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Modeling and Dynamics of a MDOF Isolation System
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Version 1
: Received: 11 April 2017 / Approved: 12 April 2017 / Online: 12 April 2017 (04:29:06 CEST)
A peer-reviewed article of this Preprint also exists.
Song, Y.; Sun, X. Modeling and Dynamics of a MDOF Isolation System. Appl. Sci. 2017, 7, 393. Song, Y.; Sun, X. Modeling and Dynamics of a MDOF Isolation System. Appl. Sci. 2017, 7, 393.
Abstract
This study analyzes the modeling and dynamics of a novel passive in Multi-Degree-of-Freedom (MDOF) vibration isolation platform which can achieve significant isolation effect. Symmetrical Scissor-Like structures (SLSs) are utilized in the proposed MDOF isolation platform as the supporting and isolation elastic components. Based on the mathematical modeling and theoretical analysis of the MDOF vibration isolation system with SLSs, the effect of structural parameter and joint friction on stiffness and damping properties is investigated. It is shown that due to geometric relations within the SLSs, the natural frequencies can be reduced via adjusting structural parameters of the SLS for different direction vibration isolation. Theoretical and experimental results show that the SLS isolation platform can achieve much better loading capacity and vibration isolation performance simultaneously by only using linear passive components because of the MDOF adjustable stiffness property. Therefore, with low costing and energy consumption, the proposed novel isolation platform can provide the improvement of vibration suppression in various engineering practices.
Keywords
MDOF isolation platform; geometrical nonlinearity; vibration suppression; adjustable stiffness property
Subject
Engineering, Mechanical Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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