公开(公告)号：US20160109319A1

公开(公告)日：2016-04-21

申请号：US14885644

申请日：2015-10-16

申请人： KOREA INSTITUTE OF MACHINERY & MATERIALS

发明人： Hakgu LEE ,  Byungsun HWANG ,  Jinbum MOON ,  Wookyoung LEE

IPC分类号： G01L25/00

CPC分类号： G01L25/00 ,  G01M5/0008 ,  G01M5/0016 ,  G01M5/0025 ,  G01M5/005 ,  G01M5/0083 ,  G01M5/0091 ,  G01M7/022 ,  Y02B10/30

摘要： A moment calibration method and apparatus are provided for a resonance fatigue test of a test article. In the moment calibration method, when a load applying unit of the apparatus applies a static load to the test article in a first direction so as to cause bending of the test article, a processor of the apparatus obtains a first measured value from a physical quantity measured by at least one measurement sensor attached to the test article. Also, when the load applying unit applies a static load to the test article in a second direction different from the first direction so as to cause bending of the test article, the processor obtains a second measured value from a physical quantity measured by the measurement sensor. Then the processor calculates a correlation between the first measured value, the second measured value, and moment values respectively calculated from the static loads applied in the first and second directions. By considering a dual-axis load state, the moment calibration method can obtain reliable calibration results exactly matching with a real fatigue test.

摘要翻译： 提供了用于测试物品的共振疲劳试验的瞬时校准方法和装置。 在校准方法中，当装置的负载施加单元沿第一方向向测试物施加静态载荷以引起测试物品的弯曲时，该设备的处理器从物理量获得第一测量值 由连接到测试物品的至少一个测量传感器测量。 此外，当负载施加单元在与第一方向不同的第二方向上向试验物施加静态载荷以引起试验物品的弯曲时，处理器从由测量传感器测量的物理量获得第二测量值 。 然后，处理器计算第一测量值，第二测量值和分别由在第一和第二方向施加的静态负载计算的力矩值之间的相关性。 通过考虑双轴负载状态，力矩校准方法可以获得与实际疲劳试验完全匹配的可靠校准结果。

公开(公告)号：US20160109324A1

公开(公告)日：2016-04-21

申请号：US14885731

申请日：2015-10-16

申请人： KOREA INSTITUTE OF MACHINERY & MATERIALS

发明人： Hakgu LEE ,  Byungsun HWANG ,  Wookyoung LEE ,  Mungyu JEONG

IPC分类号： G01M7/02 ,  G01M5/00

CPC分类号： G01L25/00 ,  G01M5/0008 ,  G01M5/0016 ,  G01M5/0025 ,  G01M5/005 ,  G01M5/0083 ,  G01M5/0091 ,  G01M7/022 ,  Y02B10/30

摘要： A multi-axis resonance fatigue test method and apparatus are provided by considering both stiffness coupling and inertia coupling in a resonance fatigue test that causes a complicated behavior and nonsymmetrical bending of a test article such as a wind turbine blade due to a coupling effect. In the method, a processor of the apparatus calculates a load value by considering a coupling between at least two axes of the test article. Also, the processor determines respective single-axis equivalent loads from the calculated load value by considering the coupling. This coupling may include at least one of a stiffness coupling and an inertia coupling.

摘要翻译： 通过考虑共振疲劳试验中的刚度耦合和惯性耦合两者来提供多轴共振疲劳试验方法和装置，其由于耦合效应而导致诸如风力涡轮机叶片的试验制品的复杂行为和非对称弯曲。 在该方法中，该装置的处理器通过考虑测试物品的至少两个轴之间的耦合来计算负载值。 此外，处理器通过考虑耦合从所计算的负载值确定相应的单轴等效负载。 该联接可以包括刚度耦合和惯性耦合中的至少一个。