Dual-axis resonance testing of wind turbine blades
    1.
    发明授权
    Dual-axis resonance testing of wind turbine blades 有权
    风力发电机叶片的双轴共振测试

    公开(公告)号:US08621934B2

    公开(公告)日:2014-01-07

    申请号:US12747458

    申请日:2008-12-09

    IPC分类号: G01N3/32

    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.

    摘要翻译: 一种用于对包括风力涡轮机叶片的试验物品(104)进行疲劳试验的装置(100)。 设备(100)包括刚性地支撑测试物品(104)的端部(106)的测试台(110)。 致动器组件(120)附接到测试制品(104)并且适于在测试制品(104)上基本上同时施加第一和第二方向上的第一和第二强制功能,其中第一和第二方向垂直于 纵轴。 控制器(130)在测试系统(104)的两个谐振频率处将第一组和第二组位移信号(160,164)发送到致动器组件(120)。 位移信号(160,164)启动致动器组件(120)以使迫使负载同时在第一和第二方向上摆动测试物品(104)。 对于涡轮叶片,叶片(104)同时进行共振测试,以便在翼形和沿方向上的疲劳。

    Resonance test system
    2.
    发明授权
    Resonance test system 有权
    共振测试系统

    公开(公告)号:US07953561B2

    公开(公告)日:2011-05-31

    申请号:US10520011

    申请日:2002-07-03

    IPC分类号: G01L5/00 G06F11/00

    摘要: An apparatus (10) for applying at least one load to a specimen (12) according to one embodiment of the invention may comprise a mass (18). An actuator (20) mounted to the specimen (12) and operatively associated with the mass (18) moves the mass (18) along a linear displacement path (22) that is perpendicular to a longitudinal axis of the specimen (12). A control system (26) operatively associated with the actuator (20) operates the actuator (20) to reciprocate the mass (18) along the linear displacement path (22) at a reciprocating frequency, the reciprocating frequency being about equal to a resonance frequency of the specimen (12) in a test configuration.

    摘要翻译: 根据本发明的一个实施例的用于向样本(12)施加至少一个负载的装置(10)可以包括质量(18)。 安装到样本(12)并与质量块(18)可操作地相关联的致动器(20)沿着垂直于样本(12)的纵向轴线的线性位移路径(22)移动质量块(18)。 与致动器(20)可操作地相关联的控制系统(26)操作致动器(20),以往复频率沿着线性位移路径(22)使质量(18)往复运动,往复运动频率约等于谐振频率 的试样(12)。

    DUAL- AXIS RESONANCE TESTING OF WIND TURBINE BLADES
    3.
    发明申请
    DUAL- AXIS RESONANCE TESTING OF WIND TURBINE BLADES 有权
    风力涡轮叶片的双轴共振测试

    公开(公告)号:US20100263448A1

    公开(公告)日:2010-10-21

    申请号:US12747458

    申请日:2008-12-09

    IPC分类号: G01M7/06

    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.

    摘要翻译: 一种用于对包括风力涡轮机叶片的试验物品(104)进行疲劳试验的装置(100)。 设备(100)包括刚性地支撑测试物品(104)的端部(106)的测试台(110)。 致动器组件(120)附接到测试制品(104)并且适于在测试制品(104)上基本上同时施加第一和第二方向上的第一和第二强制功能,其中第一和第二方向垂直于 纵轴。 控制器(130)在测试系统(104)的两个谐振频率处将第一组和第二组位移信号(160,164)发送到致动器组件(120)。 位移信号(160,164)启动致动器组件(120)以使迫使负载同时在第一和第二方向上摆动测试物品(104)。 对于涡轮叶片,叶片(104)同时进行共振测试,以便在翼形和沿方向上的疲劳。

    Resonance test system
    4.
    发明申请
    Resonance test system 有权
    共振测试系统

    公开(公告)号:US20060037402A1

    公开(公告)日:2006-02-23

    申请号:US10520011

    申请日:2002-07-03

    IPC分类号: G01M7/02 G01N3/32

    摘要: An apparatus (10) for applying at least one load to a specimen (12) according to one embodiment of the invention may comprise a mass (18). An actuator (20) mounted to the specimen (12) and operatively associated with the mass (18) moves the mass (18) along a linear displacement path (22) that is perpendicular to a longitudinal axis of the specimen (12). A control system (26) operatively associated with the actuator (20) operates the actuator (20) to reciprocate the mass (18) along the linear displacement path (22) at a reciprocating frequency, the reciprocating frequency being about equal to a resonance frequency of the specimen (12) in a test configuration.

    摘要翻译: 根据本发明的一个实施例的用于向样本(12)施加至少一个负载的装置(10)可以包括质量(18)。 安装到样本(12)并与质量块(18)可操作地相关联的致动器(20)沿着垂直于样本(12)的纵向轴线的线性位移路径(22)移动质量块(18)。 与致动器(20)可操作地相关联的控制系统(26)操作致动器(20),以往复频率沿着线性位移路径(22)使质量(18)往复运动,往复运动频率约等于谐振频率 的试样(12)。