СВОБОДНЫЕ КОЛЕБАНИЯ ТРЕХСЛОЙНОЙ ПОЛОГОЙ ОБОЛОЧКИ, ПОДКРЕПЛЕННОЙ ПОПЕРЕЧНЫМИ РЕБРАМИ ЖЕСТКОСТИ
Journal Title: World Science - Year 2018, Vol 1, Issue 5
Abstract
The paper deals with the construction of a computational model and the development of an algorithm for investigating free oscillations of a three-layered shallow shell with a lightweight core supported by regular transverse stiffeners. The variational equation of transverse oscillations of a three-layer shell of a symmetrical structure reinforced by ribs is obtained, taking into account the action of longitudinal forces in the median planes of the outer layers and ribs. Kirchhoff-Love hypotheses are accepted for the outer bearing layers in the envelope, and for the filler, the linear law of tangential displacements in thickness is adopted. Transverse deformations of the aggregate were not taken into account. For the edges Bernoulli's hypotheses are accepted, and only the bending of the ribs in the vertical plane was taken into account. With the help of the limiting transition, conditions are obtained for the edge lines without considering the shear deformations in the edges. The values of the parameter of the first frequency of free oscillations of a three-layered shallow shell with a lightweight core supported by one and three transverse stiffeners are given.
Authors and Affiliations
Т. А. Емельянова, Н. Г. Сурьянинов, А. М. Чучмай
Keywords
Related Articles
- EP ID EP293821
- DOI -
- Views 131
- Downloads 0
ОСОБЕННОСТИ РАСЧЕТА ПАРАМЕТРОВ ПРОЦЕССА РЕЗКИ ТОНКОСТЕННЫХ ТРУБ НА ДЕТАЛИ И ПОЛУФАБРИКАТЫ
In this paper, an improved block diagram of a device for cutting a tubular billet by means of shear and torsion is considered. And also the calculation of the parameters of the process of cutting thin-walled pipes for pa...
ЕФЕКТИВНЕ ОЧИЩЕННЯ ВІДПРАЦЬОВАНОЇ ВОДИ НА АВТОМИЙКАХ МЕТАЛОКЕРАМІЧНИМИ ФІЛЬТРАМИ
On the basis of theoretical analysis and experimental studies, a porous cermet material based on steel and saponite scales for wastewater treatment in a car wash is proposed. Experimental studies have shown that the prop...
ОПЫТ ВНЕДРЕНИЯ МЕТОДА СТИМУЛИРОВАНИЯ ТВОРЧЕСКО-ЭМОЦИОНАЛЬНОГО ПРОЦЕССА У ГЛУХИХ ДЕТЕЙ
Interest is an important incentive to the expansion of horizons of the child, the acquisition of knowledge, enrichment of intelligence in General. The absence or poverty of knowledge make a child's life is meaningless. S...
ВИВЧЕННЯ ПОПИТУ ГІПОТЕНЗИВНИХ ПРЕПАРАТІВ В УМОВАХ АПТЕК ЛУГАНСЬКОЇ ОБЛАСТІ ЗА УРЯДОВОЮ ПРОГРАМОЮ «ДОСТУПНІ ЛІКИ»
Study of the demand for antihypertensive drugs by the government program «Affordable drugs» from visitors of the pharmacies in the Luhansk region has made it possible to establish the most popular antihypertensive drugs...
PREVENTION OF MONGOLIAN LAND DISPUTES
It is noted that “Right to submit a petition or a complaint to State bodies and officials. The State bodies and officials shall be obliged to respond to the petitions or complaints of citizens in conformity with law” in...