Abstract

A large number of references dealing with the geometry, static, vibration and buckling analysis of elliptic paraboloid shells exist in the literature. This review work attempts to organize and summarize the extensive published literature on the basic achievements in investigations of thin-walled structures in the form of elliptic paraboloids. Possibilities of elliptic paraboloids with reference to machine-building and construction designs and to the apparatuses used in theoretical physics are briefly considered. The geometric part of the review is extended due to consideration of optimization of surface’s sizes, researches of representation of a surface on the plane and introducing bibliographic material on fractal geometry. Several existent analytical and numeral methods of calculation of the examined shells on durability give a possibility to choose one of the methods for the solution of new two-dimensional or three-dimensional tasks. Geometrical researches, approximation and bending of elliptic paraboloid surfaces, research of the stress-strain state of shells by analytical and numerical methods, natural and forced vibration of a shell, forming and setting of surfaces, application of shells in the form of elliptic paraboloids are the main problems which are considered in this review.

Highlights

  • Banerjee [64] proved that using of a stress function for analysis of elliptic paraboloid shells gives results not satisfying the fundamental equations for the equilibrium conditions

  • Apraksina [81] carried out a comparative research of a stress-strain state of an elliptic paraboloid shell with the help of a theory of shallow and non-shallow shells given in arbitrary curvilinear coordinates

  • The hyperbolic paraboloid is the most popular type of shells, due to its attractive form and simple structure [2], many researchers carry out investigations in the field of strength, vibration, stability, and application of elliptic paraboloid shells that are very attractive from an architectural point of view

Read more

Summary

INTRODUCTION

The application of new shapes in the architecture of spatial shell structures is the second motive of regaining of their former popularity. The reinforced concrete elliptic paraboloid shells, examined in this review, are used mainly in civil engineering because concrete is the most widely used material in large-span shell construction [12 - 15]. As an example of the application of elliptic paraboloids in mechanical engineering, one can present a modernized centrifugal mixer of powder materials declared in a patent No 51-167-99, 27.11.2003, RF. This mixer has inside a structure in the form of an elliptic paraboloid. In preparing of this review, the authors used materials published in scientific and technical journals and proceedings, and studied monographs, reports of scientific conferences, and other scientific and technical literatures mainly for the period 1970-2016

THE METHODS OF FORMING AND DEFINITIONS OF ELLIPTIC PARABOLOIDS
Additional Information on Possibility of Elliptic Paraboloid Surfaces
The Application of Elliptic Paraboloid Surface for Design of New Surfaces
Momentless Shell Theory of Analysis
The Shells on Rectangular Plane
A Point Support of Shell
Shells on Elliptic Plan
Grid Shell Models Simplifying an Analysis
A Method of Nets
A Finite Difference Method
Large Strain Analysis
EXPERIMENTAL STUDIES OF THE STRESS-STRAIN STATE OF ELLIPTIC PARABOLOID SHELLS
Analytical and Numerical Researching Methods
Experimental Studies of Elliptic Paraboloid Shells
Analytical Research Methods
Numerical Methods of Investigation
PROBLEMS OF THEORY OF ELASTICITY
EXAMPLES OF ERECTED AND DESIGNED SHELLS IN THE FORM OF ELLIPTIC PARABOLOIDS
Findings
CONCLUSION
Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.