ПРОЕКТИРОВАНИЕ СЖАТОЙ СТУПЕНЧАТОЙ ПЛАСТИНКИ МИНИМАЛЬНОГО ВЕСА

МЕХАНИКА

Abstract

At present, aeronautics, aircraft engineering, mechanical engineering construction and many other spheres require such structures which at the given strength, hardness and other characteristics allow to maximally economize on materials. The problem of natural oscillation of the piecewise constant thickness rectangularplate prepared from the isotropic material, hinge supported on two opposite longitudinal sides and free, hinge or clamped supported on the end edges under the action of compressive forces uniformly distributed along the longitudinal edges of the plate is examined. The optimum values of the geometric parameters of the plate which minimize the weight construction for the given values of the compressive load and the lowest frequency of the natural oscillation are determined.