLED input,

EIGRL.

. Deck Preparation in Nastran for Normal modal analysis.

. Finding Natural frequency and mode shapes for different modes,

Comparison and meeting the given target of the reference.

Project 4: NVH - Trim Body Analysis

Clients : Jaguar Land Rover & TATA Motors

Project Duration:

Description: The project work involves Finite Element Model (FEM) building

and Normal modal analysis for Trim Body Modal.

Responsibilities:

. Modal analysis of complete Trim body using Nastran to establish the

natural frequency and the mode shapes.

. Define analysis parameters such as PARAM cards, Damping, Method,

Frequency range.

. Frequency Response analysis to positively identify the Global modes

and identify the resonances.

. Typical Modes of interest in a Trim Body are:

. Overall Body Modes (Global Torsion, Bending lateral and vertical

modes).

. Front End Modes (Bending, Torsion & lateral)

. Rear End Modes (Bending and Torsion)

. Steering Column (Vertical and Lateral)

. Subsystems modes.

Project 5: NVH - Dynamic Stiffness Study

Clients : Jaguar Land Rover & TATA Motors

Project Duration:

Description: Project involves Computer Aided Engineering (CAE) based

simulation of various automotive components. The project work involves

Finite Element Model (FEM) building, analysis simulation and counter

measures. The CAE simulation will be done for Noise & Vibration (NVH).

Responsibilities:

. Preparing the excitation setup in the direction of vertical axis of

the vehicle at the engine mounting locations and various suspension

mounting locations of TBIW.

. Performing Frequency response analysis of the TBIW.

. Calculated the dynamic stiffness of the TBIW mounting locations.

. If the dynamic stiffness targets are not meet then go for improvement

study.

Dynamic stiffness improvement study is carried by providing

counter measures like changing

the shapes of the weaker component, providing brackets and

Stiffeners.

Project 6: NVH - Hood and Door Stiffness Analysis

Client : TATA Motors

Project Duration:

Description: The project work involves Finite Element Model (FEM) building,

analysis simulation and counter measures. The CAE simulation will be done

for Noise & Vibration (NVH), Crash, Strength and Durability requirement as

per TATA motors standards.

Responsibilities:

. Checking the initial quality checks of the model provided.

. Preparing the initial setup of tensional, lateral and bending

Stiffness for Hood and Door.

. Measuring the displacement. If the displacement is within the target

then it is fine. If not then performing static stiffness improvement

studies. Static stiffness improvement study is carried by providing

counter measures like changing the shapes of the weaker component,

providing brackets and stiffeners.

Project 7: Structure Borne Noise Analysis - NTF - VTF

Clients : Jaguar Land Rover & TATA Motors

Project Duration:

Description: The project work involves Finite Element Model (FEM) building,

Model set up for NTF and VTF analysis for Trim Body Modal.

Responsibilities:

. FRF analysis and computation of global vertical bending, global

horizontal bending and global torsion.

. Cavity modeling for NTF analysis.

. Boom and Road noise, Vehicle vibration.

. Modal participation for optimizing structure borne noise.

. dB calculation for Driver and passenger ear locations.

. Drive point mobility (VTF - Velocity/Acceleration Calculation).

Tools used:

. Pre processing : Hypermesh, ANSA

. Solver : MSC Nastran.

. Post Processing : Hyperworks (Hyperview and Hypergraph)

Personal Details:

Name : Akhandayyaswamy MH

Date of Birth : June12, 1987

Sex : Male

Marital Status : Married

Language Proficiency : English, Hindi, & Kannada

Address : Flat No: 136/06/20 Bharatmatha housing

board society,

Walekhar wadi, Gurudwar chowk, Akurdi,

Pune - 411 027, Maharashtra

India

Passport Number : H6253020

Declaration: -

I hereby declare that above furnished information is true to the best of my

knowledge.

Date:

Place: Pune

Akhandayyaswamy MH

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