The Dynamic Response of Direct-Decoupler Hydraulic Mount
Journal of Shanghai Jiaotong University(2007)
摘要
A lumped parameter model was proposed for the analysis of dynamic behaviour of a passive hydraulic engine mount(PHEM) with incorporation of inertia track and direct-decoupler,which is characterized by effective and efficient vibration isolation behaviour in the range of both low and high frequencies.Most of the model parameters,including volume compliance of the decoupler chamber,effective piston(area,) fluid inertia and resistance of inertia track and decoupler are identified by experimental approach.Numerical predictions are obtained through a finite element method for the responses of dynamic stiffness of the nonlinear rubber spring.The experiments are made for the purpose of validation of the PHEM.It was shown by comparison of the numerical results with the experimental observations that the present PHEM achieves fairly good performance for the vehicle industry.
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关键词
dynamic response,direct-decoupler
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