Expert Details

Expert in Gears and bearings

Expert ID: 733805 Washington, USA

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(Overview of Past Projects)
Design:
Design of a series of different model gearboxes that consisted of a combination parallel shaft and planetary gearbox with integral oil cooled clutch used on large coal conveyor drives. Largest gearbox had a rating of 1,500 HP and 2 million inch-pounds of output torque. Design of a 30 horsepower double helical input, twin output shaft gearbox used to drive a plastic extruder. Provided all detail and assembly drawings.Design of a custom 2,000 horsepower right angle gearbox for a steam dryer.

Testing:
Developed the test plan and supervised the full load back to back testing of several sizes of
reducers up to 1500 horsepower and 2 million inch-pounds of output torque. Supervised the static full torque test of a large reducer to determine the pinion and gear deflection so the proper lead corrections could be made. Designed the test equipment and supervised a torsion test to yield of a large diameter planetary sun opinion.

Failure Analysis:
Investigate failure of cooling fan drives and provide technical assistance in pursuit of
warranty claim. Perform due diligence analysis, design reviews, gearbox inspections and investigate gear and
bearing failures of wind turbine gearboxes from 600KW to 3MW. Investigate the failure of a 16-foot diameter gear driving the diffuser tower in a sugar factory and supervise a temporary repair. Develop drawings and specifications for a new gear, help in the selection of a vendor, and supervise the installation of the new gear.

PARTIAL CLIENT LIST:
ALBERTA-PACIFIC FOREST INDUSTRIES INC., Boyle, AB
AMERICAN CRYSTAL SUGAR COMPANY, Moorhead MN
ARMY CORPS OF ENGINEERS, Seattle, WA
ATLANTIC POWER CORPORATION, BOSTON, MA
BAY AREA RAPID TRANSIT DISTRICT, Hayward, CA
BOEING COMPANY, Everett, WA
BRAD FOOTE GEAR WORKS, INC., Cicero, IL
CARTIER WIND ENERGY, INC., Longueuil, Quebec
CHERRINGTON CORPORATION, Sacramento, CA
CLIPPER WINDPOWER, Carpinteria, CA
DNV - GL, Seattle, WA
EDERER INC., Seattle, WA
EXLAR CORPORATION, Chanhassen, MN
EXPONENT INC., Menlo Park, CA
FPL ENERGY, Livermore, CA
GEA POWER COOLING SYSTEMS INC., San Diego, CA
GEORGIA-PACIFIC, Bellingham, WA
GRANT COUNTY PUD, Ephrata, WA
GTE GOVERNMENT SYSTEMS, Mountain View, CA
ISE RESEARCH LTD, Port Coquitlam, BC
JOHNSON CONTROLS, Silverdale, WA
KOCH FERTILIZER DODGE CITY, LLC, Dodge City, KS
LEHIGH CEMENT, Mason City, IA
MACMILLAN BLOEDEL LTD., Port Alberni, BC
MERIT GEAR COPRPORATION, Antigo, WI
METSO MINERALS – BMH, Pittsburgh, PA
MIT LINCOLN LABS, Boston MA
NEG MICON USA, INC., Decatur, IL
NORTHWEST LABORATORIES OF SEATTLE, INC., Seattle, WA
PORT OF SEATTLE, Seattle, WA
PUGET SOUND ENERGY, INC., Bellevue, WA
ROCKWELL AUTOMATION - DODGE CST BUSINESS, Seattle, WA
SASKPOWER INTERNATIONAL INC., Regina, Saskatchewan
SIDNEY SUGAR, Sidney MT
SUZLON WIND ENERGY CORPORATION, Chicago, IL
TERRA-GEN POWER LLC, New York, N.Y.
TECK COMINCO METALS LTD., Trail, BC
TETRA TECH, INC, BELLEVUE, WA
THE AMALGAMATED SUGAR COMPANY, Nampa, ID
THE GEAR WORKS - SEATTLE, INC., Seattle, WA
TRANSCANADA MAINE WIND DEVELOPMENT, INC., Omaha, NE

Expert may consult nationally and internationally, and is also local to the following cities: Seattle, Washington - Tacoma, Washington - Bellevue, Washington - Everett, Washington - Federal Way, Washington - Kent, Washington - Bellingham, Washington - Lakewood, Washington - Renton, Washington

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Education

Year Degree Subject Institution
Year: 1971 Degree: Bs Subject: Mechanical Engineering Institution: University of Washington

Work History

Years Employer Title Department Responsibilities
Years: 1999 to 2018 Employer: (Undisclosed) Title: (Undisclosed) Department: (Undisclosed) Responsibilities: Active in the wind industry analyzing gear and bearing failures, performing end of warranty gearbox inspections, quality audits, due diligence reviews of wind turbine gearboxes and design modifications for existing wind turbine gearboxes.
Years: 1975 to 1989 Employer: The Gear Works Title: (Undisclosed) Department: (Undisclosed) Responsibilities: Worked in Seattle, Washington, the last 8 years. While at The Gear Works, he designed and supervised the testing, of a number of custom gear reducers. Typical projects involved taking initial customer
concepts and developing detail specifications and then sizing all components and supervising the
development of manufacturing drawings and component part specifications. This was followed by
supervising the assembly and testing of the final product and the writing of maintenance manuals.
He was also involved in failure analysis and design of modifications to other manufacturer’s
equipment sent to The Gear Works for repair. These projects provided valuable experience in the
areas of metallurgy and heat treatment, gear design, quality control, bearing selection, seal design,
lubrication, noise, vibration and testing.

Career Accomplishments

Associations / Societies
Expert is active in the American Gear Manufacturers Association (AGMA) and is currently a member of the Helical Gear Rating and Wind Turbine Gear committees. He was a member of the
U.S. delegation working on recently released “Design Requirements for Wind Turbine Gearboxes”. IN ADDITION TO AGMA, he is a member of the American Society of Mechanical Engineers and the Society of Tribologists and Lubrication Engineers.
Publications and Patents Summary
He was a co-author of the AGMA Technical Paper 90 FTM 5
A co-presenter of the AGMA Gear Failure Analysis Seminar.

Fields of Expertise

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