Eine äquiaffine Charakterisierung der Cardan-Bewegung mittels der höheren Wendepole.
Envelope construction of two-parameteric system of curves in the technological practice
A two-parametric system of close planar curves is defined in the introduction of the presented article. Next a theorem stating the existence of the envelope is presented and proved. A mathematical model of the collecting mechanism of the Horal forage trailer is developed and used for practical demonstrations. The collecting mechanism is a double joint system composed of three rods. An equation describing the trajectory of a random point of the working rod is derived using Maple. The trajectories...