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Portfolio of Dave Bhaumik Kishorkumar

1. Subsea pipeline strain analysis for North and South Line

Subsea pipeline was modeled and analyzed for strain.

Roles, Responsibilities and deliverables:

From the Longitude and Latitude data available, North and South line were modeled using

ANSYS APDL.

Pipe supports were applied in terms of Boundary conditions at the supporting nodes.

Prescribed gravity loading was applied to study the strain due to shock loading.

Schematic Representation : (If possible to show)

2. Seismic Analysis of a rack system for glass manufacturer.

Seismic Analysis was performed for glass storage rack using ANSYS.

Roles, Responsibilities and deliverables:

Created 3D model of the rack system in ANSYS Design Modeler

.Derived Boundary conditions by site audit and applied loading conditions.

Schematic Representation : (If possible to show)

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3. Design and Development of Kawana Suspensions

Kawana Dual Stage Actuator Suspensions were to be Designed for Customer Toshiba

Roles, Responsibilities and deliverables:

Designing of Suspensions including component Designs (Mount Plate, Flexure, Load Beam,

Piezoelectric PZTs etc.)

Simulation of the Designs in ANSYS using Finite Element Analysis and sharing the results with the

customer mainly for Frequency Response results.

Modifications of the Designs subjected to the Feedback received on the specifications Target

from the Customers.

Designing with Frequency Response Function Optimization.

Simulation for Sensitivity studies subjected to various manufacturing variations.

Co-ordination with Tool Design and manufacturing for the development of assemblies.

Testing and Validation of the Results. i.e. Modeled using Finite Element Analysis versus Actually

measured.

Schematic Representation : (If possible to show)

Contribution

Driver of the weekly meetings with customer in discussing the product performance parameters

estimated using Finite Element Analysis results.

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Lead Member in conducting and developing the simulations for various Tests performed in

Laboratory.

Driving member for Design for Manufacturing activities for different Design Options. These

activities were performed normally with Tooling Design Department.

After prototype development, was actively involved in getting the Test results out quickly for

static and life cycle Tests.

Results

Qualified Magnecomp Precision Technology as a vendor of Toshiba.

4. Thermal Simulation of a Curing Tool

Thermal Simulation for Curing Tool

Roles, Responsibilities and deliverables:

Performing a Simulation of Thermal Distribution for a Curing Tool

Contribution

Helped converting the 3D problem into a 2D Axis symmetric Analysis problem and reduced the

computational efforts by substantial amount.

Results: Thermal Distribution for Curing Tool

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5. Glue Optimization for Honeycomb Structure

Glue volume Optimization using Finite Element Analysis

Roles, Responsibilities and deliverables:

Created a Finite Element Model for the Honeycomb structure.

Applied various glue thicknesses for upper and lower plate gluing in Finite Element Model and

simulated by performing a Design of Experiments.

Contribution

Optimized for Glue Volume to be used to connect the Top Plate with honeycomb structure.

Results:

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6. Project name: Pressure drop reduction across the duct with help of CFD

CFD Simulation of Existing Design of Duct and new Design.

Pressure Drop calculated for three Designs.

Roles, Responsibilities and deliverables:

Performing a CFD Simulation of Duct for a Power Plant

Contribution

Went to client site to understand the Project Deliverables

Modeled the Duct from 2D input drawings into FLUENT and then simulated for Pressure Drop.

Calculated Pressure drop for 3 different Designs and suggested the best suitable Design

Validated the results by actual measurements at client site

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Results:

7. Thermal Simulation of Heater Plate

Thermal Simulation of two different designs.

Roles, Responsibilities and deliverables:

Performing a Thermal Simulation for Heater Plate Design

Optimize the Design to get more even Temperature Distribution across the heater plate.

Contribution

Co-ordinate with client throughout the project for the simulation

Worked on Steady State Thermal Simulation for the Heater Plate

Optimized the heater routing so that the temperature distribution across the heater plate is

even.

Results:

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8. Shock Analysis of Detector System

Shock Analysis which was a part of Seismic Qualification for the Detector System for a Nuclear

Power Plant.

Roles, Responsibilities and deliverables:

Identifying equivalent G loading for the equivalent Seismic Event from the Spectrum.

Simulating for various X, Y and Z directions G loading and calculation or Margin of Safety for

different component of the system.

Contribution

Created the FE model of the Detector System from 2D autocad drawings.

Identified G loading required for the equivalent shock event.

Simulated and Calculated Margin of Safety.

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Results:

9. Flamingo Gimbal Mode Identification

Simulation for the Gimbal Mode for Flamingo Design.

Roles, Responsibilities and deliverables:

Identifying the Gimbal Mode by Finite Element Modeling

Getting the product benchmarked with the Design of Competitor by Wyko scanning results.

Contribution

Modeled several variations due to manufacturing in ANSYS and compared those with actual

measured parts.

Compared the parts with Competitors' design by Wyko Scanning measurements.

Concluded on the exact reason behind unwanted Gimbal Mode for the Product and

recommended solution.

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Results:

Recommendation to avoid a particular manufacturing variation and hence achieved Customer

Satisfaction.

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10. Sensitivity Study for Frequency Response

Sensitivity Study for variations affecting Frequency Response

Roles, Responsibilities and deliverables:

Identifying the manufacturing Variations.

Selecting the Manufacturing Variations that may have impact on Frequency Response for Hard

Disc Drive Suspensions.

Simulating all variations selected and derive conclusion on the sensitivity of each variable.

Contribution

Identified and selected manufacturing variations and then simulated using Finite Element

Analysis for Frequency Response.

Concluded the most sensitive parameters that impact the Frequency Response which is

performance parameters for Hard Disc Drive Suspensions.

Results:

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11. Piezoelectric materials' stress during Handling in Tray

Simulation for handling of parts with piezoelectric element in trays during shipment.

Roles, Responsibilities and deliverables:

Setting up the simulation and Deciding the Boundary Conditions from the real arrangement of

the parts

Finite Element Analysis of the parts subjected to Shock Loading.

Contribution

Identified Boundary Conditions for the simulation depending upon the actual position of the

components and simulated the same condition for a shock event.

Results:

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12. Investigation of Piezoelectric material crack during Curing in Oven

Investigation of the cracks in piezoelectric materials due to types of glue spread and curing due

to heating in Oven.

Roles, Responsibilities and deliverables:

Studied various cases of variation in glue dots for mounting the piezoelectric element.

Studied the curing process of the glue.

Modeled the physics in Finite Element Analysis software using different conditions of glue dots.

Results:

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13. Stress Analysis of Offshore structure

Assessment of an offshore structure(dolphin tower system) subjected to wind, wave and

hydrostatic loadings

Roles, Responsibilities and deliverables:

Calculating the wind and wave forces for different load cases using the relevant codes

Finite Element Analysis of the tower system

Contribution

Set up a method to analyze the offshore structure by making use of Manual calculations based

upon relevant codes and Finite Element Analysis methods.

Results: