发明名称 |
DUAL-AXIS RESONANCE TESTING OF WIND TURBINE BLADES |
摘要 |
An apparatus (100) for fatigue testing test articles (104) including wind turbine blades. The apparatus (100) includes a test stand (110) that rigidly supports an end (106) of the test article (104). An actuator assembly (120) is attached to the test article (104) and is adapted for substantially concurrently imparting first and second forcing functions in first and second directions on the test article (104), with the first and second directions being perpendicular to a longitudinal axis. A controller (130) transmits first and second sets of displacement signals (160, 164) to the actuator assembly (120) at two resonant frequencies of the test system (104). The displacement signals (160, 164) initiate the actuator assembly (120) to impart the forcing loads to concurrently oscillate the test article (104) in the first and second directions. With turbine blades, the blades (104) are resonant tested concurrently for fatigue in the flapwise and edgewise directions.
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申请公布号 |
WO2009097049(A3) |
申请公布日期 |
2009.11.26 |
申请号 |
WO2008US86027 |
申请日期 |
2008.12.09 |
申请人 |
ALLIANCE FOR SUSTAINABLE ENERGY, LLC;HUGHES, SCOTT;MUSIAL, WALTER;WHITE, DARRIS |
发明人 |
HUGHES, SCOTT;MUSIAL, WALTER;WHITE, DARRIS |
分类号 |
G01M13/00;F01D25/00;G01M7/00;G01N3/00 |
主分类号 |
G01M13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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