NASA Technical Reports Server (NTRS) 19930091277: Inertia factors of ellipsoids for use in airship design
Book details
- Title
- NASA Technical Reports Server (NTRS) 19930091277: Inertia factors of ellipsoids for use in airship design
- Author
- Horace Lamb
- Publication year listed
- 1926
- Format
- Public domain eBook
- Reading access
- Free online reader; no registration required
- Source record
- View on Archive.org
About this book
NASA Technical Reports Server (NTRS) 19930091277: Inertia factors of ellipsoids for use in airship design
Author: NASA Technical Reports Server (NTRS)
Year: 1926
This report is based on a study made by the writer as a member of the Special Committee on Design of Army Semirigid Airship RS-1 appointed by the National Advisory Committee for Aeronautics. The increasing interest in airships has made the problem of the potential flow of a fluid about an ellipsoid of considerable practical importance. In 1833 George Green, in discussing the effect of the surrounding medium upon the period of a pendulum, derived three elliptic integrals, in terms of which practically all the characteristics of this type of motion can be expressed. The theory of this type of motion is very fully given by Horace Lamb in his "Hydrodynamics," and applications to the theory of airships by many other writers. Tables of the inertia coefficients derived from these integrals are available for the most important special cases. These tables are adequate for most purposes, but occasionally it is desirable to know the values of these integrals in other cases where tabulated values are not available. For this reason it seems worth while to assemble a collection of formulae which would enable them to be computed directly from standard tables of elliptic integrals, circular and hy
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