舵叶的动态载荷下的缺陷检测
舵叶的动态载荷下的缺陷检测
Dynamic loading on rudder blade
Detection and measurement of defects on a rudder blade by the SE-Sensor and dynamic loading.
通过动态加载在舵叶上进行测量的设置。
传感器通过吸盘直接刚性安装在舵上，即使在强风条件下也能实现户外测量，且具备高度灵活性。传感器的高品质干扰滤光片可在日光条件下进行测量。
Setup for measurement on a rudder by dynamic loading.
The direct rigid mounting of the sensor on the rudder by the suction cups allows outdoor measurement even at strong winds with high flexibility. The high quality interference filters of the sensor permits measurement under day light conditions.
A: 9,3 kHz B: 7,5 kHz C: 5,5 kHz
测量结果（时间平均值）显示了因材料刚度降低或不均匀导致的局部缺陷振动模式。即使选择大视野范围，仍可检测到微小缺陷。缺陷尺寸、类型及其深度（分层）共同决定了局部缺陷区域的正常模式（共振频率）。
Measurement results (time average) showing local vibration modes of defects due to reduced or inhomogeneous stiffness of the material. Even if a big field of view is selected, it is possible to detect small defects. Defect size and type as well as the depth of the defect (delamination) determine the normal modes (resonance frequency) of the local defect area.