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A Method of Calculating a Stability Boundary that Defines a Region of Satisfactory Period-damping Relationship of the Oscillatory Mode of Motion
Leonard Sternfield
Ordway B. Gates
出版
National Advisory Committee for Aeronautics
, 1949
URL
http://books.google.com.hk/books?id=O9awCtmw4Q4C&hl=&source=gbs_api
EBook
FULL_PUBLIC_DOMAIN
註釋
A method has been derived by which a boundary can be obtained that defines a region in which there exists a satisfactory relationship between the period and damping of the lateral oscillatory mode of motion, according to any given criterion for this relationship. In addition, a method is discussed by which curves representing a constant rate of spiral divergence may be constructed. The methods presented are applicable as well to the analysis of longitudinal stability. A method for evaluating the roots of a quartic equation is also discussed.
