Abstract
The paper presents the optimization approach to the process of computerized design of involute spur and helical gears. The basis of the proposed approach (named as the concept of dynamic blocking contour - DBC) is the procedure of optimizing the definition of shift coefficients of a pinion and gearwheel of a gear. Examples, considered in the paper, are obtained by means of the CAD system "Contour", where the proposed method is implemented. Versions of solving some tasks, arising in practical gear design, are shown. A new approach to computerized design of involute spur and helical gears is also considered in this paper, based on the synthesis of DBC method and the method of Direct Gear Design (DGD) which is intensively developing nowadays.