Ashwann Ajjarapu
CANTON,MI
Summary
❖ 15+ Years of experience in CAE, worked in automotive industry OEM's exclusively in Body & Structures Finite Element Analysis and NVH (Noise and Vibrations). With major Auto industries and Supplier's Nexteer Automotive, FORD, STELLANTIS and HYUNDAI MOTORS.
❖ Dedicated professional with extensive knowledge of mechanical technologies, tools and practices. Designs and develops equipment to improve prototypes and products. Experienced in leading projects from initial conception to completion within customer deadlines.
❖ Experience and Expertise in addressing vehicle level shake and noise issues at low and mid-frequency. Provide design directions on suspension tuning, Steering TMD’s, EPAS tuning, Vehicle Dynamics ride and handling performance characteristics.
❖ Support and coordinate root-cause analysis with internal functions and external suppliers to ensure delivered system achieves feature requirements for program signoffs. Work with the larger team to fix issues at production. Lead/Support prototype vehicle issue resolution for design development and validation. Lead/Support development of test methods to evaluate true positive, false positive CAE red flags and correlate to real-world performance.
Overview
17
17
years of professional experience
1
1
Certification
Work History
Sr Validation NVH Engineer
Nexteer Automotive
01.2023 - Current
- Evaluate Steering Column on bed Test Vs CAE
- Work closely with design release engineers to develop solutions to design problems
- Power and Manual column pre stress model analysis done and deliver Nastran FE model to costumer , with frequencies predicting closer to Test.
- Develop ball screw model to determine force components for the Noise prediction model.
- Streamlined the development process by creating standardized procedures for NVH testing, data acquisition, and reporting.
- Collaborated with Customer to ensure component designs met stringent NVH specifications for seamless integration into final products.
- Enhanced test accuracy and repeatability by maintaining the proper calibration of all NVH testing equipment and instrumentation.
Vehicle Dynamics & NVH CAE Engineer
Ford Motors
06.2017 - 12.2022
- Evaluate Full vehicle performance for Vehicle dynamics Secondary Ride and Handling
- Lead/Support CAE to Test correlations using On Road Testing
- Lead/Support Autonomous Vehicle Engineering for meeting standers on camera sensors
- MATLAB conversion and coding in supporting Test data acquisition
- Lead/Support prototype vehicle issue resolution from CAE tools for feature development and validation
- Bench marking and data acquisition by instrumentation / testing vehicles for NVH
- Tire Modes correlations, fit to test and evaluate vehicle touch points and cabin quietness
- Suspension Tuning and TMD assessments to improve SECONDERY Ride
- Engine Mounts optimization to meet the Seat shake targets
- Steering kinematics studies are performed to predict Nibble Correlations to Test and Improve handling RIDE
- Test channel instrumentation for High channel Ride and Road Noise
- Suspension geometry is studies to improve Impact Harshness and Ride performances of the vehicle on road
- Refine existing CAE tools in NVH, for further develop process
- Support the development of MATLAB scripts/tools/GUIs used in post processing and analyzing feature performance.
Project Chief Functional Science NVH
Fiat Chrysler Automotive (FCA)
10.2011 - 07.2016
- Led and executed Full Vehicle Integration and Validation in NVH attribute projects
- Worked as Technical Liaison Engineer for NVH projects between FCA, India and FCA, USA
- Lead engineer for vehicle Trimmed body and BIW level from Program initiation to Start of production
- Evaluated and improved Dynamic stiffness (A/F) and Acoustic sensitivity (P/F) of BIW Trim
- Productivity improvement by developing Automation scripts and implemented as Standard operating process
- Involved in BIW weight optimization and engine mount stiffness improvement for Minivan- (Mass reduction: 15%)
- Frame design improvement on body mount stiffness to solve road shake issue in Pickup truck
- Resolution to road boom issue in JEEP vehicle by tune mass damper at lift gate (~5dBA noise reduction).
NVH CAE Engineer
Hyundai Motors
12.2007 - 07.2011
- FE modelling manage Engineering Team for First time right Quality and On-time delivery of CAE Projects
- SPOC for S.Korea and Team India.
Education
M.Sc. in Automotive Engineering -
Coventry University
01.2007
Bachelor of Technology in Mechanical Engineering -
JNTU
01.2005
Skills
- Technical report writing
- Finite element analysis
- Acoustic Analysis
- Vibration Testing
- Transfer Path Analysis
- Frequency Response Functions
- Modal Analysis
- Project Management
- Root Cause Analysis
Accomplishments
- Nexteer management recognition award support on Expo day with demonstration and material help to go thru the work done in the AVC.
- Ford Recognition Award for Leading CAE support on C-2 Platform & Knowledge Sharing
- Ford Recognition Award for Road Noise Issue resolution and helping Team with KT
- Ford Recognition Award for Leading V-dyn and Road Noise CAE
- Best Employee Award for supporting Chrysler Minivan program 2015
- Recognized as Best Team Player in NVH Technical exhibition FCA , India 2014
- State Level 3rd position winner in Engineering Project National Technical Exhibition India 2005 Project title: SPYRIDER 2 (Working level ATN Combat Battle Vehicle)
Technicalskills
NASTRAN, ABAQUS, MATLAB, SIMULINK, OPTISTRUCT, ANSA, HYPERWORKS, ANSYS, META POST, ADAMS, CATIA V5, UNIGRAPHICS NX, AUTO CAD, C, C++, Python
Certification
- MATLAB SIMULINK Certification UDEMY Academy
- Advanced NASTRAN NVH Training at Ford Technical Training centre Dearborn USA
- NVH Console and Optimization Training in BETA Conference, Farmington USA
Languages
English
Full Professional
German
Elementary
Hindi
Full Professional
Telugu
Native or Bilingual
Timeline
Sr Validation NVH Engineer
Nexteer Automotive
01.2023 - Current
Vehicle Dynamics & NVH CAE Engineer
Ford Motors
06.2017 - 12.2022
Project Chief Functional Science NVH
Fiat Chrysler Automotive (FCA)
10.2011 - 07.2016
NVH CAE Engineer
Hyundai Motors
12.2007 - 07.2011
M.Sc. in Automotive Engineering -
Coventry University
Bachelor of Technology in Mechanical Engineering -
JNTU