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.
Zielona Góra: Uniwersytet Zielonogórski
IJAME, volume 21, number 4 (2016)
Biblioteka Uniwersytetu Zielonogórskiego
Jul 6, 2023
Apr 11, 2023
89
https://zbc.uz.zgora.pl/publication/80598
Jagiełowicz-Ryznar, Celina Jurczak, Paweł - red.
Mirzaei, M. Hashemi, S. M. Saranjam, B. Binesh, A. Jurczak, Paweł - red.
Silva, Tiago Loja, Maria Maia, Nuno Barbosa, Joaquim Korbicz, Józef (1951- ) - red. Uciński, Dariusz - red.