Engineer Mechanical

John Sherrill

**** **** **** **. *******, TX ****1, 512-***-****

Mechanical Engineer – Design and Development

Skills Profile

Ten years of experience in mechanical design and development, including automotive valvetrian, hydraulic

pumps, hydraulic controls, emissions, CVT transmissions, suspension, defense off highway towing systems,

oilfield tools, defense systems, and aircraft galley and interiors.

Mechanical system design and development and testing – clean sheet to production.

Analytical and mathematical problem solving, FMEA, DFMEA, Six Sigma.

Pro-E, Pro-Mechnica, ANSYS, SolidWorks, SolidWorks Simulation, FloWorks, AutoDesk Inventor, AutoCAD,

MathCAD, PDM/PLM, FEA/CFD, Excel, and Word.

Engineering Measurements: strain gauges, load cells, transducers, and data acquisition.

Quality Control and Measurement: Optical comparator, contour tracer, Rockwell hardness tester,

metallographic equipment, micrometers, calipers, bore gages, gage balls, and gage pins

Training Certificates: MathCad Introduction to Basic Techniques, Introduction to Pro/Engineer Wildfire 3.0,

Introduction to Ansys Workbench, Comos FloWorks Software Training

Education

B.S. in Mechanical Engineering Technology, ABET accredited

LeTourneau University, Longview, TX

Graduation: December 2003, with Honors - Cum Laude, 3.55/4.00 GPA

Professional Experience

Mechanical Engineer-Contract, Enflite (Sikorsky), Georgetown, TX 01/2013- Current

Design of aerospace galley and interior components and systems including coffee makers, refrigerators,

microwaves, tables, and lifts.

Participated in Environment Health & Safety activities – HS&E

Project Engineer, Austin Precision Products, Leander, TX 02/2012- 11/2012

Design, development and testing of defense systems, including support of manufacturing development and

implementation.

Design, development and release of systems and system components.

Developed specification system for proprietary manufacturing.

Project Engineer, PACCAR Peterbilt, Denton, TX 09/2011-12/2011

Completed tasks related to the design and development of emissions related components and systems in

efforts to reduce warranty and prevent recalls.

Implemented designs to reduce overall emissions systems costs over the product line.

Focused on the use of DFSS tools to achieve efficient implementation of customer focused solutions.

Directed engineering tasking to offshore resource coordinator for the design of emissions controls wiring.

Product Development Engineer, Fallbrook Technologies, Cedar Park, TX 07/2008-09/2011

Developed new product applications for constantly variable transmission systems including a motorcycle

technology demonstrator, ATV applications, wind power drivetrains, constantly variable accessory drives, and

an infinitely variable transmission application.

Developed of electro-mechanical and electro-hydraulic control systems, pumps and lubrications systems

Contributed to overall technology performance through Identification of a non-linearity of mechanical-system

control interface, and offered linearization parameters to address control system errors. Improved traction

surface topology and transmission lubrication systems that resulted in meeting durability goals.

Activities include project management, system design, development, testing, and product package releases.

John Sherrill Mechanical Engineer 1

Developed products with analysis tools, Pro-E, Ansys Mechanical. Participated in design reviews, FMEA

reviews, checking and release of system designs, and coordination of manufacture of prototypes and system

testing.

Senior Technologist Mechanical, Halliburton ESG, Carrollton, TX 06/2006-06/2008

Designed and developed systems for oil well completions, with a focus on expandable completion systems.

Refinement of axial cased hole anchoring system – Overall system design, with implementation of new

material heat treatments, surface coatings and processes, advanced anchor tooth design,

Development of circulation valve in including flow paths, hydraulic shifting with advance plastically deformed

valve technology, and hydraulic bounce resistance.

Developed mathematical analysis to characterize behavior of variable plastic deformation of expandable open

hole screens.

Developed inflow control devises with an emphasis on CFD.

Developed products using traditional mathematical analysis, SolidWorks, Ansys DesignSpace, COSMOS

Works, and FloWorks for design validation. Participated in design reviews, FMEA reviews, checking and

release of system designs, and coordination of manufacture of prototypes and system testing.

Design Engineer, CMDC, McAlester, OK 01/2006-03/2006

Responsible for system design in compliance with military specifications and federal motor vehicle regulations,

including prototype design, drawings specifications, and material review.

Long travel suspension design.

Design and analysis for military lift and transport.

Modular vehicle design to allow for flexible system usage

Interfaced directly with customers in design reviews and technology demonstrations.

Experience includes review of chassis and suspension design with FEA in accordance with requirements of

military standards.

Design Engineer, Xceldyne Technologies, Thomasville, NC 06/2004-01/2006

Responsible for all aspects of product development including: concept, design, analysis, and testing.

Specialized in precision high-performance valvetrain components for competitors in F1, IRL, NASCAR, and

other racing series. Secondary focus on development of various racing components.

Worked with customer to develop products to specialized customer requirements.

Developed products using SolidWorks, FEA (COSMOS Works Professional), and durability testing.

Responsible for production drawings, GD&T, checking, and approvals. Liaison with manufacturing and quality

control for manufacturability and processes. Responsible for engineering specifications.

Experienced with aerospace grade titanium alloys, aluminum alloys, bronze alloys, and high strength specialty

steels. Materials and surface engineering experience includes heat treatment processes, gas nitriding, ion

nitriding, carburizing, shot peening, thin film coatings, thermal spray coatings, and surface preparation. Testing

experience includes valvetrain spintron testing, and valvetrain component failure evaluation. Also conducted

material review board for non-compliant production.

Designer, LeTourneau Inc., Longview, TX 06/2000-05/2004

Responsibilities include preparation and modification of detail drawings for design and construction of Mobile

Offshore Drilling Units.

Liaison with engineers and other drafters to ensure that the design intent is communicated effectively and

efficiently on all drawings.

Design and production drawings using AutoCAD.

Responsible for creating item numbers, change requests, and bills of materials.

Weight and material usage calculations for parts and structures.

Patents: (Co-Inventor) US8360917 B2

Pat Pending: (Co-Inventor All) US20130102434 A1, EP2419658 A1, WO2011109444 A1 WO2011109444 A1,

US20100267510 A1, US20110218072 A1, WO2010120933 A1

John Sherrill Mechanical Engineer 2

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