Effect of steady deflections on the aeroelastic stability of a turbine blade

被引：32

作者：

Kallesoe, B. S. ^{[1
]}

机构：

[1] Tech Univ Denmark, Wind Energy Div, Riso DTU, DK-4000 Roskilde, Denmark

来源：

WIND ENERGY | 2011年 / 14卷 / 02期

关键词：

stability analysis; aeroelasticity; WIND TURBINES;

D O I：

10.1002/we.413

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper deals with effects of geometric non-linearities on the aeroelastic stability of a steady-state deflected blade. Today, wind turbine blades are long and slender structures that can have a considerable steady-state deflection which affects the dynamic behaviour of the blade. The flapwise blade deflection causes the edgewise blade motion to couple to torsional blade motion and thereby to the aerodynamics through the angle of attack. The analysis shows that in the worst case for this particular blade, the edgewise damping can be decreased by half. Copyright (C) 2010 John Wiley & Sons, Ltd.

引用

页码：209 / 224

页数：16

共 29 条

[1]

ASHWILL TD, 2010, P 48 AIAA AER SCI M

[2]

Chaviaropoulos P.K., 2001, Wind Energy, V4, P183, DOI [DOI 10.1002/WE.55, 10.1002/we.55]

[3]

DASILVA MRMC, 1986, VERTICA, V10, P171

[4] AEROELASTIC STABILITY AND RESPONSE ANALYSIS OF LARGE HORIZONTAL-AXIS WIND TURBINES [J].

FRIEDMANN, PP .

JOURNAL OF INDUSTRIAL AERODYNAMICS, 1980, 5 (3-4) :373-401

[5]

FRIEDMANN PP, 1982, J AM HELICOPTER SOC, V4, P28

[6] Aeroelastic instability problems for wind turbines [J].

Hansen, M. H. .

WIND ENERGY, 2007, 10 (06) :551-577

[7]

Hansen M.O.L., 2001, AERODYNAMICS WIND TU

[8] Aeroelastic stability analysis of wind turbines using an eigen value approach [J].

Hansen, MH .

WIND ENERGY, 2004, 7 (02) :133-143

[9] Improved modal dynamics of wind turbines to avoid stall-induced vibrations [J].

Hansen, MH .

WIND ENERGY, 2003, 6 (02) :179-195

[10]

HANSEN MH, 2004, RISOR1354EN RIS NAT

← 1 2 3 →