APPROACHES TO DETERMINE AND EVALUATE THE STABILITY OF PROPULSION SYSTEMS
Abstract
A major consideration in the current design and operation of air vehicles is the stability of the total propulsion system. The derivation of stability criteria involves many evaluations and determinations at the subcomponent level to ascertain stable operating regions and the performance coefficients that are associated with the elemental margins. Painstaking compilation of the performance and stability margin for the key flight points of operation can thus be derived and a numerical value assessed with respect to stability margin. These data, for the most part, are dependent upon empirical coefficients drawn from previous weapon system developments. As such, a major effort is warranted to define alternative approaches to the problems of stability margin assessment that will provide a likely improvement in performance for the system. Development of the capability for improved performance and defined stability margin is directly dependent on an accurately determined interface between an engine and the associated airframe. Such a determination can be achieved only if there is expert liaison between and complete cooperation by the engine and airframe development companies. The interface between such companies must be strongly developed and is extremely critical in time-phased relationships between the engine and airframe development companies.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1968
- Accession Number
- AD0832170
Entities
People
- R. C. Tear
Organizations
- Air Force Research Laboratory