6 research outputs found
Geometry, static, vibration and bucking analysis and applications to thin elliptic paraboloid shells
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 surfaceβs 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 twodimensional 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. Β© Krivoshapko and Gbaguidi-Aisse
Π Π°ΡΡΠ΅Ρ ΡΠ»Π»ΠΈΠΏΡΠΈΡΠ΅ΡΠΊΠΈΡ ΡΠΏΡΡΠ³ΠΈΡ ΠΊΠ°ΠΌΠ΅Ρ ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΎΡΠ° Π΄Π°Π²Π»Π΅Π½ΠΈΡ ΠΏΠΎ Π΄Π΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΌΡ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΡΠΈΡΠ»Π΅Π½Π½ΡΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ
The question of pressure and flow rate stabilization is particularly relevant to short pipelines systems, which have high requirements for flow rate consistency of the working fluid. At medium and high pressures (up to 100 atmospheres and higher) the pressure stabilizer with elliptical elastic chambers provides conditions for normal operation of the corresponding equipment. For proper design of the stabilizer, especially deciding question of the liquid volume which the stabilizer can accommodate, it is necessary to carry out the calculation of the elliptical shell in the deformed state. The article provides the calculation of the elliptical shell in the deformed state by step by step loading method and checking the strength conditions at each step of loading. One of the main questions of the study is the question of what maximum load can withstand elliptical chambers. In this paper, we investigate the dependence of the maximum pressure at which the unit operates in the elastic area of deformation on the of the elliptical pipe wall thickness. If harmful oscillating discharge is known we should know the liquid volume which the camera can take. The dependence of the cross-sectional area increase coefficient on the thickness of the pipe wall is built. The article discusses some questions of pressure stabilizer designing.ΠΠΎΠΏΡΠΎΡ ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΈΠΈ Π΄Π°Π²Π»Π΅Π½ΠΈΡ ΠΈ ΡΠ°ΡΡ
ΠΎΠ΄Π° ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎ Π°ΠΊΡΡΠ°Π»Π΅Π½ Π² ΡΠΈΡΡΠ΅ΠΌΠ°Ρ
ΠΊΠΎΡΠΎΡΠΊΠΈΡ
ΡΡΡΠ±ΠΎΠΏΡΠΎΠ²ΠΎΠ΄ΠΎΠ², Π³Π΄Π΅ ΠΏΡΠ΅Π΄ΡΡΠ²Π»ΡΡΡΡΡ ΠΏΠΎΠ²ΡΡΠ΅Π½Π½ΡΠ΅ ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΡ ΠΊ ΡΠ°Π²Π½ΠΎΠΌΠ΅ΡΠ½ΠΎΡΡΠΈ ΠΏΠΎΠ΄Π°ΡΠΈ ΡΠ°Π±ΠΎΡΠ΅ΠΉ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ. Π ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΡΡΠ΅Π΄Π½ΠΈΡ
ΠΈ Π²ΡΡΠΎΠΊΠΈΡ
Π΄Π°Π²Π»Π΅Π½ΠΈΠΉ (Π΄ΠΎ 100 Π°ΡΠΌΠΎΡΡΠ΅Ρ ΠΈ Π²ΡΡΠ΅) ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΎΡ Π΄Π°Π²Π»Π΅Π½ΠΈΡ Ρ ΡΠ»Π»ΠΈΠΏΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΠΏΡΡΠ³ΠΈΠΌΠΈ ΠΊΠ°ΠΌΠ΅ΡΠ°ΠΌΠΈ ΡΠΎΠ·Π΄Π°Π΅Ρ ΡΡΠ»ΠΎΠ²ΠΈΡ Π΄Π»Ρ Π½ΠΎΡΠΌΠ°Π»ΡΠ½ΠΎΠΉ ΡΠ°Π±ΠΎΡΡ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠ΅Π³ΠΎ ΠΎΠ±ΠΎΡΡΠ΄ΠΎΠ²Π°Π½ΠΈΡ. ΠΠ»Ρ Π³ΡΠ°ΠΌΠΎΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΎΡΠ°, ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎ ΠΏΡΠΈ ΡΠ΅ΡΠ΅Π½ΠΈΠΈ Π²ΠΎΠΏΡΠΎΡΠ° ΠΎΠ± ΠΎΠ±ΡΠ΅ΠΌΠ΅ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ, ΠΊΠΎΡΠΎΡΡΠΉ ΡΠΏΠΎΡΠΎΠ±Π΅Π½ Π²ΠΌΠ΅ΡΡΠΈΡΡ ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΎΡ, Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΡΡ ΡΠ°ΡΡΠ΅Ρ ΡΠ»Π»ΠΈΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠΈ ΠΏΠΎ Π΄Π΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΌΡ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ. Π ΡΡΠ°ΡΡΠ΅ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡΡΡ ΡΠ°ΡΡΠ΅Ρ ΡΠ»Π»ΠΈΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠΈ ΠΏΠΎ Π΄Π΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΌΡ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΏΠΎΡΠ°Π³ΠΎΠ²ΠΎΠ³ΠΎ Π½Π°Π³ΡΡΠΆΠ΅Π½ΠΈΡ ΠΈ ΠΏΡΠΎΠ²Π΅ΡΠΊΠΈ ΡΡΠ»ΠΎΠ²ΠΈΠΉ ΠΏΡΠΎΡΠ½ΠΎΡΡΠΈ Π½Π° ΠΊΠ°ΠΆΠ΄ΠΎΠΌ ΡΠ°Π³Π΅ Π½Π°Π³ΡΡΠΆΠ΅Π½ΠΈΡ. ΠΠ΄Π½ΠΈΠΌ ΠΈΠ· ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
Π²ΠΎΠΏΡΠΎΡΠΎΠ² ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ²Π»ΡΠ΅ΡΡΡ Π²ΠΎΠΏΡΠΎΡ ΠΎ ΡΠΎΠΌ, ΠΊΠ°ΠΊΡΡ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΡΡ Π½Π°Π³ΡΡΠ·ΠΊΡ ΠΌΠΎΠ³ΡΡ Π²ΡΠ΄Π΅ΡΠΆΠΈΠ²Π°ΡΡ ΡΠ»Π»ΠΈΠΏΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΊΠ°ΠΌΠ΅ΡΡ. Π ΡΠ°Π±ΠΎΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΡΡΡ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΡ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠ³ΠΎ Π΄Π°Π²Π»Π΅Π½ΠΈΡ ΠΏΡΠΈ ΠΊΠΎΡΠΎΡΠΎΠΌ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΡ ΡΠ°Π±ΠΎΡΠ°Π΅Ρ Π² ΡΠΏΡΡΠ³ΠΎΠΉ ΠΎΠ±Π»Π°ΡΡΠΈ Π΄Π΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΎΡ ΡΠΎΠ»ΡΠΈΠ½Ρ ΡΡΠ΅Π½ΠΊΠΈ ΡΠ»Π»ΠΈΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΡΠ±Ρ. ΠΡΠ»ΠΈ Π² Ρ
ΠΎΠ΄Π΅ Π³ΠΈΠ΄ΡΠ°Π²Π»ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ°ΡΡΠ΅ΡΠΎΠ² ΡΡΠ°Π½ΠΎΠ²ΠΈΡΡΡ ΠΈΠ·Π²Π΅ΡΡΠ΅Π½ ΡΠ°ΡΡ
ΠΎΠ΄ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ, ΠΊΠΎΡΠΎΡΡΠΉ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ ΠΏΠΎΠ³Π°ΡΠΈΡΡ, ΡΠΎ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ Π·Π½Π°ΡΡ, ΠΊΠ°ΠΊΠΎΠΉ ΠΎΠ±ΡΠ΅ΠΌ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ ΡΠΏΠΎΡΠΎΠ±Π½Π° Β«ΠΏΡΠΈΠ½ΡΡΡΒ» ΠΊΠ°ΠΌΠ΅ΡΠ°. Π ΡΠ°Π±ΠΎΡΠ΅ ΠΏΡΠΈΠ²Π΅Π΄Π΅Π½Π° Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΡ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠ° ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΡ ΠΏΠ»ΠΎΡΠ°Π΄ΠΈ ΠΏΠΎΠΏΠ΅ΡΠ΅ΡΠ½ΠΎΠ³ΠΎ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΠΎΡ ΡΠΎΠ»ΡΠΈΠ½Ρ ΡΡΠ΅Π½ΠΊΠΈ ΡΡΡΠ±Ρ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ Π½Π΅ΠΊΠΎΡΠΎΡΡΠ΅ Π²ΠΎΠΏΡΠΎΡΡ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΎΡΠ° Π΄Π°Π²Π»Π΅Π½ΠΈΡ
Π Π°ΡΡΠ΅Ρ ΡΠ»Π»ΠΈΠΏΡΠΈΡΠ΅ΡΠΊΠΈΡ ΡΠΏΡΡΠ³ΠΈΡ ΠΊΠ°ΠΌΠ΅Ρ ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΎΡΠ° Π΄Π°Π²Π»Π΅Π½ΠΈΡ ΠΏΠΎ Π΄Π΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΌΡ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΡΠΈΡΠ»Π΅Π½Π½ΡΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ
The question of pressure and flow rate stabilization is particularly relevant to short pipelines systems, which have high requirements for flow rate consistency of the working fluid. At medium and high pressures (up to 100 atmospheres and higher) the pressure stabilizer with elliptical elastic chambers provides conditions for normal operation of the corresponding equipment. For proper design of the stabilizer, especially deciding question of the liquid volume which the stabilizer can accommodate, it is necessary to carry out the calculation of the elliptical shell in the deformed state. The article provides the calculation of the elliptical shell in the deformed state by step by step loading method and checking the strength conditions at each step of loading. One of the main questions of the study is the question of what maximum load can withstand elliptical chambers. In this paper, we investigate the dependence of the maximum pressure at which the unit operates in the elastic area of deformation on the of the elliptical pipe wall thickness. If harmful oscillating discharge is known we should know the liquid volume which the camera can take. The dependence of the cross-sectional area increase coefficient on the thickness of the pipe wall is built. The article discusses some questions of pressure stabilizer designing.ΠΠΎΠΏΡΠΎΡ ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΈΠΈ Π΄Π°Π²Π»Π΅Π½ΠΈΡ ΠΈ ΡΠ°ΡΡ
ΠΎΠ΄Π° ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎ Π°ΠΊΡΡΠ°Π»Π΅Π½ Π² ΡΠΈΡΡΠ΅ΠΌΠ°Ρ
ΠΊΠΎΡΠΎΡΠΊΠΈΡ
ΡΡΡΠ±ΠΎΠΏΡΠΎΠ²ΠΎΠ΄ΠΎΠ², Π³Π΄Π΅ ΠΏΡΠ΅Π΄ΡΡΠ²Π»ΡΡΡΡΡ ΠΏΠΎΠ²ΡΡΠ΅Π½Π½ΡΠ΅ ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΡ ΠΊ ΡΠ°Π²Π½ΠΎΠΌΠ΅ΡΠ½ΠΎΡΡΠΈ ΠΏΠΎΠ΄Π°ΡΠΈ ΡΠ°Π±ΠΎΡΠ΅ΠΉ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ. Π ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΡΡΠ΅Π΄Π½ΠΈΡ
ΠΈ Π²ΡΡΠΎΠΊΠΈΡ
Π΄Π°Π²Π»Π΅Π½ΠΈΠΉ (Π΄ΠΎ 100 Π°ΡΠΌΠΎΡΡΠ΅Ρ ΠΈ Π²ΡΡΠ΅) ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΎΡ Π΄Π°Π²Π»Π΅Π½ΠΈΡ Ρ ΡΠ»Π»ΠΈΠΏΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΠΏΡΡΠ³ΠΈΠΌΠΈ ΠΊΠ°ΠΌΠ΅ΡΠ°ΠΌΠΈ ΡΠΎΠ·Π΄Π°Π΅Ρ ΡΡΠ»ΠΎΠ²ΠΈΡ Π΄Π»Ρ Π½ΠΎΡΠΌΠ°Π»ΡΠ½ΠΎΠΉ ΡΠ°Π±ΠΎΡΡ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠ΅Π³ΠΎ ΠΎΠ±ΠΎΡΡΠ΄ΠΎΠ²Π°Π½ΠΈΡ. ΠΠ»Ρ Π³ΡΠ°ΠΌΠΎΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΎΡΠ°, ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎ ΠΏΡΠΈ ΡΠ΅ΡΠ΅Π½ΠΈΠΈ Π²ΠΎΠΏΡΠΎΡΠ° ΠΎΠ± ΠΎΠ±ΡΠ΅ΠΌΠ΅ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ, ΠΊΠΎΡΠΎΡΡΠΉ ΡΠΏΠΎΡΠΎΠ±Π΅Π½ Π²ΠΌΠ΅ΡΡΠΈΡΡ ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΎΡ, Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΡΡ ΡΠ°ΡΡΠ΅Ρ ΡΠ»Π»ΠΈΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠΈ ΠΏΠΎ Π΄Π΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΌΡ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ. Π ΡΡΠ°ΡΡΠ΅ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡΡΡ ΡΠ°ΡΡΠ΅Ρ ΡΠ»Π»ΠΈΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠΈ ΠΏΠΎ Π΄Π΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΌΡ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΏΠΎΡΠ°Π³ΠΎΠ²ΠΎΠ³ΠΎ Π½Π°Π³ΡΡΠΆΠ΅Π½ΠΈΡ ΠΈ ΠΏΡΠΎΠ²Π΅ΡΠΊΠΈ ΡΡΠ»ΠΎΠ²ΠΈΠΉ ΠΏΡΠΎΡΠ½ΠΎΡΡΠΈ Π½Π° ΠΊΠ°ΠΆΠ΄ΠΎΠΌ ΡΠ°Π³Π΅ Π½Π°Π³ΡΡΠΆΠ΅Π½ΠΈΡ. ΠΠ΄Π½ΠΈΠΌ ΠΈΠ· ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
Π²ΠΎΠΏΡΠΎΡΠΎΠ² ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ²Π»ΡΠ΅ΡΡΡ Π²ΠΎΠΏΡΠΎΡ ΠΎ ΡΠΎΠΌ, ΠΊΠ°ΠΊΡΡ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΡΡ Π½Π°Π³ΡΡΠ·ΠΊΡ ΠΌΠΎΠ³ΡΡ Π²ΡΠ΄Π΅ΡΠΆΠΈΠ²Π°ΡΡ ΡΠ»Π»ΠΈΠΏΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΊΠ°ΠΌΠ΅ΡΡ. Π ΡΠ°Π±ΠΎΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΡΡΡ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΡ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠ³ΠΎ Π΄Π°Π²Π»Π΅Π½ΠΈΡ ΠΏΡΠΈ ΠΊΠΎΡΠΎΡΠΎΠΌ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΡ ΡΠ°Π±ΠΎΡΠ°Π΅Ρ Π² ΡΠΏΡΡΠ³ΠΎΠΉ ΠΎΠ±Π»Π°ΡΡΠΈ Π΄Π΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΎΡ ΡΠΎΠ»ΡΠΈΠ½Ρ ΡΡΠ΅Π½ΠΊΠΈ ΡΠ»Π»ΠΈΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΡΠ±Ρ. ΠΡΠ»ΠΈ Π² Ρ
ΠΎΠ΄Π΅ Π³ΠΈΠ΄ΡΠ°Π²Π»ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ°ΡΡΠ΅ΡΠΎΠ² ΡΡΠ°Π½ΠΎΠ²ΠΈΡΡΡ ΠΈΠ·Π²Π΅ΡΡΠ΅Π½ ΡΠ°ΡΡ
ΠΎΠ΄ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ, ΠΊΠΎΡΠΎΡΡΠΉ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ ΠΏΠΎΠ³Π°ΡΠΈΡΡ, ΡΠΎ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ Π·Π½Π°ΡΡ, ΠΊΠ°ΠΊΠΎΠΉ ΠΎΠ±ΡΠ΅ΠΌ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ ΡΠΏΠΎΡΠΎΠ±Π½Π° Β«ΠΏΡΠΈΠ½ΡΡΡΒ» ΠΊΠ°ΠΌΠ΅ΡΠ°. Π ΡΠ°Π±ΠΎΡΠ΅ ΠΏΡΠΈΠ²Π΅Π΄Π΅Π½Π° Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΡ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠ° ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΡ ΠΏΠ»ΠΎΡΠ°Π΄ΠΈ ΠΏΠΎΠΏΠ΅ΡΠ΅ΡΠ½ΠΎΠ³ΠΎ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΠΎΡ ΡΠΎΠ»ΡΠΈΠ½Ρ ΡΡΠ΅Π½ΠΊΠΈ ΡΡΡΠ±Ρ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ Π½Π΅ΠΊΠΎΡΠΎΡΡΠ΅ Π²ΠΎΠΏΡΠΎΡΡ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΎΡΠ° Π΄Π°Π²Π»Π΅Π½ΠΈΡ
ΠΠΠΠ―ΠΠΠ ΠΠΠΠΠΠ’Π ΠΠ§ΠΠ‘ΠΠΠ₯ ΠΠ‘Π‘ΠΠΠΠΠΠΠΠΠ Π ΠΠΠΠΠ₯ Π’ΠΠΠΠ ΠΠΠΠΠ Π₯ΠΠΠ‘Π’ΠΠ ΠΠ Π‘ΠΠΠΠΠΠΠ ΠΠΠΠ«Π₯ Π Π£ΠΠΠΠΠΠ¬ΠΠ«Π₯ Π‘ΠΠΠ Π£ΠΠΠΠΠ
The aim of the paper is to illustrate using of analytical surfaces, i.e. surfaces, which can be given by vector, parametric or explicit equations, in real structures, i.e. in parametric architecture. Parametric architecture is a unique style in which such concepts as sculpture, mathematics, structural mechanics, and architecture are interconnected. Parametric design in contrast to other styles has a relationship with mathematics. This paper continues a series of works of the authors devoted to application of analytical surfaces in architecture and building, devoted to investigation of influence of researches on the geometry of surfaces on design of large-span shell structures and to application of interesting geometrical forms for unique erections. In the paper, a photo of only one erection having this form illustrates every analytical surface, which can be seen in forms of real erections. It turned out that only 42 of the 600 surfaces described in the literature were used in the World. For those who are interested in the mathematical side of design of surfaces, their computer modeling, or more detailed information about real structures in the form of the surfaces in question, a voluminous bibliography are given.Π¦Π΅Π»Ρ ΡΡΠ°ΡΡΠΈ - Π°Π½Π°Π»ΠΈΠ· ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ, ΡΠΎ Π΅ΡΡΡ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΌΠΎΠ³ΡΡ Π±ΡΡΡ Π·Π°Π΄Π°Π½Ρ Π²Π΅ΠΊΡΠΎΡΠ½ΡΠΌΠΈ, ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΈΠ»ΠΈ Π½Π΅ΡΠ²Π½ΡΠΌΠΈ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡΠΌΠΈ, Π² ΡΠ΅Π°Π»ΡΠ½ΡΡ
ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΡΡ
, ΡΠΎ Π΅ΡΡΡ Π² ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΠ΅. ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠ°Ρ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΠ° - ΡΡΠΎ ΡΠ½ΠΈΠΊΠ°Π»ΡΠ½ΡΠΉ ΡΡΠΈΠ»Ρ, ΠΊΠΎΡΠΎΡΡΠΉ ΠΎΠ±ΡΠ΅Π΄ΠΈΠ½ΡΠ΅Ρ ΡΠΊΡΠ»ΡΠΏΡΡΡΡ, ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΠΊΡ, ΡΡΡΠΎΠΈΡΠ΅Π»ΡΠ½ΡΡ ΠΌΠ΅Ρ
Π°Π½ΠΈΠΊΡ ΠΈ Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΡ. ΠΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ Π² ΠΎΡΠ»ΠΈΡΠΈΠ΅ ΠΎΡ Π΄ΡΡΠ³ΠΈΡ
ΡΡΠΈΠ»Π΅ΠΉ ΠΈΠΌΠ΅Π΅Ρ ΡΠ΅ΡΠ½ΡΡ ΡΠ²ΡΠ·Ρ Ρ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΠΊΠΎΠΉ. Π‘ΡΠ°ΡΡΡ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΡΠΎΠ΄ΠΎΠ»ΠΆΠ΅Π½ΠΈΠ΅ΠΌ ΡΠ΅ΡΠΈΠΈ ΡΠ°Π±ΠΎΡ Π°Π²ΡΠΎΡΠΎΠ², ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π½ΡΡ
ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ Π² Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΠ΅ ΠΈ ΡΡΡΠΎΠΈΡΠ΅Π»ΡΡΡΠ²Π΅, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΏΠΎ Π³Π΅ΠΎΠΌΠ΅ΡΡΠΈΠΈ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ Π½Π° ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ Π±ΠΎΠ»ΡΡΠ΅ΠΏΡΠΎΠ»Π΅ΡΠ½ΡΡ
ΡΡΡΡΠΊΡΡΡ ΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΈΠ½ΡΠ΅ΡΠ΅ΡΠ½ΡΡ
Π³Π΅ΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΎΡΠΌ Π΄Π»Ρ ΡΠ½ΠΈΠΊΠ°Π»ΡΠ½ΡΡ
ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΠΉ. Π ΡΡΠ°ΡΡΠ΅ ΠΊΠ°ΠΆΠ΄Π°Ρ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΡ, ΠΊΠΎΡΠΎΡΡΡ ΠΌΠΎΠΆΠ½ΠΎ ΡΠ²ΠΈΠ΄Π΅ΡΡ Π² ΡΠΎΡΠΌΠ°Ρ
ΡΠ΅Π°Π»ΡΠ½ΡΡ
ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΠΉ, ΠΈΠ»Π»ΡΡΡΡΠΈΡΡΠ΅ΡΡΡ ΡΠΎΡΠΎΠ³ΡΠ°ΡΠΈΠ΅ΠΉ ΡΠΎΠ»ΡΠΊΠΎ ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΡ, ΠΈΠΌΠ΅ΡΡΠ΅Π³ΠΎ ΡΡΡ ΡΠΎΡΠΌΡ. ΠΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΎ, ΡΡΠΎ ΡΠΎΠ»ΡΠΊΠΎ 42 ΠΈΠ· 600 ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ, ΠΎΠΏΠΈΡΠ°Π½Π½ΡΠ΅ Π² Π½Π°ΡΡΠ½ΠΎ-ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π»ΠΈΡΠ΅ΡΠ°ΡΡΡΠ΅, Π±ΡΠ»ΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ Π² ΠΌΠΈΡΠΎΠ²ΠΎΠΉ ΠΏΡΠ°ΠΊΡΠΈΠΊΠ΅. ΠΠ»Ρ ΡΠ΅Ρ
, ΠΊΡΠΎ ΠΈΠ½ΡΠ΅ΡΠ΅ΡΡΠ΅ΡΡΡ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΠΎΡΠΎΠ½ΠΎΠΉ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ, ΠΈΡ
ΠΊΠΎΠΌΠΏΡΡΡΠ΅ΡΠ½ΡΠΌ ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ, ΠΈΠ»ΠΈ Π±ΠΎΠ»Π΅Π΅ ΠΏΠΎΠ΄ΡΠΎΠ±Π½ΡΠΌΠΈ ΡΠ²Π΅Π΄Π΅Π½ΠΈΡΠΌΠΈ ΠΎ ΡΠ΅Π°Π»ΡΠ½ΡΡ
ΡΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΡΡ
Π² ΡΠΎΡΠΌΠ΅ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΠΌΡΡ
ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ ΠΏΡΠΈΠ²Π΅Π΄Π΅Π½Π° ΠΎΠ±ΡΠΈΡΠ½Π°Ρ Π±ΠΈΠ±Π»ΠΈΠΎΠ³ΡΠ°ΡΠΈΡ
Geometry, static, vibration and bucking analysis and applications to thin elliptic paraboloid shells
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 surfaceβs 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 twodimensional 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. Β© Krivoshapko and Gbaguidi-Aisse