The Clapping Book: Wind-Driven Oscillations in a Stack of Elastic Sheets

被引：33

作者：

Buchak, P. ^{[1
]}

Eloy, C. ^{[2
,3
]}

Reis, P. M. ^{[4
,5
]}

机构：

[1] MIT, Dept Math, Cambridge, MA 02139 USA

[2] CNRS, IRPHE, F-13013 Marseille, France

[3] Aix Marseille Univ, F-13013 Marseille, France

[4] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[5] MIT, Dept Civil & Environm Engn, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 19期

关键词：

INDUCED VIBRATIONS; FLOW; FILAMENTS;

D O I：

10.1103/PhysRevLett.105.194301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a hybrid experimental and theoretical study on the oscillatory behavior exhibited by multiple thin sheets under aerodynamic loading. Our clapping book consists of a stack of paper, clamped at the downstream end and placed in a wind tunnel with steady flow. As pages lift off, they accumulate onto a bent stack held up by the wind. The book collapses shut once the elasticity and weight of the pages overcome the aerodynamic force; this process repeats periodically. We develop a theoretical model that predictively describes this periodic clapping process.

引用

页数：4

共 23 条

[1] Flapping states of a flag in an inviscid fluid: Bistability and the transition to chaos [J].