Energy harvesting below the onset of flutter

被引：11

作者：

Stender, Merten ^{[1
]}

Tiedemann, Merten ^{[2
]}

Hoffmann, Norbert ^{[1
,3
]}

机构：

[1] Hamburg Univ Technol, Hamburg, Germany

[2] AUDI AG, Ingolstadt, Germany

[3] Imperial Coll London, London, England

来源：

JOURNAL OF SOUND AND VIBRATION | 2019年 / 458卷

关键词：

Energy harvesting; Friction; Friction-induced vibrations; Mode-coupling; Left eigenvectors; INSTABILITY;

D O I：

10.1016/j.jsv.2019.06.015

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This work demonstrates preliminary results on energy harvesting from a linearly stable flutter-type system with circulatory friction forces. Harmonic external forcing is applied to study the energy flow in the steady sliding configuration. In certain parameter ranges negative excitation work is observed where the external forcing allows to pull part of the friction energy out of the system and thus makes energy harvesting possible. Studies reveal that this behavior is largely independent of the flutter point and thus that it is primarily controlled by the excitation. Contrary to existing energy harvesting approaches for such systems, this approach uses external forcing in the linearly stable regime of the oscillator which allows to control vibrations and harvest energy on demand. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：17 / 21

页数：5

共 10 条

[1] Left eigenvectors: Extraction from measurements and physical interpretation [J].