SAE AIR1289A PDF
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EVALUATION OF HELICOPTER TURBINE ENGINE LINEAR VIBRATION ENVIRONMENT
Description
This SAE Aerospace Information Report (AIR) outlines a recommended procedure for evaluation of the vibration environment to which the gas turbine engine powerplant is subjected in the helicopter installation. This analysis of engine vibration is normally demonstrated on a one-time basis upon initial certification, or after a major modification, of an engine/helicopter configuration.
This AIR deals with linear vibration as measured on the basic case structure of the engine and not, for example, torsional vibration in drive shafting or vibration of a component within the engine such as a compressor or turbine airfoil.
In summary, this AIR discusses the engine manufacturer’s “Installation Test Code” aspects of engine vibration and proposes an appropriate measurement method.
History
| AIR1289A | 2021-03-11 | Latest | Reaffirmed |
| AIR1289 | 1976-09-01 | Historical | Issued |
| ISSUING COMMITTEE | S-12 Powered Lift Propulsion Committee |
|---|---|
| DATE | 2021-03-11 |
| DOI | |
| ISCURRENT | Current |
| PAGE | 14 |
| PUBLISHER | SAE International |
| REVISED | REAFFIRMED |
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