KoG, Vol. 4 No. 4, 1999.
Stručni rad
A New Approach to the Computer Aided Calculation of Points on the Envelope Helical Surface Characteristics
Dagmar Szarková
; Mechanical Engineering Faculty, Slovak Technical University, Bratislava, Slovakia
Sažetak
Presented calculations and the choice of variables u,v iz [0,1] as curvilinear on the given basic surface φ enable the creation of a versatile programme for the graphical processing of the characteristics not only of the envelope helical, but also rotational surface F defined by the basic rotational surface φ. Basic surface φ can be generated from the basic curve c determined by (1) applying a class of revolutions about the coordinate axis x defined by the matrix
T_R(v), for v iz [0,1] (2), that is positioned in the space by the transformation T (3). The envelope helical surface F can be created by helical movement of the points on the characteristics. The axis o of the helical movement located into the coordinate axis z is the axis of the surface F.
Ključne riječi
envelope surface; envelope helical surface; envelope rotational
Hrčak ID:
166503
URI
Datum izdavanja:
25.1.2000.
Posjeta: 612 *