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 Expert  715280

Expert in Gear Dynamics, Gear Noise

Available for your Consulting and Expert Witness Needs

Ohio (OH)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert heads a laboratory devoted to gear noise research. This lab is supported by over 25 companies. He is a principal lecturer of a gear noise short course offered annually. This course has been taken by over 600 individuals from over 250 companies. He is the author of the chapter on gear noise in McGraw-Hill's Gear Handbook.



gear noise

Expert teaches specialized courses that encompass many aspects of gear design and gear geometry. This knowledge covers annular, bull, helical, planetary, propulsion, reduction, ring, spur, step-up, and transmission gears. He also has expertise in backlash, rack and pinion, and cycloidal and involute gear teeth. He has access to numerous computer programs for the analysis of gear geometry, load distribution, dynamic analysis, and stress analysis.

gear design


gear drive

Expert has taught courses in signal processing and is familiar with the operation of many spectrum analyzers. (OSU currently has 12 analyzers.) Most applications in his experience relate to rotating machinery.

digital signal processing

Expert has taught numerous university and industry courses in machinery vibration. He specializes in vibration measurements and signal processing.

machine vibration


machine vibration analysis


mechanical system vibration


vibration modeling

Expert has worked with many torsional vibration measurement systems including torsional accelerometers, demodulated gear teeth, and laser measurements. He has done much research into the measurement of gear transmission error.

rotational vibration


torsional vibration

Expert has spent ten years doing belt related research projects in belt materials, vibrations, CVT drives, temperature, and fatigue. He is in contact with the leaders in the industry.

V belt

Expert regularly teaches courses on this topic and applies the methodologies in research projects.

mechanical engineering measurement

Expert has performed research in this area. He has models to predict vibration spectra for gears and bearings.

vibration diagnostics

Expert has spent 30 years as a researcher in this area.

gear system dynamic analysis

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Columbus, Ohio;  Cincinnati, Ohio;  Akron, Ohio;  Dayton, Ohio;  Canton, Ohio;  Lorain, Ohio;  Springfield, Ohio;  Elyria, Ohio;  and Middletown, Ohio.

Often requested
with this expert:

Gear Design & Analysis
High Performance Gear Design
Plastic Molded Gear Design, Inspection, and Manufacturing
Mechanical Design: Automated Machinery, Rotating, Assembly,...

Year   Degree   Subject   Institution  
1969   Ph.D.   Mechanical Engineering   University of Wisconsin - Madison  
1965   M.S.M.E.   Mech. Engr.   University of Wisconsin - Madison  
1964   B.S.M.E.   Mechanical Engineering   University of Wisconsin - Madison  

Work History:
Years   Employer   Title   Responsibilities

1968 to


(Undisclosed University)




Expert teaches on the topics of vibrations, measurements, and controls. He conducts research in gears, V-belts, and noise.

Career Accomplishments:

Expert is a member of ASME, SAE, AHS, and INCE.


He is a Registered P.E. in Ohio.

Professional Appointments

He serves on the Advisory Board for the JSME Journal.


Expert is a Fellow of ASME, is listed in Who's Who in America. He received the ASME Century II medallions.

Publications and Patents Summary

Expert has over 100 publications.

Consulting Services:
Selected Consulting Examples:
  • Expert helped solve an accessory gear noise problem for a major truck manufacturer. He conducted both experiment and analysis.
  • He has performed simulations of gear noise and transmission error for many companies.
  • Expert has given many one-day advice efforts for companies.
Recent Client Requests:
  • Expert for consulting on Gear Dynamics; Gear Noise.
  • Gearing expert for consulting on limited slip rear differential design and durability.
  • Expert for consulting on DC Motors.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Recent Litigation Client Requests:
  • Expert in internal combustion engines for consulting on crankshaft rotary torsional vibration.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Country / Region   Summary
Europe   Expert performed research with several auto and truck companies in Sweden, France and Italy.
Mexico   He taught a course on gear noise to engineers of a major transmission manufacturer.

Additional Skills and Services:

Expert regularly teaches a course on gear noise and an advanced course on the same subject.

Supplier and Vendor Location and Selection

Expert is experienced in locating vendors of: gear measurements, gear testing, spectrum analyzers, and gear transmission error measurements. He has access to the following resources: gear noise literature, a database of more than 1000 articles and papers, and a gear design database.


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