Comparison of experimental stresses and deflections with those predicted by a strain energy method for an F8U-3 wing loaded in torsion
Holgren, Marvin A.
Comfort, Clayton L.
MetadataShow full item record
The stress level in the milled skin at the root of a tapered, multicell swept wing is predicted by means of a matrix-force method. The solution is achieved by minimizing the internal strain energy, and the results compared with experimental tests. A single loading, consisting of a nose-up couple, is applied to each tip rib. The loading is transferred from the tip rib to an idealized structure by means of simple torsion theory. The idealized structure represents the inboard one-half of each semi-span. Results indicate that an accurate solution of the stress distribution in the actual wing can be achieved provided that the root boundary conditions are preserved. An extension of the analysis is suggested in order to more closely define the maximum accuracy inherent in the particular matrix-force method of solution.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Spacecraft guidance strategies for proximity maneuvering and close approach with a tumbling object Boyarko, George A. (Monterey, California. Naval Postgraduate School, 2010-03);A six degree of freedom, 20-state model of two spacecraft rendezvous is developed, one of which was controlled and the other considered to be passively tumbling. Solutions that minimize a series of performance indices ...
Leipold, Frederick James (Monterey, California. Naval Postgraduate School, 1967-09);Finite difference approximations to the one-dimensional heat equation U[t] = U[xx] are used to introduce explicit and implicit difference equations. The convergence and stability of these equations is duscussed and these ...
Bleick, W.E. (American Mathematical Society, 1947-10);Eastlack has published a method for the solution of quadratic equations by means of a calculating machine. His process is extended here to the solution of cubic equations. In the ordinary manual operation of calculating ...