"Dr. Alexander L. Kapelevich is a gear design consultant at AKGears, LLC. He holds a Master’s Degree in Mechanical Engineering at Moscow Aviation Institute and a Ph.D. Degree in Mechanical Engineering at Moscow State Technical University. Dr. Kapelevich has over 40 years of gear transmission research and design experience. He began his career working in the Russian Aviation Industry, where he was involved in R&D, software development, testing, and failure investigation for aerospace gear transmissions. Living in the USA since 1994, he developed the Direct Gear Design methodology for custom gear transmissions which have been implemented in various fields such as aerospace, automotive, agriculture, defense, robotics, racing, and many others. His specialty is the gear drive architecture, planetary systems, gear tooth geometry optimization, gears with asymmetric teeth, and gear transmission performance maximization. Dr. Kapelevich is the author of the book titled ""Direct Gear Design"" and many technical articles. He is a member of the American Gear Manufacturers Association."
This book covers the development stages of asymmetric gear trains, progressing from theory through analysis, manufacturing, and final applications. The author shows the benefits of the asymmetric mesh, and includes practical recommendations for gear fabrication. This material can be useful for new gearbox designs as well as for applications where higher gearbox torque capabilities are required within limited existing envelopes. Overall, this new work will offer helpful information for multiple generations of engineers. -Yuriy Gmirya, Sikorsky Aircraft Corporation, a Lockheed Martin Company