The impact of complex forcing on the viscous torsional vibration damper’s work in the crankshaft of the rotating combustion engine

• Autorzy: Jagiełowicz-Ryznar C.

Identyfikatory

DOI

10.1515/ijame-2016-0063

• Języki publikacji: EN

Abstrakty

EN

The numerical calculations results of torsional vibration of the multi-cylinder crankshaft in the serial combustion engine (MC), including a viscous damper (VD), at complex forcing, were shown. In fact, in the MC case the crankshaft rotation forcings spectrum is the sum of harmonic forcing whose amplitude can be compared with the amplitude of the 1st harmonic. A significant impact, in the engine operational velocity, on the vibration damping process of MC, may be the amplitude of the 2nd harmonic of a forcing moment. The calculations results of MC vibration, depending on the amplitude of the 2nd harmonic of the forcing moment, for the first form of the torsional vibration, were shown. Higher forms of torsional vibrations have no practical significance. The calculations assume the optimum damping coefficient VD, when the simple harmonic forcing is equal to the base critical velocity of the MC crankshaft.

Słowa kluczowe

EN

combustion engine; crankshaft; torsional vibration; viscous damper

PL

amortyzator; wał korbowy silnika; drgania skrętne

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2016
• Tom: Vol. 21, no. 4
• Strony: 1017--1023
• Opis fizyczny: Bibliogr. 8 poz., rys., wykr.

Twórcy

autor

Jagiełowicz-Ryznar C.

• Department of Applied Mechanics and Robotics, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

Bibliografia

• [1] Niewiarowski . (1963): Rotating Combustion Engines. - Warsaw: WKiŁ.
• [2] Giergiel J. (1990): The Mechanical Vibrations Damping. - Warsaw: WNT.
• [3] Giergiel J. (2000): Mechanical Vibrations. - Krakow: UWNT AGH.
• [4] Osinski Z. (1978): The Theory of Vibration. - Warsaw: PWN.
• [5] Gryboś R. (1969): The Impact Theory in Discrete Mechanical Systems. - Warsaw: IPPT-PAN.
• [6] Jagiełowicz-Ryznar C. (2015): The research of crankshaft viscous torsional vibration dampers of combustion engine. - Mechanical Overview, No., pp.35-39, Warsaw.
• [7] Jagiełowicz-Ryznar C. (2015): The Test Method of Viscous Damping Factor of Torsional Vibration Damper. - Monograph: Transport No.5, Rzeszów University of Technology Publishing House.
• [8] Jagiełowicz-Ryznar C. (2016): Dry friction effect on the work of torsion viscous damper. - Applied Mechanics and Materials, vol.817, pp.13-18.