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Gear windage modeling progress - experimental validation status
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Handschuh, Robert F. Kunz, Rob |
| Copyright Year | 2008 |
| Description | In the Subsonics Rotary Wing (SRW) Project being funded for propulsion work at NASA Glenn Research Center, performance of the propulsion system is of high importance. In current rotorcraft drive systems many gearing components operate at high rotational speed (pitch line velocity > 24000 ft/ min). In our testing of high speed helical gear trains at NASA Glenn we have found that the work done on the air - oil mist within the gearbox can become a significant part of the power loss of the system. This loss mechanism is referred to as windage. The effort described in this presentation is to try to understand the variables that affect windage, develop a good experimental data base to validate, the analytical project being conducted at Penn State University by Dr. Rob Kunz under a NASA SRW NRA. The presentation provides an update to the status of these efforts. |
| File Size | 6982307 |
| Page Count | 29 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20090004555 |
| Archival Resource Key | ark:/13960/t0gv0kd81 |
| Language | English |
| Publisher Date | 2008-10-07 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Losses Oils High Speed Rotary Wing Aircraft Mechanical Drives Transmissions Machine Elements Data Bases Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
