Physical and analytical interpretation of teetering rotor loads
Conference
·
OSTI ID:372111
- National Renewable Energy Lab., Golden, CO (United States). Wind Technology Div.
This paper presents an extended theory that includes the coupling effects mentioned earlier. It is based on fundamental dynamics principles, periodicity constraints, and teetering hinge kinematics. Physical insight is provided into mechanisms that govern teetering blade loads. The effects of delta-3 hinge, blade twist, mass and stiffness properties also are explained. Selective results are presented to demonstrate how tuning of blade mass, flexural stiffness and twist, together with tower lateral and longitudinal bending stiffness, reduce rotor vibration loads. The authors hope that this paper will provide designers with useful information to design teetering blades at low costs and for higher fatigue lives.
- OSTI ID:
- 372111
- Report Number(s):
- CONF-960154--; ISBN 0-9648731-8-4
- Country of Publication:
- United States
- Language:
- English
Similar Records
An investigation of methods for reducing blade and system loads for two-bladed teetering-hub horizontal-axis wind turbines
Effects of blade bending on aerodynamic control of fluctuating loads on teetered HAWT rotors
Effects of blade bending on aerodynamic control of fluctuating loads on teetered HAWT rotors
Conference
·
Fri Sep 01 00:00:00 EDT 1995
·
OSTI ID:93015
Effects of blade bending on aerodynamic control of fluctuating loads on teetered HAWT rotors
Journal Article
·
Thu Oct 31 23:00:00 EST 1996
· Journal of Solar Energy Engineering
·
OSTI ID:438769
Effects of blade bending on aerodynamic control of fluctuating loads on teetered HAWT rotors
Conference
·
Tue Oct 01 00:00:00 EDT 1996
·
OSTI ID:372113