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Samonapajalni hidravlični sistem katapulta
Matoh, Anže (Author), Majdič, Franc (Mentor) More about this mentor... This link opens in a new window

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Abstract
Večina naprav, s katerimi se ljudje v prostem času zabavajo, kot vir energije uporabljajo elektriko ali pa fosilna goriva. Cilj naše naloge je zasnovati napravo, ki za pogon katapulta uporablja energijo gibanja. Zasnovali smo konstrukcijo takega sistema in izračunali potrebne parametre. V teoretičnem delu so opisne hidravlične sestavine, ki jih vsebujejo omenjeni sistemi. V laboratoriju smo izdelali prototip naprave, ter na njem opravili meritve. Sistem vsebuje hidravlični akumulator, ki ga polnimo preko dveh ročnih črpalk. Te smo predelali v nožne, da imamo pri polnjenju več moči. V prvem sklopu meritev, smo ugotovili, da s sistemom lahko polnimo hidravlični akumulator prostornine 1 l do delavnega tlaka 15 MPa v času okrog pol minute. V drugem smo merili volumne iztisnin v odvisnosti od tlaka predpolnitve in delavnega tlaka ter ugotovili da je ustrezna izbira tlaka predpolnitve pomembna za količino iztisnjenega olja iz akumulatorja.

Language:Slovenian
Keywords:gibanje samonapajalni sistemi hidravlični akumulatorji polnjenje tlak ročne črpalke
Work type:Bachelor thesis/paper (mb11)
Organization:FS - Faculty of Mechanical Engineering
Year:2017
Views:305
Downloads:265
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Secondary language

Language:English
Title:Self-propelled hydraulic system of catapult
Abstract:
A lot of devices, which people use for fun, as energy source use electricity or fossil fuel. The goal of our thesis is to devise the system,which use kinetic energy for catapult power. We devise construction for this system and calculate all the important parameters. The theoretical part includes descriptive hydraulic components. We made device prototype and did all the measurments of our device in the laboratory. The system includes hydraulic accumulator. Two pedal pumps charging he hydraulic accumulator. We remade pumps in pedal, because they have got more power at inflation. As first part of our mesurements, we know: the system can fill hydraulic accumulator-volume of one liter to working pressure 15MPa in 30 seconds. As second part of our work, we measured volume of extracted oil in the dependence of precharge pressure and working pressure. Now we know: suitable choice of precharge pressure is imporatnt for quantity of extract oil from accumulator.

Keywords:movement self-propelled hydraulic systems hydraulic accumulators charging pressure hand pumps

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