Computer Analysis of Wind Turbine Blade Dynamic Loads

R. W. Thresher; E. L. Hershberg; A. D. Wright

Computer Analysis of Wind Turbine Blade Dynamic Loads

R. W. Thresher, E. L. Hershberg, A. D. Wright

National Renewable Energy Laboratory

Research output: Contribution to conference › Paper › peer-review

Abstract

The flapping motion of a single wind turbine rotor blade has been analyzed and equations describing the flapping motion have been developed. The analysis was constrained to allow only flapping motions for a cantilevered blade, and the equations of motion are linearized. A computer code, called FLAP (Force and Loads Analysis Program), to solve the equations of motion and compute the blade loads has been completed and compared to measured loads for a 3-bladed downwind turbine with stiff blades. The results of the program are presented in tabulated form for equidistant points along the blade and equal azimuth angles around the rotor disk.

Original language	American English
Pages	33-42
Number of pages	10
State	Published - 1985
Event	Fourth ASME Wind Energy Symposium: Eighth Annual Energy-Sources Technology Conference and Exhibition - Dallas, Texas Duration: 17 Feb 1985 → 21 Feb 1985

Conference

Conference	Fourth ASME Wind Energy Symposium: Eighth Annual Energy-Sources Technology Conference and Exhibition
City	Dallas, Texas
Period	17/02/85 → 21/02/85

Bibliographical note

Work performed by Solar Energy Research Institute Wind Energy Research Center, Golden, Colorado, and Techtronics Incorporated, Beaverton, Oregon

NREL Publication Number

ACNR/CP-214-7531

Cite this

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title = "Computer Analysis of Wind Turbine Blade Dynamic Loads",

abstract = "The flapping motion of a single wind turbine rotor blade has been analyzed and equations describing the flapping motion have been developed. The analysis was constrained to allow only flapping motions for a cantilevered blade, and the equations of motion are linearized. A computer code, called FLAP (Force and Loads Analysis Program), to solve the equations of motion and compute the blade loads has been completed and compared to measured loads for a 3-bladed downwind turbine with stiff blades. The results of the program are presented in tabulated form for equidistant points along the blade and equal azimuth angles around the rotor disk.",

author = "Thresher, {R. W.} and Hershberg, {E. L.} and Wright, {A. D.}",

note = "Work performed by Solar Energy Research Institute Wind Energy Research Center, Golden, Colorado, and Techtronics Incorporated, Beaverton, Oregon; Fourth ASME Wind Energy Symposium: Eighth Annual Energy-Sources Technology Conference and Exhibition ; Conference date: 17-02-1985 Through 21-02-1985",

year = "1985",

language = "American English",

pages = "33--42",

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TY - CONF

T1 - Computer Analysis of Wind Turbine Blade Dynamic Loads

AU - Thresher, R. W.

AU - Hershberg, E. L.

AU - Wright, A. D.

N1 - Work performed by Solar Energy Research Institute Wind Energy Research Center, Golden, Colorado, and Techtronics Incorporated, Beaverton, Oregon

PY - 1985

Y1 - 1985

N2 - The flapping motion of a single wind turbine rotor blade has been analyzed and equations describing the flapping motion have been developed. The analysis was constrained to allow only flapping motions for a cantilevered blade, and the equations of motion are linearized. A computer code, called FLAP (Force and Loads Analysis Program), to solve the equations of motion and compute the blade loads has been completed and compared to measured loads for a 3-bladed downwind turbine with stiff blades. The results of the program are presented in tabulated form for equidistant points along the blade and equal azimuth angles around the rotor disk.

AB - The flapping motion of a single wind turbine rotor blade has been analyzed and equations describing the flapping motion have been developed. The analysis was constrained to allow only flapping motions for a cantilevered blade, and the equations of motion are linearized. A computer code, called FLAP (Force and Loads Analysis Program), to solve the equations of motion and compute the blade loads has been completed and compared to measured loads for a 3-bladed downwind turbine with stiff blades. The results of the program are presented in tabulated form for equidistant points along the blade and equal azimuth angles around the rotor disk.

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M3 - Paper

AN - SCOPUS:0022242020

SP - 33

EP - 42

T2 - Fourth ASME Wind Energy Symposium: Eighth Annual Energy-Sources Technology Conference and Exhibition

Y2 - 17 February 1985 through 21 February 1985

ER -

Computer Analysis of Wind Turbine Blade Dynamic Loads

Abstract

Conference

Bibliographical note

NREL Publication Number

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Cite this