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    • 1. 发明申请
    • BASE EXCITATION TESTING SYSTEM USING SPRING ELEMENTS TO PIVOTALLY MOUNT WIND TURBINE BLADES
    • 基础激振试验系统使用弹簧元件调节风力涡轮叶片
    • WO2009135136A3
    • 2010-02-04
    • PCT/US2009042537
    • 2009-05-01
    • ALLIANCE SUSTAINABLE ENERGYCOTRELL JASONHUGHES SCOTTBUTTERFIELD SANDYLAMBERT SCOTT
    • COTRELL JASONHUGHES SCOTTBUTTERFIELD SANDYLAMBERT SCOTT
    • G01M7/02F03D11/00G01N3/02
    • F03D11/0091F03D13/22F03D17/00F05B2250/42F05B2260/83G01M7/025G01M7/027G01M7/06G01N3/02G01N3/32G01N2033/0083G01N2203/0035G01N2203/0073
    • A system (1100) for fatigue testing wind turbine blades (1102) through forced or resonant excitation of the base (1104) of a blade (1102). The system (1100) includes a test stand (1112) and a restoring spring assembly (1120) mounted on the test stand (1112). The restoring spring assembly (1120) includes a primary spring element (1124) that extends outward from the test stand (1112) to a blade mounting plate (1130) configured to receive a base (1104) of blade (1102). During fatigue testing, a supported base (1104) of a blade (1102) may be pivotally mounted to the test stand (1112) via the restoring spring assembly (1120). The system (1100) may include an excitation input assembly (1140) that is interconnected with the blade mounting plate (1130) to selectively apply flapwise, edgewise, and/or pitch excitation forces. The restoring spring assembly (1120) may include at least one tuning spring member (1127) positioned adjacent to the primary spring element (1124) used to tune the spring constant or stiffness of the primary spring element (1124) in one of the excitation directions.
    • 一种用于通过叶片(1102)的基座(1104)的强制或共振激励来疲劳测试风力涡轮机叶片(1102)的系统(1100)。 系统(1100)包括安装在测试台(1112)上的测试台(1112)和恢复弹簧组件(1120)。 复原弹簧组件(1120)包括从测试台(1112)向外延伸到构造成接收叶片(1102)的基部(1104)的叶片安装板(1130)的主弹簧元件(1124)。 在疲劳测试期间,刀片(1102)的支撑基座(1104)可以经由复位弹簧组件(1120)枢转地安装到测试台(1112)。 系统(1100)可以包括与叶片安装板(1130)互连的激励输入组件(1140),以选择性地施加翼形,沿边和/或俯仰激励力。 恢复弹簧组件(1120)可以包括至少一个调节弹簧构件(1127),其邻近主弹簧元件(1124)定位,用于调节主弹簧元件(1124)的一个激励方向上的弹簧常数或刚度 。