Analysis of bending-torsional vibrations for diagnostics of the crank system

• Autorzy: Burdzik R. , Pankiewicz J. , Wądołowski M.

Warianty tytułu

PL

Analiza drgań giętno-skrętnych dla potrzeb diagnostyki układu korbowego

• Języki publikacji: EN

Abstrakty

EN

The article presents the model of the crankshaft taking into account the coupling of bending and torsional vibrations. In engineering practice the simplification which is omitting this phenomenon is commonly used. Authors using more complicated model show the influence of bending torsional coupling on the frequency structure of the crank system.At the beginning of the article the problem of vibrations in combustion engine is generally discussed. Then there is presented the analysis of forces distribution in a crank system with the assumption that there is no friction in bearing nodes. Further chapters present two approaches to modeling torsional and bending vibrations in crank systems and indicate the application area of the proposed methodology. In the last but one chapter there were discussed the results of numerical simulations of the proposed model of the crank system. The whole was summarized with synthetic conclusions and plans regarding further research.

PL

Artykuł przedstawia model wału korbowego uwzględniający sprzężenie drgań giętnych i skrętnych. W praktyce inżynierskiej powszechnie stosuje się uproszczenie polegające na pominięciu tego zjawiska. Autorzy wykorzystując bardziej rozbudowany model, pokazują wpływ sprzężenia giętno-skrętnego na strukturę częstotliwościową układu korbowego. Na wstępie artykułu ogólnie omówiono zagadnienie drgań w silnikach spalinowych. Następnie przedstawiono analizę rozkładu sił w układzie korbowym przy założeniu braku tarcia w węzłach łożyskowych. Dalsze rozdziały prezentują dwa podejścia do modelowania drgań skrętnych i giętnych w układach korbowych oraz wskazują na obszar zastosowań proponowanej metodyki. W przedostatnim rozdziałe omówiono wyniki symulacji numerycznych zaproponowanego modelu układu korbowego. Całość podsumowano syntetycznymi wnioskami oraz planami odnośnie dalszych badań.

Słowa kluczowe

EN

crankshaft; torsional vibrations; modelling crank system; analitical solutions; numerical simulations

PL

wał korbowy; drgania skrętne; modelowanie; rozwiązanie analityczne; symulacja numeryczna

• Wydawca: Polskie Towarzystwo Diagnostyki Technicznej
• Czasopismo: Diagnostyka
• Rocznik: 2016
• Tom: Vol. 17, No. 4
• Strony: 79--84
• Opis fizyczny: Bibliogr. 33 poz., rys.

Twórcy

autor

Burdzik R.

• Silesian University of Technology, Poland, Krasińskiego 8, 40-019 Katowice

autor

Pankiewicz J.

• Warsaw University of Technology, Poland, Narbutta 84, 02-524 Warsaw

autor

Wądołowski M.

• Warsaw University of Technology, Poland, Narbutta 84, 02-524 Warsaw

Bibliografia

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