KINEMATIC POSSIBILITIES OF A MECHANISM WITH 3 DYADS OF TYPE RPP

• Main Authors: Iulian POPESCU, Ludmila SASS, Alina Elena ROMANESCU
• Format: Article
• Language: English
• Published: Academica Brancusi 2018-05-01
• Series: Fiabilitate şi Durabilitate
• Subjects: trajectories; transfer functions; RPP dyad.
• Online Access: http://www.utgjiu.ro/rev_mec/mecanica/pdf/2018-01/03_Iulian%20POPESCU,%20Ludmila%20SASS,%20Alina%20Elena%20ROMANESCU%20-%20KINEMATIC%20POSSIBILITIES%20OF%20A%20MECHANISM%20WITH%203%20DYADS%20OF%20TYPE%20RPP.pdf

A mechanism with a leading element and three RPP dyads was built. A set of initial values was used in order to determine the mechanism‟s successive positions and plotted trajectory, which is an ellipse. The transfer functions are similar to sinusoids. The angles between the welded slides of two RPP dyads were successively modified. The resulting trajectories preserved the ellipsoid shape, but the parameters and positions were different. The sinusoidal characteristic of the transfer functions was preserved, but other values were obtained along the system axis. A size was cycled and overlapped ellipses were generated. Similar results were obtained when successively modifying the welded slides.