Trends in acoustic properties of iron particle seeded auxetic polyurethane foam

被引：128

作者：

Scarpa, F ^{[1
]}

Bullough, WA ^{[1
]}

Lumley, P ^{[1
]}

机构：

[1] Univ Sheffield, Dept Engn Mech, Multidomain Cellular Slida Lab, Sheffield S1 3JD, S Yorkshire, England

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE | 2004年 / 218卷 / 02期

关键词：

auxetics; MRF; foam; acoustic absorption; synergy;

D O I：

10.1243/095440604322887099

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The sound absorption characteristic of a clean, open-cell configuration, typical polyurethane flexible foam is shown against that of an auxetic foam made from it, and this same foam after it has been seeded with a magnetorheological fluid (then dried), having 2-5 mum carbonyl iron particles and subjected to zero, weak and concentrated magnetic fields in an acoustic impedance tube facility. The resultant foam indicates the capability of shifting the peak acoustic absorption coefficient within a given frequency bandwidth when constant intensity magnetic fields are applied.

引用

页码：241 / 244

页数：4

共 4 条

[1] Fabrication methods for auxetic foams [J].