Loading...
Please wait, while we are loading the content...
Similar Documents
Investigation of performance deterioration of the cf6/jt9d, high-bypass ratio turbofan engines
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Mehalic, C. M. Ziemianski, J. A. |
| Copyright Year | 1980 |
| Description | The aircraft energy efficiency program within NASA is developing technology required to improve the fuel efficiency of commercial subsonic transport aricraft. One segment of this program includes engine diagnostics which is directed toward determining the sources and causes of performance deterioration in the Pratt and Whitney Aircraft JT9D and General Electric CF6 high-bypass ratio turbofan engines and developing technology for minimizing the performance losses. Results of engine performance deterioration investigations based on historical data, special engine tests, and specific tests to define the influence of flight loads and component clearances on performance are presented. The results of analysis of several damage mechanisms that contribute to performance deterioration such as blade tip rubs, airfoil surface roughness and erosion, and thermal distortion are also included. The significance of these damage mechanisms on component and overall engine performance is discussed. |
| File Size | 4657173 |
| Page Count | 22 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800020831 |
| Archival Resource Key | ark:/13960/t10p5w032 |
| Language | English |
| Publisher Date | 1980-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Blade Tips Performance Tests Transport Aircraft Fuel Consumption Turbofan Engines Surface Roughness Engine Tests Aircraft Engines Damage Engine Parts Loads Forces Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
