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Remote-Controlled Rotorcraft Blade Vibration and Modal Analysis at Low Frequencies.
| 题名： | Remote-Controlled Rotorcraft Blade Vibration and Modal Analysis at Low Frequencies. |
| 作者： | NULL |
| 关键词： | Blade, Vibration analysis, Modal analysis, Remote-controlled helicopter, Remote-controlled rotorcraft, HUMS for rotorcraft |
| 摘要： | Health and usage monitoring systems (HUMSs) collect sensor data from vehicle mechanical systems, subsystems, and components to address issues related to safety, maintenance, and reliability of vehicles. The US Army encourages open HUMS architectures. A typical HUMS box collects data during flight and stores the data for further analysis to determine the current state, reliability, and safety of the vehicle. This HUMS study collects sensor data on a blade removed from a remotecontrolled rotorcraft as a surrogate for a full-size rotorcraft blade. This report explains the outcome of the study and details how HUMs data can be collected on rotorcraft blades. This report will also demonstrate that accelerometers can be used to ascertain the natural frequencies of these blades, such that vibratory testing can be controlled and used to ultimately determine if the blade damage, wear, age, etc. has a measurable effect on frequency response. |
| 报告类型： | 科技报告 |
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