Kolomiyets' O. Mathematical and computer models of Surfaces in special normal Coordinates.

Normal coordinates and their applying for formation of surfaces. Investigating surface representation of normal coordinate system by means of bearing surface, investigating surface representation forms and solution methods of construction technological problems applying normal coordination. The investigating are carried by applying methods mathematical and computing modeling. They worked out a new mathematical apparatus of surfaces forming, the normal which play an essential role in a solution of a definite number of engineering problems: drawing normal surface, designing of machining with the numerical control machine tools, square determination, outlines length, body weight of a composite geometrical shell. The methodology of draft-quality and clean machining of composite form parts on the numerical control machine tools is transferred for introduction into production. Due to increasing accuracy of machining the economic effect is expected. Sphere of applying - shell designing, the numerical contro l machine tools processing, toothed engagment