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Über die Flügelschwingungen eines Hub‐ oder Tragschraubers beim Vorwärtsflug by Wilhelm Müller is a Engineering article available to read on EtoBox.

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From (3.5) and (3.6), and, since R1 =# R,, the equalities cannot hold simultaneously. This contradicts (3.4), so we must have 6, = 2, . We have assumed here that Rl and R, are specified, and have shown that there exists a unique A, or, equivalently, unique dimensions of the deformed solid, for which the boundaries of the deformed solid are free. One can also establish the converse, i. e., that the dimensions of the deformed solid uniquely determine those of the undeformed solid, when the surface tractions vanish. This, of course, presumes that the deformation is of the type considered here-If, for example, we are given that the deformed solid is a spherical shell of specified dimensions and that its surfaces are free, and if no further information is supplied, we cannot determine whether the interior is strained, as in the solution presented here, or unstrained. One sometimes hears the opinion expressed that the uniqueness% theorems of linear elasticity should carry over to nonlinear theories, provided the applied forces are sufficiently small, such opinions being motivated by the results of numerous stability investigations in classical theories of plates and shells and in the the

Who reads Über die Flügelschwingungen eines Hub‐ oder Tragschraubers beim Vorwärtsflug?

Author

Wilhelm Müller

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 0044-2267)

Published

1955

Language

DE

Field

Engineering (Physical Sciences)