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DESIGN AND APPLICATION OF A NONLINEAR ENERGY SINK TO MITIGATE VIBRATIONS OF AN AIR SPRING SUPPORTED SLAB

机译:减轻空气弹簧支撑平板振动的非线性能量沉的设计与应用

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摘要

In this paper we consider the application of a nonlinear energy sink (NES), a passive isolation device, to damp out energy from the low frequency modes of an air-spring supported slab to be installed at Purdue University's Birck Nanotechnology Center. Analytical expressions to obtain energy sink design parameters, given some primary system specifications, have been derived. These expressions are then used to design the NES for the Birck air-spring supported slab. The designed NES is then analyzed via finite elements to study its efficacy in absorbing low frequency vibration from the slab. The study reveals that NES can serve as a good aid in dissipating vibrational energy induced by small disturbances in the slab.
机译:在本文中,我们考虑使用非线性能量吸收器(NES)(一种无源隔离装置)来消减将要安装在普渡大学伯克纳米技术中心的空气弹簧支撑平板的低频模式中的能量。给出了一些主要系统规格,得出了获得能量吸收器设计参数的解析表达式。然后使用这些表达式设计Birck空气弹簧支撑平板的NES。然后通过有限元分析所设计的NES,以研究其吸收板坯低频振动的功效。研究表明,NES可以很好地消散板坯中小扰动引起的振动能。

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