Matematički model sustava za ubrizgavanje goriva

scientific master's theses

• Title (english): Mathematical model of fuel injection system
• Author: Mario Jelović
• Mentor: Dušan Jeras (mentor)
• Committee member: Branko Novaković (predsjednik povjerenstva)
• Committee member: Dušan Jeras (član povjerenstva)
• Committee member: Ivan Mavrin (član povjerenstva)
• Committee member: Zdravko Virag (član povjerenstva)
• Committee member: Ivan Mahalec (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 1999-11-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering
• Universal decimal classification (UDC): 621 - Mechanical engineering. Nuclear technology. Machinery

Abstract

U ovom su radu na osnovi autorovog iskustva pri projektiranju i analizi sustava za ubrizgavanje goriva formirani novi matematički modeli čija uporaba ima za pos1jedicu veću točnost u analizi ponašanja sustava od do sada primjenjivanih modela. Time se omogućuje bolje provodenje parametarskih studija sustava nekorištenjem skupog procesa provjere modela na ispitnim stolovima. Faktori kao što su fenomen širenja udarnog vala, promjena modula elastičnosti i brzine zvuka s promjenom tlaka, trenje u cjevovodu, elastične stijenke cijevovoda, kavitacija i mnogi drugi su uključeni u model. Na kraju su prikazani rezultati proračuna to je izvršena njihova usporedba s rezultatima mjerenja na stvarnim modelima koja pokazuju da je razvijen precizan i jednostavan program za simuliranje sustava za ubrizgavanje goriva.

Abstract (english)

In this work based on the authors experiance in designing and analysing of fuel injection systems behavior, new mathematical models are formed which in comparison with earlier applied models have proved more accurate. This enables better parametric studies of system without using expensive experiment tehnologie. The influence of such factors as wave propagation phenomena, effect of pressure on fuel bulk modulus and the wave speed, pipe friction, compliant walls, cavitation, and many others are included. At the end, the computer results are shown and compared with meassurments on a fuel injection system operating on an engine. The comparison show the accuracy and validity of the simulation model.

• Keywords: motori s unutrasnjim izgaranjem; dizel-motori; ubrizgavanje goriva; common-rail; simulacija
• Keywords (english): internal combustion engine; diesel-engine; injection; common-rail; simulation
• Language: croatian
• URN:NBN: urn:nbn:hr:235:385234
• Study programme: Title: Mechanical Engineering - mr.sc.; Study programme type: university; Study level: postgraduate; Academic / professional title: magistar znanosti (magistar znanosti)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-02-04 12:47:01