Mechanical Engineer Design

KRISH CHHATBAR

734-***-**** ******@*****.*** www.linkedin.com/in/krishchhatbar/

SUMMARY

• Mechanical Engineer with decisive Mechanical Design, CAD, CAE, and Product Development skills

• 3+ years of Expertise in 3D Part design, Detailed assembly, Surface modeling, and Sheet metal design

• Proficiency in Creo, Solidworks, Catia V5 and AutoCAD for 3D Modeling and preparing/releasing 2D drawings

• Proficient in Linear static & dynamic analysis, fatigue, Modal, Crash and failure analysis

• Experience in FEA analysis of vehicle chassis, seat frame, brake assembly, and Vehicle Bumper

• Adept in performing DFMEA, DVP&R, DMAIC, DFSS, Tolerance stack up, 8-D and Root Cause Analysis

• Experience in working with hydraulic and pneumatic systems for component testing TECHNICAL SKILLS

CAD Tools : Creo, Solidworks, Catia V5, AutoCAD Mechanical Skills : DFMEA, DVP&R, DFM, GD&T Analysis Tools: HyperWorks, Ansys, LMS Test Lab, Minitab Programming Skills: MATLAB Simulink, C/C++ WORK EXPERIENCE

Battery Research Engineer @ University of Michigan, Michigan, USA June 2018 – Present

• Built detailed cooling design of battery pack with Coolant flow loop including micro channels and structural members for cell expansion and contraction using Solidworks part & surface design

• Performed steady-state thermal analysis for different driving cycles, environmental temperatures, coolant flow rate & temperatures to analyze total heat generation, Cell and coolant temperatures using Ansys Fluent. Redesigned dependent variables for increased battery pack cooling by conduction Mechanical Engineer @ DelVal Flow Controls, Maharashtra, India Nov 2016 – April 2017

• Participated in the testing of new product development (NPD), including planning and executing tests, documenting & interpreting test results

• Built detailed assembly in Creo of butterfly valve applying DFM, DFA and released production drawings

• Designed Stainless steel valves using ASME B16.10, B16.34 and applied GD&T Y14.5-2009 standards

• Performed Design and Release activities like preparing Bill of Materials, maintained DVP&R and costing

• Valve Prototype testing for water leaks/air gaps using hydraulic and pneumatic system

• Learned about product lifecycle management tools including Teamcenter for multi-CAD management Design Engineer @ Formula SAE – L.J.I.E.T., Gujarat, India April 2015 – March 2016

• Constructed CAD model of the vehicle frame and sheet metal body panels using AutoCAD & Solidworsks

• Performed vehicle front/rear impact and frame torsional stiffness analysis using Hypermesh – Optistruct

• Analyzed FEA results for Stationary loads, torsional vibrations, centrifugal forces, and bending stresses

• Performed DFMEA and DVP&R to mitigate potential failures and document the testing procedures

• Designed and manufactured Jigs and fixtures for the fabrication of Vehicle spaceframe

• Built CAD Model of new seat design considering SAE Standards and meeting FSAE rules ACADEMIC PROJECTS

Fatigue Analysis of Diesel Engine Crankshaft Dec 2018 – Feb 2019

• Performed Dynamic load and stress analysis to predict crankshaft’s fatigue life using Creo and Hypermesh

• Used MATLAB to calculate dynamic force and used quadratic tetrahedral mesh for finite element model

• Calculated fatigue life to be between 105- 2 105 cycles with critical location of failure at the fillet areas Design and Optimization of Engine Connecting Rod Dec 2018 – Feb 2019

• Optimized existing Diesel design of connecting rod by considering the same boundary and loading conditions under static and fatigue loading using software like Solidworks and Hypermesh

• Reduced the weight of the connecting rod by 0.005 kg which reduces inertia forces and cost of material

• Predicted life under fully reversed fatigue loading conditions to a maximum limit of 109 cycles Crash Analysis on Automotive Bumper Sept 2018 – Dec 2019

• Built models of bumper systems starting from preliminary designs to intricate ones using Catia V5

• Completed pre-processing in LS-Dyna by defining non-linear Steel and composite material model, Automatic surface to surface & single surface contacts, boundary conditions and nodal rigid bodies

• Obtained the energy, acceleration, rigid-wall force and displacement plots for bumper using HyperGraph Analysis of a Steel Brake Pedal Jan 2018 – April 2018

• Performed Static structural analysis to calculate maximum deflection under uniform pressure using HyperMesh-Optistruct. Improved its strength by 15% and reduced weight by topology optimization Modal Analysis of an Automotive Seat Frame Sept 2017 – April 2018

• Designed and Performed modal analysis to obtain different natural/resonant frequencies of various seat components like Headrest, headrest guide, seat frame mounting/bolts, and recline mechanism

• Redesigned seat frame to avoid the resonant frequencies that may interfere with human body parts NVH Lab Testing Sept 2017 – April 2018

• Carried out order tracking of a 6-cylinder Engine using LMS SCADAS III Digital Analyzer and LMS Test Lab

• Performed Frequency Response Function (FRF) measurement, modal analysis of a component and carried out calibration of the accelerometer. Also, performed sound intensity measurement of a rotary machine using GRAS sound intensity probe and B&K Calibrator to analyze RPM of the system EDUCATION

University of Michigan

Master of Science in Mechanical Engineering G.P.A.: 3.7/4 Dearborn, MI, USA

Sept 2017 - April 2019

Courses: Finite Element Methods, Material consideration in manufacturing, Vehicle thermal management, IC Engines, Powertrain NVH, Total Quality Management, Advanced Engineering Analysis L.J. Institute of Engineering and Technology Gujarat, India Bachelor of Science in Mechanical Engineering G.P.A.: 9.08/10 July 2013 – May 2017

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