Aleš Hribernik (Author)

Abstract

V prispevku sta predstavljena nelinearni model enovaljnega dizelskega motorja za preračun prehodnih delovnih režimov motorja in napoved spremenljivega momenta in vrtilne frekvence motorja. Model je razvit iz modela za simuliranje termodinamčinega krožnega procesa motorja v ustaljenih razmerah, razširjen z modelom dinamike ročičnega mehanizma predstavlja motor kot nelinearni dinamični sistem. Spremenljiva vrtilna frekvenca motorja je rezultat reševanja enačbe dinamike zveze motor - breme, pri čemer je spremenljivi moment motorja določen v odvisnosti od lege (kota) ročične gredi. Model smo preverili z rezultati meritev enovaljnega dizelskega motorja. Primerjava računskih in izmerjenih vrtilnih frekvenc je pokazala zelo dobro ujemanje ponavljajočih se sprememb vrtilne frekvence in odziva motorja med naglim pospeševanjem.

Keywords

motorji z notranjim zgorevanjem;termodinamični modeli;dinamika motorjev;simulacija;

Data

Language: Slovenian
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: Association of Mechanical Engineers and Technicians of Slovenia et al.
UDC: 621.43:621.436
COBISS: 5009430 Link will open in a new window
ISSN: 0039-2480
Parent publication: Strojniški vestnik
Views: 948
Downloads: 30
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Other data

Secondary language: English
Secondary title: Simulation of the transient operation of an internal combustion engine
Secondary abstract: A non-linear, transient, single-cyliner Diesel engine simulation has been developed to predict the instantaneous engine speed and torque. The basis of the model is a thermodynamic, steady state Diesel engine cycle simulation. The transient extension of the original model represents the Diesel engine as a non-linear dynamic system. The instantaneous crankshaft speed is determined from the solution of the engine -external load dynamic equation, where the engine torque is tracked on the crank-angle basis. Validation of the transient model during rapid engine acceleration shows that both the cyclic fluctuations in the instanttaneous engine speed line and the overall engine response are in good agreement with experimental measurements.
Secondary keywords: internal combustion engines;thermodynamical models;engine dynamics;simulation;
URN: URN:NBN:SI
Type (COBISS): Not categorized
Pages: str. 423-431
Volume: ǂLet. ǂ45
Issue: ǂšt. ǂ11
Chronology: 1999
ID: 1750080