7 research outputs found
ΠΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΎ Π΄Π΅ΡΠΎΡΠΌΠΎΠ²Π°Π½ΠΎΠ³ΠΎ ΡΡΠ°Π½Ρ, ΠΊΠΎΠ»ΠΈΠ²Π°Π½Ρ ΡΠ° ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½Π΅ ΠΏΡΠΎΠ΅ΠΊΡΡΠ²Π°Π½Π½Ρ Π½Π΅ΡΡΡΠΈΡ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΡΠΉ Π³ΡΠ΄ΡΠΎΡΡΡΠ±ΡΠ½
The thesis is devoted to solving scientific and technical problems, that consist in developing the models and methods for stress-strain state (SSS) investigation, determining the vibration characteristics and optimal design (OD) of hydro turbine covers, differed by the most comprehensive view of the design features and range of external influences in service.
Based on the finite element method, a mathematical model of the cover was developed. The analysis of the SSS of the design of the cover of the turning-paddle hydro turbines is carried out. The optimal design of the hydraulic turbine cover is based on the gradient method. Are detected zones of concentration of maximum stresses. Numerical studies of the natural frequencies of the oscillations of the original construction of the cover of the hydroturbine and the reduced-weight structure have been performed.ΠΠ° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΌΠ΅ΡΠΎΠ΄Π° ΠΊΠΎΠ½Π΅ΡΠ½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π° ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΌΠΎΠ΄Π΅Π»Ρ ΠΊΡΡΡΠΊΠΈ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½ Π°Π½Π°Π»ΠΈΠ· ΠΠΠ‘ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΈ ΠΊΡΡΡΠΊΠΈ ΠΏΠΎΠ²ΠΎΡΠΎΡΠ½ΠΎ-Π»ΠΎΠΏΠ°ΡΡΠ½ΠΎΠΉ Π³ΠΈΠ΄ΡΠΎΡΡΡΠ±ΠΈΠ½. ΠΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠ΅ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΠΊΡΡΡΠΊΠΈ Π³ΠΈΠ΄ΡΠΎΡΡΡΠ±ΠΈΠ½Ρ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π³ΡΠ°Π΄ΠΈΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π°. ΠΡΡΠ²Π»Π΅Π½ΠΎ Π·ΠΎΠ½Ρ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΡΡ
Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΠΉ. ΠΡΠΏΠΎΠ»Π½Π΅Π½Ρ ΡΠΈΡΠ»Π΅Π½Π½ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΡΡ
ΡΠ°ΡΡΠΎΡ ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ ΠΈΡΡ
ΠΎΠ΄Π½ΠΎΠΉ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΈ ΠΊΡΡΡΠΊΠΈ Π³ΠΈΠ΄ΡΠΎΡΡΡΠ±ΠΈΠ½Ρ ΠΈ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΈ Ρ ΡΠΌΠ΅Π½ΡΡΠ΅Π½Π½ΠΎΠΉ ΠΌΠ°ΡΡΠΎΠΉ.ΠΠ° ΠΎΡΠ½ΠΎΠ²Ρ ΠΌΠ΅ΡΠΎΠ΄Ρ ΡΠΊΡΠ½ΡΠ΅Π½Π½ΠΈΡ
Π΅Π»Π΅ΠΌΠ΅Π½ΡΡΠ² ΡΠΎΠ·ΡΠΎΠ±Π»Π΅Π½ΠΎ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ½Ρ ΠΌΠΎΠ΄Π΅Π»Ρ ΠΊΡΠΈΡΠΊΠΈ ΠΏΠΎΠ²ΠΎΡΠΎΡΠ½ΠΎ-Π»ΠΎΠΏΠ°ΡΠ΅Π²ΠΎΡ Π³ΡΠ΄ΡΠΎΡΡΡΠ±ΡΠ½ΠΈ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ Π°Π½Π°Π»ΡΠ· Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΎ Π΄Π΅ΡΠΎΡΠΌΠΎΠ²Π°Π½ΠΎΠ³ΠΎ ΡΡΠ°Π½Ρ (ΠΠΠ‘) Ρ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½Π΅ ΠΏΡΠΎΠ΅ΠΊΡΡΠ²Π°Π½Π½Ρ ΠΊΡΠΈΡΠΊΠΈ Π³ΡΠ΄ΡΠΎΡΡΡΠ±ΡΠ½ΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ Π³ΡΠ°Π΄ΡΡΠ½ΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Ρ. ΠΠΈΡΠ²Π»Π΅Π½ΠΎ Π·ΠΎΠ½ΠΈ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΡΡ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΠΈΡ
Π½Π°ΠΏΡΡΠΆΠ΅Π½Ρ. ΠΠΈΠΊΠΎΠ½Π°Π½ΠΎ ΡΠΈΡΠ΅Π»ΡΠ½Ρ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ Π²Π»Π°ΡΠ½ΠΈΡ
ΡΠ°ΡΡΠΎΡ ΠΊΠΎΠ»ΠΈΠ²Π°Π½Ρ Π²ΠΈΡ
ΡΠ΄Π½ΠΎΡ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΡΡ ΠΊΡΠΈΡΠΊΠΈ Π³ΡΠ΄ΡΠΎΡΡΡΠ±ΡΠ½ΠΈ Ρ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΡΡ Π·Ρ Π·ΠΌΠ΅Π½ΡΠ΅Π½ΠΎΡ ΠΌΠ°ΡΠΎΡ