ANALYTICAL AND AERODYNAMIC STUDIES OF ROTATING-BOMBLET MOTIONS.
Abstract
Theoretical methods are developed for investigation of the flight characteristics of quasi-axi-symmetric autorotating glide-type bomblets. In addition to the glide and end-on flight modes, two circular motion modes are identified and investigated. Linear equations of motion are described for the glide mode and the solutions and stability criteria are discussed, including the relationship between mass asymmetry and the angular turning motion. Two-dimensional trajectory equations are derived and solved numerically for comparison with flight data and for evaluation of the transient flight path following launch. Six-degrees-of-freedom equations are presented in a form suitable for solution by a large digital computer. Available wind tunnel results for rotating bomblets are reviewed and pertinent data pertaining to performance, motion, and stability are correlated. Both theoretical and empirical methods for predicting spin performance are derived. Several new techniques for dynamic model testing are suggested. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 31, 1965
- Accession Number
- AD0374500
Entities
People
- James E. Brunk