RELATIVE MERIT OF EXPERIMENTAL AND ANALYTICAL AERODYNAMIC INFLUENCE COEFFICIENTS FOR PREDICTING THE FLUTTER CONDITIONS OF GENERALLY DEFORMING WINGS.
Abstract
This report summarizes a 33-month study of the flutter characteristics of generally deforming wings. Both rigid-force and flutter models were constructed for a 6%-thick, 70 degree delta wing. The former were used to obtain steadystate aerodynamic influence coefficients which were, in turn, used to predict the flutter characteristics of the latter. The technique of model construction, the problems of measuring vibration modes, and the method of evaluating influence coefficients are described. Comparisons are made between the actual flutter conditions and those predicted with both experimental and analytical aerodynamic influence coefficients. In addition, explanations are given of the alternating increases and decreases of the flutter conditions with Mach number. Finally, the significance of various parameters is discussed and suggestions are made for future research. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1964
- Accession Number
- AD0354633
Entities
People
- Bernard Mazelsky
- Harry B. Amey Jr.
- Patrick J. Cunningham
Organizations
- Aerojet Rocketdyne Holdings