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    • 3. 发明授权
    • Wind turbine blade testing system using base excitation
    • 风力发电机叶片测试系统采用基极激励
    • US08677827B2
    • 2014-03-25
    • US12747487
    • 2008-12-12
    • Jason CotrellRobert ThresherScott LambertScott HughesJay Johnson
    • Jason CotrellRobert ThresherScott LambertScott HughesJay Johnson
    • G01N29/12
    • G01M7/06F03D17/00F05B2260/83G01M5/0016G01M7/04
    • An apparatus (500) for fatigue testing elongate test articles (404) including wind turbine blades through forced or resonant excitation of the base (406) of the test articles (404). The apparatus (500) includes a testing platform or foundation (402). A blade support (410) is provided for retaining or supporting a base (406) of an elongate test article (404), and the blade support (410) is pivotally mounted on the testing platform (402) with at least two degrees of freedom of motion relative to the testing platform (402). An excitation input assembly (540) is interconnected with the blade support (410) and includes first and second actuators (444, 446, 541) that act to concurrently apply forces or loads to the blade support (410). The actuator forces are cyclically applied in first and second transverse directions. The test article (404) responds to shaking of its base (406) by oscillating in two, transverse directions (505, 507).
    • 一种用于通过强制或共振激发测试物品(404)的基座(406)来疲劳测试细长测试物品(404)的装置(500),包括风力涡轮机叶片。 装置(500)包括测试平台或基座(402)。 提供了用于保持或支撑细长测试制品(404)的基部(406)的刀片支撑件(410),并且刀片支撑件(410)以至少两个自由度枢转地安装在测试平台(402)上 的运动相对于测试平台(402)。 励磁输入组件(540)与叶片支撑件(410)互连并且包括用于同时向叶片支撑件(410)施加力或负载的第一和第二致动器(444,446,541)。 致动器力沿第一和第二横向方向循环地施加。 测试物品(404)通过在两个横向(505,507)上振荡来响应其底座(406)的振动。
    • 5. 发明申请
    • WIND TURBINE BLADE TESTING SYSTEM USING BASE EXCITATION
    • 风力涡轮机叶片测试系统使用基础激励
    • US20100275695A1
    • 2010-11-04
    • US12747487
    • 2008-12-12
    • Jason CotrellRobert ThresherScott LambertScott HughesJay Johnson
    • Jason CotrellRobert ThresherScott LambertScott HughesJay Johnson
    • B06B1/00
    • G01M7/06F03D17/00F05B2260/83G01M5/0016G01M7/04
    • An apparatus (500) for fatigue testing elongate test articles (404) including wind turbine blades through forced or resonant excitation of the base (406) of the test articles (404). The apparatus (500) includes a testing platform or foundation (402). A blade support (410) is provided for retaining or supporting a base (406) of an elongate test article (404), and the blade support (410) is pivotally mounted on the testing platform (402) with at least two degrees of freedom of motion relative to the testing platform (402). An excitation input assembly (540) is interconnected with the blade support (410) and includes first and second actuators (444, 446, 541) that act to concurrently apply forces or loads to the blade support (410). The actuator forces are cyclically applied in first and second transverse directions. The test article (404) responds to shaking of its base (406) by oscillating in two, transverse directions (505, 507).
    • 一种用于通过强制或共振激发测试物品(404)的基座(406)来疲劳测试细长测试物品(404)的装置(500),包括风力涡轮机叶片。 装置(500)包括测试平台或基座(402)。 提供了用于保持或支撑细长测试制品(404)的基部(406)的刀片支撑件(410),并且刀片支撑件(410)以至少两个自由度枢转地安装在测试平台(402)上 的运动相对于测试平台(402)。 励磁输入组件(540)与叶片支撑件(410)互连并且包括用于同时向叶片支撑件(410)施加力或负载的第一和第二致动器(444,446,541)。 致动器力沿第一和第二横向方向循环地施加。 测试物品(404)通过在两个横向(505,507)上振荡来响应其底座(406)的振动。
    • 7. 发明申请
    • CHARGE PUMP FOR BUS-POWERED DEVICE
    • 总线供电装置的充电泵
    • US20080238198A1
    • 2008-10-02
    • US12138241
    • 2008-06-12
    • Thomas Leonard ReynoldsJay Johnson
    • Thomas Leonard ReynoldsJay Johnson
    • H02J1/00
    • H02M3/155H02M2001/007Y10T307/438Y10T307/625
    • A charge pump can be used with a bus-powered device connected to a bus. The charge pump is formed of a power connection from the bus carrying a DC power signal constrained to not exceed a given current limit and a given voltage limit, a DC-to-DC step-down voltage converter, a capacitor, and a DC-to-DC step-up voltage converter. The step-down converter has an input connected to the power connection and produces an intermediate signal having a voltage the same or less than the voltage of the power signal. The capacitor is connected to the output of the step-down converter. The step-up converter has an input connected to the output of the step-down converter and to the capacitor, and produces a final output signal having a voltage greater than the given voltage limit. The output of the step-up converter is connected to and provides DC power to the device.
    • 电荷泵可以连接到总线上的总线供电设备。 电荷泵由来自承载受限于不超过给定电流限制和给定电压限制的DC电力信号的总线的电源连接,DC-DC降压变换器,电容器和DC- 直流升压电压转换器。 降压转换器具有连接到电源连接的输入,并产生具有与功率信号的电压相同或小于的电压的中间信号。 电容器连接到降压转换器的输出端。 升压转换器具有连接到降压转换器和电容器的输出的输入,并且产生具有大于给定电压极限的电压的最终输出信号。 升压转换器的输出连接到器件并提供直流电源。