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Dynamic stiffness analysis of a nonlinear vibration isolation model with asymmetrical and quasi-zero stiffness characteristics
Abstract
As well known, nonlinear vibration isolation models may offer potential effectiveness for isolating low frequency vibrations. Therefore, this paper will introduce a nonlinear vibration isolator model, featuring asymmetrical and quasi-zero stiffness characteristics shorten AQZSI. Firstly, the physical model of the nonlinear vibration oscillation is shown, including a semicircular cam-roller and wedge-roller mechanism, in which cylinder adding auxiliary tank is worked as an elastic element. Secondly, its dynamic stiffness is built and numerically simulated. Based on this, the parameters which effect on dynamic stiffness of the system are identified. This study is the major premise not only to analyze the dynamic response but also to design a useful quasi-zero stiffness vibration isolator.
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DOI: http://dx.doi.org/10.30811/jpl.v19i1.1956
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Politeknik Negeri LhokseumaweJl. Banda Aceh-Medan Km 280
Buketrata, Lhokseumawe, 24301, Aceh, Indonesia