DYNAMIC SYSTEM OF BUNGEE CATAPULT WITH IMPLEMENTATION OF ELASTIC AND NON-ELASTIC CORDS

A movable bungee catapult system with the implementation of elastic and non-elastic ropes allows reducing energy losses and increases launch power of bungee catapult. The novelty of present invention is in implementation of non-elastic cord (6), the stationary pulleys (8) and (9) and slider (4) with a movable pulley (7) in movable bungee catapult system.One end of a set of elastic ropes (5) is firmly connected to the launching ramp (1), and the other end is connected to the slider (4) which carries on a movable pulley (7). Moving from the starting position (100) to the end position (01), a movable pulley (7) pulls and rewinds non-elastic rope (6) across stationary pulley (9). Non-elastic rope (6) is at the one end firmly connected with a launching trolley (2), and its other end is wounded on the drum winch (3) and transferred via the stationary pulley (8). Linear displacement of the slider (4) make the straight contraction sets of elastic ropes (5), which reduces energy losses and allows installation of a multiple number of ropes in the set of elastic ropes (5). Non-elastic rope (6) takes power transfer and motion to the launch trolley (2), rewinding through movable pulley (7) and the stationary pulley (9), and that reducing the inertia of the movable system which further reduces the energy losses of the bungee catapult. Altogether, increases the launch power, which further accelerates the launching trolley (2) with unmanned aircraft (10) from the initial position (102) to a position (103). Kretni sistem bandži katapulta sa primenom elastičnih i neelastičnih užadi omogućava smanjenje energetskih gubitaka i povećava lansirnu moć bandži katapulta. Predmetni pronalazak ima za novost to što u kretni sistem bandži katapulta uvodi neelastično uže (6), stacionarne koturače (8) i (9) i klizač (4) sa putujućom koturačom (7).Jedan kraj kompleta elastičnih užadi (5) čvrsto je spojen sa lansirnom rampom (1), a drugim krajem je spojen sa klizačem (4) koji na nosi putujuću koturaču (7). Putujući iz početne pozicije (100) u krajnju poziciju (01), putujuća koturača (7) povlači i premotava neelastično uže (6) preko stacionarne koturače (9). Neelastično uže (6) je jednim svojim krajem čvrsto spojeno sa lansirnom dresinom (2), a drugim svojim krajem je namotano na doboš čekrka (3) i prebačeno preko stacionarne koturače (8). Pravolinijsko pomeranje klizača (4) uslovljava pravolonijsku kontrakciju kompleta elastičnih užadi (5), što smanjuje energetske gubitke i omogućava insta