A Gradient Cellular Core for Aeroengine Fan Blades Based on Auxetic Configurations

被引：132

作者：

Lira, C. ^{[1
]}

Scarpa, F. ^{[1
]}

Rajasekaran, R. ^{[2
]}

机构：

[1] Univ Bristol, Adv Composites Ctr Innovat & Sci, Bristol BS8 1TR, Avon, England

[2] Rolls Royce PLC, Mech Methods, Derby DE24 8BJ, England

来源：

JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES | 2011年 / 22卷 / 09期

关键词：

polymers; composites < morphing < piezoelectric; optimization; TRANSVERSE-SHEAR; FINITE-ELEMENT; RATIO; BEAM;

D O I：

10.1177/1045389X11414226

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, gradient cellular centresymmetric auxetic configurations are evaluated as potential cores for aeroengine fan blades, and optimized to reduce the dynamic response for the first three fundamental modes. Auxetic (negative Poisson's ratio) re-entrant cellular beams are modeled, manufactured, and tested to assess their natural frequencies and mode shapes. Gradient versions of these beams with a varying internal cell angle are then designed to be incorporated as fillers in a baseline fan blade model. The optimized configurations of the gradient core lead to a substantial decrease of the mass of the fan blade, reduction of the dynamic modal displacements, and a lowering of the first three natural frequencies within the admissible frequency bandwidth.

引用

页码：907 / 917

页数：11

共 37 条

[1]

ABRAMOVITCH H, 2010, SCI TECHNOL, V70, P1079

[2] Mechanical properties of functionally graded 2-D cellular structures: A finite element simulation [J].

Ajdari, A. ;

Canavan, P. ;

Nayeb-Hashemi, H. ;

Warner, G. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 499 (1-2) :434-439

[3] Auxetic materials [J].

Alderson, A. ;

Alderson, K. L. .

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING, 2007, 221 (G4) :565-575

[4] Elastic constants of 3-, 4-and 6-connected chiral and anti-chiral honeycombs subject to uniaxial in-plane loading [J].

Alderson, A. ;

Alderson, K. L. ;

Attard, D. ;

Evans, K. E. ;

Gatt, R. ;

Grima, J. N. ;

Miller, W. ;

Ravirala, N. ;

Smith, C. W. ;

Zied, K. .

COMPOSITES SCIENCE AND TECHNOLOGY, 2010, 70 (07) :1042-1048

[5]

[Anonymous], 2013, Topology optimization: theory, methods, and applications

[6]

*ANSYS A, 2008, ANSYS REL 11 0 US MA

[7] The use and limitations of continuum modes for response calculations of cellular structures [J].

Banerjee, Sourish ;

Bhaskar, Atul .

JOURNAL OF SOUND AND VIBRATION, 2007, 302 (03) :457-470

[8] Composite chiral structures for morphing airfoils: Numerical analyses and development of a manufacturing process [J].

Bettini, Paolo ;

Airoldi, Alessandro ;

Sala, Giuseppe ;

Di Landro, Luca ;

Ruzzene, Massimo ;

Spadoni, Alessandro .

COMPOSITES PART B-ENGINEERING, 2010, 41 (02) :133-147

[9]

DOMINY J, 1994, COMPOS MANUF, V5, P69, DOI 10.1016/0956-7143(94)90057-4

[10]

Gibson L. J., 1997, CELLULAR SOLIDS STRU, V2nd ed

← 1 2 3 4 →