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Performance deterioration based on simulated aerodynamic loads test, jt9d jet engine diagnostics program
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Stromberg, W. J. |
| Copyright Year | 1981 |
| Description | An engine was specially prepared with extensive instrumentation to monitor performance, case temperatures, and clearance changes. A special loading device was used to apply known loads on the engine by the use of cables placed around the flight inlet. These loads simulated the estimated aerodynamic pressure distributions that occur on the inlet in various segments of a typical airplane flight. Test results indicate that the engine lost 1.3 percent in take-off thrust specific fuel consumption (TSFC) during the course of the test effort. Permanent clearance changes due to the loads accounted for 1.1 percent; increase in low pressure compressor airfoil roughness and thermal distortion in the high pressure turbine accounted for 0.2 percent. Pretest predicted performance loss due to clearance changes was 0.9 percent in TSFC. Therefore, the agreement between measurement and prediction is considered to be excellent. |
| File Size | 32977225 |
| Page Count | 299 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19810014553 |
| Archival Resource Key | ark:/13960/t6q001g71 |
| Language | English |
| Publisher Date | 1981-02-09 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Propulsion System Performance Pressure Distribution Fuel Consumption Airfoils Performance Aerodynamic Loads Flight Simulation 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 |
