Dynamic problems of shape optimal design for shallow curved plates |
| |
Authors: | NV Banichuk F Ragnedda M Serra |
| |
Affiliation: | Institute for Problems in Mechanics, Russian Academy of Sciences, 117526 Moscow, Russia?e-mail: banichuk@ipmnet.ru, RU Department of Mathematics, University of Cagliari, Italy and Department of Structural Engineering, University of Cagliari, Italy?e-mail: serrama@vaxca1.unica.it, IT
|
| |
Abstract: | The problem of optimal structural design of shallow thin-walled elements such as curved rectangular plates are formulated
and solved for dynamic conditions. The distribution of the initial curvature of shallow plates in a nonstrained state is taken
as the control function. Dynamic compliance is considered as the minimized performance functional. Optimality conditions are
derived for the distributed parameter system considered and applied for the construction of the analytical solution. The rigorous
analysis of extremum conditions and behavioural equations shows that the initial optimization problem is decomposed into several
problems of classical structural analysis, which can be successfully solved analytically. Some optimal designs obtained for
rectangular plates under stretching and bending, and a plate lying on an elastic foundation and subjected to lateral forces
are presented.
Received: November 27, 1998 |
| |
Keywords: | : curved plates shallow shells dynamic constraints shape optimization |
本文献已被 SpringerLink 等数据库收录! |
|