Open AccessChange of constraints in rope articulated structures
Author(s) -
W. Szczęśniak,
M. Ataman
Publication year - 2019
Publication title -
przegląd komunikacyjny
Language(s) - English
Resource type - Journals
eISSN - 2544-6037
pISSN - 0033-2232
DOI - 10.35117/a_eng_19_11_05
Subject(s) - rope , acceleration , simple (philosophy) , classical mechanics , mechanics , particle (ecology) , physics , shield , structural engineering , engineering , geology , petrology , philosophy , oceanography , epistemology
In the paper four examples of two-dimensional and three-dimensional material systems, in which some of constraints were suddenly removed, are analyzed. A simple structure consisting of two ropes and a particle, a spatial structure consisting of three weightless ropes and a particle, and a beam suspended on two ropes and a circular shield, also suspended on two ropes, were analyzed. In all cases one of the ropes was suddenly cut. Solutions were obtained by the analytical method, using the properties of the instantaneous center of acceleration. The obtained results are illustrated by diagrams of accelerations, angular accelerations and forces acting in the considered systems.