2 research outputs found
Analysis of pressure stabilizer elliptic chambers on the deformed state by numerical method
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
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΡΠΎΠΏΡΠΈΠΊΠΎΡΠ½ΠΎΠ²Π΅Π½ΠΈΡ ΠΏΠΎΠ²Π΅ΡΡ Π½ΠΎΡΡΠ΅ΠΉ ΠΊΠ°ΡΠ΅Π½ΠΈΡ Π½Π° ΠΊΠΎΠ½ΡΠ°ΠΊΡΠ½ΡΠ΅ Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΡ Π² ΡΠ°ΡΠΈΠΊΠΎΠ²ΡΡ ΡΠ°Π΄ΠΈΠ°Π»ΡΠ½ΡΡ ΠΏΠΎΠ΄ΡΠΈΠΏΠ½ΠΈΠΊΠ°Ρ
The study is devoted to the determination of the coefficientsof the degree of contact of rolling surfaces, considering the tolerance field of rolling bodies, as well as the influence of the coefficients of the degreeof contact on the maximum contact stresses in ball radial bearings. A method has been developed for determining the maximum value of the coefficient of the degree of contact of rolling surfaces of ball radial bearings, taking into account the tolerance field of rolling bodies. It is established thatthe coefficient of the degree of contact of the rolling surfaces for each bearing size with a certain radius of the raceways is located in a range that depends on the limiting dimensions of the rolling elements. It is shown that the coef-ficient of the degree of contact of the rolling elements with the tracks ofthe outer ring, with the same auxiliary value, considering the sum and difference of the curvatures of the rolling surfaces, is greater than the inner one. Therefore, in order to reduce contact stresses on the outer ring ofthe bearing, the radius of its raceway can be made smaller than the inner one. A method has been developed for calculating the maximum contact stresses on the raceways of radial ball bearings, taking into accountthe coefficient of the degree of contact of rolling surfaces and the tolerance field of rolling bodies, which allows calculating contact stresses for radial ball bearings of any size at any coefficients of the degree of contact of rolling surfaces.ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΠΎΡΠ²ΡΡΠ΅Π½ΠΎ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠΎΠ² ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΡΠΎΠΏΡΠΈΠΊΠΎΡΠ½ΠΎΠ²Π΅Π½ΠΈΡ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ ΠΊΠ°ΡΠ΅Π½ΠΈΡ Ρ ΡΡΠ΅ΡΠΎΠΌ ΠΏΠΎΠ»Ρ Π΄ΠΎΠΏΡΡΠΊΠ° ΡΠ΅Π» ΠΊΠ°ΡΠ΅Π½ΠΈΡ, Π° ΡΠ°ΠΊΠΆΠ΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠΎΠ² ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΡΠΎΠΏΡΠΈΠΊΠΎΡΠ½ΠΎΠ²Π΅Π½ΠΈΡ Π½Π° ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΡΠ΅ ΠΊΠΎΠ½ΡΠ°ΠΊΡΠ½ΡΠ΅ Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΡ Π² ΡΠ°ΡΠΈΠΊΠΎΠ²ΡΡ
ΡΠ°Π΄ΠΈΠ°Π»ΡΠ½ΡΡ
ΠΏΠΎΠ΄ΡΠΈΠΏΠ½ΠΈΠΊΠ°Ρ
. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π° ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠΉ Π²Π΅Π»ΠΈΡΠΈΠ½Ρ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠ° ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΡΠΎΠΏΡΠΈΠΊΠΎΡΠ½ΠΎΠ²Π΅Π½ΠΈΡ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ ΠΊΠ°ΡΠ΅Π½ΠΈΡ ΡΠ°ΡΠΈΠΊΠΎΠ²ΡΡ
ΡΠ°Π΄ΠΈΠ°Π»ΡΠ½ΡΡ
ΠΏΠΎΠ΄ΡΠΈΠΏΠ½ΠΈΠΊΠΎΠ² Ρ ΡΡΠ΅ΡΠΎΠΌ ΠΏΠΎΠ»Ρ Π΄ΠΎΠΏΡΡΠΊΠ° ΡΠ΅Π» ΠΊΠ°ΡΠ΅Π½ΠΈΡ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½Ρ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΡΠΎΠΏΡΠΈΠΊΠΎΡΠ½ΠΎΠ²Π΅Π½ΠΈΡ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ ΠΊΠ°ΡΠ΅Π½ΠΈΡ Π΄Π»Ρ ΠΊΠ°ΠΆΠ΄ΠΎΠ³ΠΎ ΡΠΈΠΏΠΎΡΠ°Π·ΠΌΠ΅ΡΠ° ΠΏΠΎΠ΄ΡΠΈΠΏΠ½ΠΈΠΊΠ° Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½ΡΠΌ ΡΠ°Π΄ΠΈΡΡΠΎΠΌ Π΄ΠΎΡΠΎΠΆΠ΅ΠΊ ΠΊΠ°ΡΠ΅Π½ΠΈΡ ΡΠ°ΡΠΏΠΎΠ»Π°Π³Π°Π΅ΡΡΡ Π² Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅, ΠΊΠΎΡΠΎΡΡΠΉ Π·Π°Π²ΠΈΡΠΈΡ ΠΎΡ ΠΏΡΠ΅Π΄Π΅Π»ΡΠ½ΡΡ
ΡΠ°Π·ΠΌΠ΅ΡΠΎΠ² ΡΠ΅Π» ΠΊΠ°ΡΠ΅Π½ΠΈΡ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½Ρ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΡΠΎΠΏΡΠΈΠΊΠΎΡΠ½ΠΎΠ²Π΅Π½ΠΈΡ ΡΠ΅Π» ΠΊΠ°ΡΠ΅Π½ΠΈΡ Ρ Π΄ΠΎΡΠΎΠΆΠΊΠ°ΠΌΠΈ Π½Π°ΡΡΠΆΠ½ΠΎΠ³ΠΎ ΠΊΠΎΠ»ΡΡΠ° ΠΏΡΠΈ ΠΎΠ΄ΠΈΠ½Π°ΠΊΠΎΠ²ΠΎΠΉ Π²ΡΠΏΠΎΠΌΠΎΠ³Π°ΡΠ΅Π»ΡΠ½ΠΎΠΉ Π²Π΅Π»ΠΈΡΠΈΠ½Π΅, ΡΡΠΈΡΡΠ²Π°ΡΡΠ΅ΠΉ ΡΡΠΌΠΌΡ ΠΈ ΡΠ°Π·Π½ΠΎΡΡΡ ΠΊΡΠΈΠ²ΠΈΠ·Π½ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ ΠΊΠ°ΡΠ΅Π½ΠΈΡ, Π±ΠΎΠ»ΡΡΠ΅, ΡΠ΅ΠΌ Π²Π½ΡΡΡΠ΅Π½Π½Π΅Π³ΠΎ. ΠΠΎΡΡΠΎΠΌΡ Π΄Π»Ρ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΡ ΠΊΠΎΠ½ΡΠ°ΠΊΡΠ½ΡΡ
Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΠΉ Π½Π° Π½Π°ΡΡΠΆΠ½ΠΎΠΌ ΠΊΠΎΠ»ΡΡΠ΅ ΠΏΠΎΠ΄ΡΠΈΠΏΠ½ΠΈΠΊΠ° ΡΠ°Π΄ΠΈΡΡ Π΅Π³ΠΎ Π΄ΠΎΡΠΎΠΆΠΊΠΈ ΠΊΠ°ΡΠ΅Π½ΠΈΡ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ ΠΌΠ΅Π½ΡΡΠ΅, ΡΠ΅ΠΌ Π½Π° Π²Π½ΡΡΡΠ΅Π½Π½Π΅ΠΌ. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π° ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΡΠ°ΡΡΠ΅ΡΠ° ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΡΡ
ΠΊΠΎΠ½ΡΠ°ΠΊΡΠ½ΡΡ
Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΠΉ Π½Π° Π΄ΠΎΡΠΎΠΆΠΊΠ°Ρ
ΠΊΠ°ΡΠ΅Π½ΠΈΡ ΡΠ°ΡΠΈΠΊΠΎΠ²ΡΡ
ΡΠ°Π΄ΠΈΠ°Π»ΡΠ½ΡΡ
ΠΏΠΎΠ΄ΡΠΈΠΏΠ½ΠΈΠΊΠΎΠ² Ρ ΡΡΠ΅ΡΠΎΠΌ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠ° ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΡΠΎΠΏΡΠΈΠΊΠΎΡΠ½ΠΎΠ²Π΅Π½ΠΈΡ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ ΠΊΠ°ΡΠ΅Π½ΠΈΡ ΠΈ ΠΏΠΎΠ»Ρ Π΄ΠΎΠΏΡΡΠΊΠ° ΡΠ΅Π» ΠΊΠ°ΡΠ΅Π½ΠΈΡ, ΠΊΠΎΡΠΎΡΠ°Ρ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ Π²ΡΠΏΠΎΠ»Π½ΡΡΡ ΡΠ°ΡΡΠ΅Ρ ΠΊΠΎΠ½ΡΠ°ΠΊΡΠ½ΡΡ
Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΠΉ Π΄Π»Ρ ΡΠ°Π΄ΠΈΠ°Π»ΡΠ½ΡΡ
ΡΠ°ΡΠΈΠΊΠΎΠ²ΡΡ
ΠΏΠΎΠ΄ΡΠΈΠΏΠ½ΠΈΠΊΠΎΠ² Π»ΡΠ±ΠΎΠ³ΠΎ ΡΠΈΠΏΠΎΡΠ°Π·ΠΌΠ΅ΡΠ° ΠΏΡΠΈ Π»ΡΠ±ΡΡ
ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠ°Ρ
ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΡΠΎΠΏΡΠΈΠΊΠΎΡΠ½ΠΎΠ²Π΅Π½ΠΈΡ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ ΠΊΠ°ΡΠ΅Π½ΠΈΡ