{"id":101954,"key":"Elastic_Stability_Phenomena_Kit","title":"Elastic Stability Phenomena Kit","latest":{"id":1087727,"timestamp":"2024-01-29T18:35:03Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"{{Project data\n| made = Yes\n}}\n\n{{Device data|manufacturing-files=http://www.thingiverse.com/thing:5421837}}\n\n[[File:PartsIPK.png|thumb]]\n\nThe instability phenomena can be observed in a practical way by using the 3D printed kit that contains all the necessary tools and connections to create different cases in an easy and fun manner. You can find the files for 3D printing here: [https://www.thingiverse.com/thing:5421837 www.thingiverse.com/thing:5421837]\n\nThe instructions of use for the representation of each cases are explained in the following sections. The Elastic Stability Phenomena Kit (ESPK) contains different parts shown as follows:\n\n== Stable Symmetric Bifurcation with the ESPK ==\n\nThe symmetric stable case can be represented with items: 9 (Board); 6 (Torsion Spring); 7 (Bearing).\n\nThe torsion spring (6) is placed in one side at the board (9) position 1 and in the other side at the bearing (7) that is already in placed at the board (9) position 3. By pushing element 7 it is possible to observe a symmetric stable case.\n\n== Asymmetric Bifurcation with the ESPK ==\n\nThe Asymmetric stable case can be represented with items: 9 (Board); 8 (Big Strut); 1 (One Rubber Band); 2 (Big Pin).\n\nBy pushing on the item (2) in the direction of the strut, the asymmetric case can be observed. For the stable path, the strut should be deflected so the rubber band is stretched a little bit. For the unstable path, the strut should be deflected a little bit to the other direction.\n\n== Limit Point Bifurcation with the ESPK ==\n\nThe Limit Point case can be represented with items: 9 (Board); 1 (Rubber bands); 5 (Two Small Struts); 3 (Small Pin); 7 (Bearing).\n\nThe small struts (5) which are connected with the small pin (3) and placed on the board (9) on one side and in the bearing (7) on the other side. The rubber bands (1) are placed from the middle pin to each extreme pin.\n\nThe force should be applied in the union of the small struts (5) by pushing until the structure snaps through to the other side.\n\n{{Page data\n| authors = Jan Holldorb, Ando Jacobi, Elba Perez Torres\n| organizations = Technische Universität Berlin\n| language = en\n}}"}