Vibration Isolation Characteristics of Euler Strut Spring Used in Low Frequency Vibration Isolation System

Guan Jun Zhang; Xiang Zhu; Ran Xu; Tian Yun Li

doi:10.4028/www.scientific.net/AMM.248.475

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 248Vibration Isolation Characteristics of Euler Strut...

Vibration Isolation Characteristics of Euler Strut Spring Used in Low Frequency Vibration Isolation System

Abstract:

Recently, the Euler strut is used as the supporting spring in the low frequency isolation. An Euler spring is a column or strut of steel material which is compressed elastically beyond its buckling load, which makes the ratio of the isolated mass to the mass of the supporting spring maximum, and greatly increasing the internal resonant frequencies of the isolator. In this research, the unique mechanical properties and the expressions of the displacement transmissibility of the Euler strut are deduced. The influences of structural parameters of the strut on the stiffness and vibration isolation characteristics are investigated in detail. The results show that the Euler strut has the potential in low frequency vibration isolation, and the length and breadth of the strut can influence the stiffness, transmissibility and critical loading mass respectively.