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Wang Wenlin
Department of Mechanics,
Zhejiang University,
Hangzhou 310027, China
Feng Peien
Department of Mechanical Engineering,
Zhejiang University,
Hangzhou 310027, China |
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CHARACTERIZATION
FOR THE
DYNAMICS OF AN
ADJUSTABLE
LINEAR OIL
DAMPER FOR
ADVANCED RAIL VEHICLES*
Abstract: A parametric model for the dynamics of an adjustable linear oil damper equipped in advanced rail vehicles is developed. Instantaneous flow loss, oil compressibility, oil temperature and valve dynamics, etc. are taken into account in the nonlinear modeling process. A computer package based on the model is developed in MATLAB environment and numerical analyses are carried out on the damping performance by help of parameters identification. Experiments with a CAT rig are done at last and satisfied agreement is achieved between the numerical prediction and experiments. Oil temperature effect on the damping force rating is also investigated.
Key words:
Modeling Fluid dynamics Adjustable Orifice Damping performance Parameter identification Oil
temperature
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