Enhanced passive targeted energy transfer in strongly nonlinear mechanical oscillators

被引：85

作者：

Gendelman, O. V. ^{[1
]}

Sapsis, T. ^{[2
]}

Vakakis, A. F. ^{[3
]}

Bergman, L. A. ^{[4
]}

机构：

[1] Technion Israel Inst Technol, Fac Mech Engn, IL-32000 Haifa, Israel

[2] MIT, Cambridge, MA 02139 USA

[3] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA

[4] Univ Illinois, Dept Aerosp Engn, Urbana, IL 61801 USA

来源：

JOURNAL OF SOUND AND VIBRATION | 2011年 / 330卷 / 01期

基金：

以色列科学基金会;

关键词：

RESONANCE CAPTURES; LINEAR-OSCILLATORS; PART II; SYSTEM; ATTACHMENTS; EFFICIENCY; SINK;

D O I：

10.1016/j.jsv.2010.08.014

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Single-degree-of-freedom (SDOF) nonlinear energy sinks (NESS) can efficiently mitigate broadband disturbances applied to primary linear systems by means of passive targeted energy transfer (TEE), but for a rather limited range of energies. We demonstrate that the TET can be significantly enhanced for broad range of energies by introducing additional internal degrees of freedom to the NES in a highly asymmetric fashion. Numerical simulations demonstrate that the enhanced performance is due to a positive synergistic effect of the internal degrees of freedom of the proposed NES with highly asymmetric stiffnesses. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1 / 8

页数：8

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