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Two-speed gearbox dynamic simulation predictions and test validation
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | DeSmidt Sr., Hans Smith, Edward C. Lewicki, David G. Bauman, Steven W. |
| Copyright Year | 2010 |
| Description | Dynamic simulations and experimental validation tests were performed on a two-stage, two-speed gearbox as part of the drive system research activities of the NASA Fundamental Aeronautics Subsonics Rotary Wing Project. The gearbox was driven by two electromagnetic motors and had two electromagnetic, multi-disk clutches to control output speed. A dynamic model of the system was created which included a direct current electric motor with proportional-integral-derivative (PID) speed control, a two-speed gearbox with dual electromagnetically actuated clutches, and an eddy current dynamometer. A six degree-of-freedom model of the gearbox accounted for the system torsional dynamics and included gear, clutch, shaft, and load inertias as well as shaft flexibilities and a dry clutch stick-slip friction model. Experimental validation tests were performed on the gearbox in the NASA Glenn gear noise test facility. Gearbox output speed and torque as well as drive motor speed and current were compared to those from the analytical predictions. The experiments correlate very well with the predictions, thus validating the dynamic simulation methodologies. |
| File Size | 1132529 |
| Page Count | 20 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100024378 |
| Archival Resource Key | ark:/13960/t9q28wr80 |
| Language | English |
| Publisher Date | 2010-05-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Dynamic Tests Torque Gears Speed Control Clutches Transmissions Machine Elements Rotary Wings Shafts Machine Elements Loads Forces Electric Motors 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 |
