TY - JOUR
T1 - Mechanism of Hard Self-Excited Vibration in Poppet Valve (1st Report, The Case of Large Valve Lift)
AU - Hayashi, Satoru
AU - Kurahashi, Tetsuo
AU - Hayase, Toshiyuki
PY - 1993
Y1 - 1993
N2 - Hard self-excited vibrations occurring in a hydraulic system were analysed by a digital simulation method in the previous study. But the mechanism yet remains pending. In this paper, we investigate the mechanism of the hard self-excitation for a large valve lift by two methods, one of which is based on the shift of the vibration center by nonlinearity of the valve characteristics and the other is based on the energy balance into and out of the poppet. As a result, it is shown that the vibration is caused by asymmetry of the valve pressure-flow characteristics.
AB - Hard self-excited vibrations occurring in a hydraulic system were analysed by a digital simulation method in the previous study. But the mechanism yet remains pending. In this paper, we investigate the mechanism of the hard self-excitation for a large valve lift by two methods, one of which is based on the shift of the vibration center by nonlinearity of the valve characteristics and the other is based on the energy balance into and out of the poppet. As a result, it is shown that the vibration is caused by asymmetry of the valve pressure-flow characteristics.
KW - Energy Balance Method
KW - Flow-Induced Vibration
KW - Hard Self-Excitation
KW - Nonlinear Vibration
KW - Oil Hydraulics
KW - Poppet Valve
KW - Self-Excited Vibration
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U2 - 10.1299/kikaic.59.2020
DO - 10.1299/kikaic.59.2020
M3 - Article
AN - SCOPUS:84998411886
SN - 0387-5024
VL - 59
SP - 2020
EP - 2025
JO - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
JF - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
IS - 563
ER -