期刊
JOURNAL OF SOUND AND VIBRATION
卷 291, 期 3-5, 页码 1004-1028出版社
ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsv.2005.07.019
关键词
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The aim of this paper is to design a stiff and lightweight passive vibration isolator that has wide stop-band at low frequencies. First of all, bandwidths of single-degree-of-freedom (sdof) dynamic vibration absorbers and lever-type anti-resonant vibration isolators are formulated in a general framework. Then, by making use of these formulations, a 2dof vibration isolator is synthesized to obtain large bandwidth at low frequencies. It has been shown that inertial coupling was beneficial in obtaining a stiff and lightweight design. More importantly, asymmetry in the inertial forcing terms generated by the levered masses yielded a vibration isolator that has two anti-resonance frequencies in its stop-band. Finally, bandwidth improvement over the previously analyzed isolators is demonstrated via numerical examples. (c) 2005 Elsevier Ltd. All rights reserved.
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