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Embedded data acquisition tools for rotorcraft diagnostic sensors
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wagoner, Robert |
| Copyright Year | 2014 |
| Description | Rotorcraft drive trains must withstand enormous pressure while operating continuously in extreme temperature and vibration environments. Captive components, such as planetary and spiral bevel gears, see enormous strain but are not accessible to fixed instrumentation, such as a piezoelectric transducer. Thus, it is difficult to directly monitor components that are most susceptible to damage. This innovation is a self-contained data processing unit within a specialized fixture that installs directly inside the rotating pinion gear in the gearbox. From this location, it detects and transmits high-resolution prognostic data to a fixed transceiver. The sensor is based on microelectromechanical systems (MEMS) technology and uses innovative circuit designs to capture high-bandwidth data and transmit it wirelessly from inside an operational helicopter transmission. With Ridgetop's advanced MEMS-based sensor, researchers have, for the first time, been able to extract high-resolution acoustic signatures wirelessly from sensors within the transmission that would otherwise be muffled by background gear noises. Ridgetop's innovative instrument will help researchers perform dynamic analysis of gear interaction and develop improved designs for gear components. In addition, data from this instrument can be used to validate new algorithms that detect and predict faults based on external acoustic signatures, for prognostic purposes. The result of this work will be an improvement in safety, performance, and cost for future generations of rotating components. |
| File Size | 123753 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150005314 |
| Archival Resource Key | ark:/13960/t1mh2mm1k |
| Language | English |
| Publisher Date | 2014-11-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Microelectromechanical Systems Vibration Data Acquisition Spiral Bevel Gears Systems Health Monitoring Helicopter Propeller Drive Data Transmission Embedding Wireless Communication Algorithms Acoustic Properties Sensors Rotary Wing Aircraft Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
