Nonlinear vibration control and energy harvesting of a beam using a nonlinear energy sink and a piezoelectric device

被引:135
作者
Ahmadabadi, Z. Nili [1 ]
Khadem, S. E. [2 ]
机构
[1] Ecole Technol Super, Dept Mech Engn, Montreal, PQ H3C 1K3, Canada
[2] Tarbiat Modares Univ, Dept Mech Engn, Tehran, Iran
关键词
MECHANICAL OSCILLATORS; DYNAMICS; CONFINEMENT; ABSORBERS; GENERATOR; SYSTEMS; DESIGN;
D O I
10.1016/j.jsv.2014.04.033
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
This paper presents an optimal design for a system comprising a nonlinear energy sink (NES) and a piezoelectric-based vibration energy harvester attached to a free-free beam under shock excitation. The energy harvester is used for scavenging vibration energy dissipated by the NES. Grounded and ungrounded configurations are examined and the systems parameters are optimized globally to both maximize the dissipated energy by the NES and increase the harvested energy by piezoelectric element. A satisfactory amount of energy has been harvested as electric power in both configurations. The realization of nonlinear vibration control through one-way irreversible nonlinear energy pumping and optimizing the system parameters result in acquiring up to 78 percent dissipation of the grounded system energy. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:4444 / 4457
页数:14
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