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Designing Business Jet Aircraft Engines for Increased Service Life
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English
Abstract
Techniques for increasing the life of small jet engine components have been developed. Turbine nozzles have been improved by introducing localized cooling, and by changes in mechanical design. In the bearing area, life has been increased by reduction of axial thrust and vibratory loads, and the total bearing-lubrication system has been improved by changes in sump venting and carbon seal cooling. Rotor vibration problems have been decreased by changes in design assembly and techniques and bearing supports; and the results of vibration on connecting components have been controlled by study and treatment on a system basis. Integration of numerical computation with test results and field experience is presented as a basis for rational life predictions of rotor parts.
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Citation
Garry, F., "Designing Business Jet Aircraft Engines for Increased Service Life," SAE Technical Paper 670234, 1967, https://doi.org/10.4271/670234.Also In
Number:V76-A; Published:1974-12-01
References
- Danforth C. E., “Designing to Avoid Fatigue in Long Life Engines.” SAE Transactions, Vol. 75 (1967), paper 663011.
- Rowe B. H., “The Design and Development of the CJ610 Turbojet and the CF700 Turbofan Engines for Use in Business Jet Aircraft,” Paper 650381, presented at the SAE Business Aircraft Conference, May 1965.
- Tavernelli J. F. and Coffin, L. F. Jr., “A Compilation and Interpretation of Cyclic Strain Fatigue Tests on Metals,” ASM Transaction, Vol. 51, 1959.
- Manson S. S., “Fatigue: A Complex Subject - Some Simple Approximations.” Proceedings of the Society of Experimental Stress Analysis, Vol. XXII, No. 2, 1965.
- Wile G. G., “Materials Considerations for Long Life Jet Engines.” Paper 660057, presented at SAE Automotive Engineering Congress, Detroit, January 1966.
- Burggraff F. and Houchens W., “Air Cooling of Hot Turbine Parts,” Paper 660054, presented at SAE Automotive Engineering Conference, Detroit, January 1966.
- Vogel W. H., Spaeth, C. E. et. al., “Thermal Fatigue Analysis Applied to Turbine Airfoils,” ASME Paper 65-GEP-17, March 1965.
- Hare A. and Malley H., “Cooling Modern Areo Engine Turbine Blades and Vanes,” SAE Transactions, Vol. 75 (1967), paper 660053.
- Sevcik J. F., “System Vibration and Static Analysis,” ASME Paper 63-AHGT-57 presented at ASME Aviation and Space Hydraulic and Gas turbine Conference, Los Angeles, March 1963.