735 research outputs found
Electromechanical transducer for drying and processing of coal concentrates and sludges
Purpose. Determination of the effect of perforations in the hollow ferromagnetic rotor on dynamic characteristics of the electro-mechanical transducer.
Methods. Calculation of the dynamic characteristics of the electromechanical transducer with a hollow smooth and perforated rotor was performed using the theory of the general electrical machine, as well as the numerical solutions of differential equations by finite elementsβ method in three-dimensional statement.
Findings. The paper presents the research into the impact of rotor holes on the form of dynamic characteristics, which was carried out on the basis of comparing characteristics of the electromechanical transducer with those of smooth and perforated rotor. Introduction of rotor perforations brings about downward transposition of the mechanical dynamic characteristic parallel to itself. Starting the transducer with hollow ferromagnetic rotor, compared to starting the basic asynchronous motor, has a lower amplitude and smaller number of pulsations of electro-magnetic shock torque. We suggest calculating the dynamic characteristics of the electromechanical transducer with a hollow ferromagnetic rotor by way of combining the generalized theory of electrical machines with numerical solution of finite elementsβ method in three-dimensional statement. This approach was tested by juxtaposing the calculated and experimental data obtained for the physical model of the transducer with a hollow ferromagnetic rotor.
Originality. Dynamic characteristics of the electromechanical transducer with a hollow smooth and perforated rotor were obtained for starting with ventilation load.
Practical implications. The study results allow to expand the scientific theoretical basis of asynchronous machines with a ferromagnetic rotor and can be used to optimize the design and improve the efficiency of implementing electromechanical transducers with a hollow perforated rotor.Π¦Π΅Π»Ρ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΏΠ΅ΡΡΠΎΡΠ°ΡΠΈΠΉ ΠΏΠΎΠ»ΠΎΠ³ΠΎ ΡΠ΅ΡΡΠΎΠΌΠ°Π³Π½ΠΈΡΠ½ΠΎΠ³ΠΎ ΡΠΎΡΠΎΡΠ° Π½Π° Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΡΠ»Π΅ΠΊΡΡΠΎΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»Ρ.
ΠΠ΅ΡΠΎΠ΄ΠΈΠΊΠ°. Π Π°ΡΡΠ΅Ρ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ ΡΠ»Π΅ΠΊΡΡΠΎΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»Ρ Ρ ΠΏΠΎΠ»ΡΠΌ Π³Π»Π°Π΄ΠΊΠΈΠΌ ΠΈ ΠΏΠ΅ΡΡΠΎΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌ ΡΠΎΡΠΎΡΠΎΠΌ Π²ΡΠΏΠΎΠ»Π½ΡΠ»ΡΡ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΠ΅ΠΎΡΠΈΠΈ ΠΎΠ±ΠΎΠ±ΡΠ΅Π½Π½ΠΎΠΉ ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠ°ΡΠΈΠ½Ρ, Π° ΡΠ°ΠΊΠΆΠ΅ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΠΈΡΠ»Π΅Π½Π½ΠΎΠ³ΠΎ ΡΠ΅ΡΠ΅Π½ΠΈΡ Π΄ΠΈΡΡΠ΅ΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΡΡ
ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΉ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΊΠΎΠ½Π΅ΡΠ½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² Π² ΡΡΠ΅Ρ
ΠΌΠ΅ΡΠ½ΠΎΠΉ ΠΏΠΎΡΡΠ°Π½ΠΎΠ²ΠΊΠ΅.
Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΎΡΠ²Π΅ΡΡΡΠΈΠΉ ΡΠΎΡΠΎΡΠ° Π½Π° ΡΠΎΡΠΌΡ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ, ΠΊΠΎΡΠΎΡΠΎΠ΅ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡ Π½Π° Π±Π°Π·Π΅ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ ΡΠ»Π΅ΠΊΡΡΠΎΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»Ρ Ρ Π³Π»Π°Π΄ΠΊΠΈΠΌ ΠΈ ΠΏΠ΅ΡΡΠΎΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌ ΡΠΎΡΠΎΡΠΎΠΌ. ΠΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ ΠΏΠ΅ΡΡΠΎΡΠ°ΡΠΈΠΉ ΡΠΎΡΠΎΡΠ° ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΠΏΠ΅ΡΠ΅ΠΌΠ΅ΡΠ΅Π½ΠΈΡ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ Π²Π½ΠΈΠ· ΠΏΠ°ΡΠ°Π»Π»Π΅Π»ΡΠ½ΠΎ ΡΠ°ΠΌΠΎΠΉ ΡΠ΅Π±Π΅. ΠΡΡΠΊ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»Ρ Ρ ΠΏΠΎΠ»ΡΠΌ ΡΠ΅ΡΡΠΎΠΌΠ°Π³Π½ΠΈΡΠ½ΡΠΌ ΡΠΎΡΠΎΡΠΎΠΌ, Π² ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΈ Ρ ΠΏΡΡΠΊΠΎΠΌ Π±Π°Π·ΠΎΠ²ΠΎΠ³ΠΎ Π°ΡΠΈΠ½Ρ
ΡΠΎΠ½Π½ΠΎΠ³ΠΎ Π΄Π²ΠΈΠ³Π°ΡΠ΅Π»Ρ, ΠΎΡΠ»ΠΈΡΠ°Π΅ΡΡΡ ΠΌΠ΅Π½ΡΡΠ΅ΠΉ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄ΠΎΠΉ ΠΈ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²ΠΎΠΌ ΠΏΡΠ»ΡΡΠ°ΡΠΈΠΉ ΡΠ΄Π°ΡΠ½ΠΎΠ³ΠΎ ΡΠ»Π΅ΠΊΡΡΠΎΠΌΠ°Π³Π½ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΌΠΎΠΌΠ΅Π½ΡΠ°. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ ΠΊ ΡΠ°ΡΡΠ΅ΡΡ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ ΡΠ»Π΅ΠΊΡΡΠΎΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»Ρ Ρ ΠΏΠΎΠ»ΡΠΌ ΡΠ΅ΡΡΠΎΠΌΠ°Π³Π½ΠΈΡΠ½ΡΠΌ ΡΠΎΡΠΎΡΠΎΠΌ, Π·Π°ΠΊΠ»ΡΡΠ°ΡΡΠΈΠΉΡΡ Π² ΡΠΎΡΠ΅ΡΠ°Π½ΠΈΠΈ ΠΌΠ΅ΡΠΎΠ΄Π° ΡΠ΅ΠΎΡΠΈΠΈ ΠΎΠ±ΠΎΠ±ΡΠ΅Π½Π½ΠΎΠΉ ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠ°ΡΠΈΠ½Ρ Ρ ΡΠΈΡΠ»Π΅Π½Π½ΡΠΌ ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΊΠΎΠ½Π΅ΡΠ½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² Π² ΡΡΠ΅Ρ
ΠΌΠ΅ΡΠ½ΠΎΠΉ ΠΏΠΎΡΡΠ°Π½ΠΎΠ²ΠΊΠ΅. ΠΠ°Π½Π½ΡΠΉ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ ΠΎΠΏΡΠΎΠ±ΠΎΠ²Π°Π½ ΠΏΡΡΠ΅ΠΌ ΡΠΎΠΏΠΎΡΡΠ°Π²Π»Π΅Π½ΠΈΡ ΡΠ°ΡΡΠ΅ΡΠ½ΡΡ
ΠΈ ΠΎΠΏΡΡΠ½ΡΡ
Π΄Π°Π½Π½ΡΡ
ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
Π΄Π»Ρ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»Ρ Ρ ΠΏΠΎΠ»ΡΠΌ ΡΠ΅ΡΡΠΎΠΌΠ°Π³Π½ΠΈΡΠ½ΡΠΌ ΡΠΎΡΠΎΡΠΎΠΌ.
ΠΠ°ΡΡΠ½Π°Ρ Π½ΠΎΠ²ΠΈΠ·Π½Π°. ΠΠΎΠ»ΡΡΠ΅Π½Ρ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΡΠ»Π΅ΠΊΡΡΠΎΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»Ρ Ρ ΠΏΠΎΠ»ΡΠΌ Π³Π»Π°Π΄ΠΊΠΈΠΌ ΠΈ ΠΏΠ΅ΡΡΠΎΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌ ΡΠΎΡΠΎΡΠΎΠΌ ΠΏΡΠΈ ΠΏΡΡΠΊΠ΅ Ρ Π²Π΅Π½ΡΠΈΠ»ΡΡΠΎΡΠ½ΠΎΠΉ Π½Π°Π³ΡΡΠ·ΠΊΠΎΠΉ.
ΠΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠ°Ρ Π·Π½Π°ΡΠΈΠΌΠΎΡΡΡ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡ ΡΠ°ΡΡΠΈΡΠΈΡΡ Π½Π°ΡΡΠ½ΠΎ-ΡΠ΅ΠΎΡΠ΅ΡΠΈΡΠ΅ΡΠΊΡΡ Π±Π°Π·Ρ Π°ΡΠΈΠ½Ρ
ΡΠΎΠ½Π½ΡΡ
ΠΌΠ°ΡΠΈΠ½ Ρ ΡΠ΅ΡΡΠΎΠΌΠ°Π³Π½ΠΈΡΠ½ΡΠΌ ΡΠΎΡΠΎΡΠΎΠΌ ΠΈ ΠΌΠΎΠ³ΡΡ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ Π΄Π»Ρ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΈ ΠΈ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΡΠ»Π΅ΠΊΡΡΠΎΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»Π΅ΠΉ Ρ ΠΏΠΎΠ»ΡΠΌ ΠΏΠ΅ΡΡΠΎΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌ ΡΠΎΡΠΎΡΠΎΠΌ.ΠΠ΅ΡΠ°. ΠΠΈΠ·Π½Π°ΡΠ΅Π½Π½Ρ Π²ΠΏΠ»ΠΈΠ²Ρ ΠΏΠ΅ΡΡΠΎΡΠ°ΡΡΠΉ ΠΏΠΎΡΠΎΠΆΠ½ΠΈΡΡΠΎΠ³ΠΎ ΡΠ΅ΡΠΎΠΌΠ°Π³Π½ΡΡΠ½ΠΎΠ³ΠΎ ΡΠΎΡΠΎΡΠ° Π½Π° Π΄ΠΈΠ½Π°ΠΌΡΡΠ½Ρ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ Π΅Π»Π΅ΠΊΡΡΠΎΠΌΠ΅Ρ
Π°Π½ΡΡΠ½ΠΎΠ³ΠΎ ΠΏΠ΅ΡΠ΅ΡΠ²ΠΎΡΡΠ²Π°ΡΠ°.
ΠΠ΅ΡΠΎΠ΄ΠΈΠΊΠ°. Π ΠΎΠ·ΡΠ°Ρ
ΡΠ½ΠΎΠΊ Π΄ΠΈΠ½Π°ΠΌΡΡΠ½ΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ Π΅Π»Π΅ΠΊΡΡΠΎΠΌΠ΅Ρ
Π°Π½ΡΡΠ½ΠΎΠ³ΠΎ ΠΏΠ΅ΡΠ΅ΡΠ²ΠΎΡΡΠ²Π°ΡΠ° Π· ΠΏΠΎΡΠΎΠΆΠ½ΠΈΡΡΠΈΠΌ Π³Π»Π°Π΄ΠΊΠΈΠΌ Ρ ΠΏΠ΅ΡΡΠΎΡΠΎΠ²Π°Π½ΠΈΠΌ ΡΠΎΡΠΎΡΠΎΠΌ Π²ΠΈΠΊΠΎΠ½ΡΠ²Π°Π²ΡΡ Π· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ ΡΠ΅ΠΎΡΡΡ ΡΠ·Π°Π³Π°Π»ΡΠ½Π΅Π½ΠΎΡ Π΅Π»Π΅ΠΊΡΡΠΈΡΠ½ΠΎΡ ΠΌΠ°ΡΠΈΠ½ΠΈ, Π° ΡΠ°ΠΊΠΎΠΆ Π· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΡΡΡΠ΅Π½Π½Ρ Π΄ΠΈΡΠ΅ΡΠ΅Π½ΡΡΠ°Π»ΡΠ½ΠΈΡ
ΡΡΠ²Π½ΡΠ½Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΊΡΠ½ΡΠ΅Π²ΠΈΡ
Π΅Π»Π΅ΠΌΠ΅Π½ΡΡΠ² Ρ ΡΡΠΈΠ²ΠΈΠΌΡΡΠ½ΡΠΉ ΠΏΠΎΡΡΠ°Π½ΠΎΠ²ΡΡ.
Π Π΅Π·ΡΠ»ΡΡΠ°ΡΠΈ. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ Π²ΠΏΠ»ΠΈΠ²Ρ ΠΎΡΠ²ΠΎΡΡΠ² ΡΠΎΡΠΎΡΠ° Π½Π° ΡΠΎΡΠΌΡ Π΄ΠΈΠ½Π°ΠΌΡΡΠ½ΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ, ΡΠΎ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡ Π½Π° Π±Π°Π·Ρ ΠΏΠΎΡΡΠ²Π½ΡΠ½Π½Ρ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ Π΅Π»Π΅ΠΊΡΡΠΎΠΌΠ΅Ρ
Π°Π½ΡΡΠ½ΠΎΠ³ΠΎ ΠΏΠ΅ΡΠ΅ΡΠ²ΠΎΡΡΠ²Π°ΡΠ° Π· Π³Π»Π°Π΄ΠΊΠΈΠΌ Ρ ΠΏΠ΅ΡΡΠΎΡΠΎΠ²Π°Π½ΠΈΠΌ ΡΠΎΡΠΎΡΠΎΠΌ. ΠΠ²Π΅Π΄Π΅Π½Π½Ρ ΠΏΠ΅ΡΡΠΎΡΠ°ΡΡΠΉ ΡΠΎΡΠΎΡΠ° ΠΏΡΠΈΠ·Π²ΠΎΠ΄ΠΈΡΡ Π΄ΠΎ ΠΏΠ΅ΡΠ΅ΠΌΡΡΠ΅Π½Π½Ρ Π΄ΠΈΠ½Π°ΠΌΡΡΠ½ΠΎΡ ΠΌΠ΅Ρ
Π°Π½ΡΡΠ½ΠΎΡ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ Π²Π½ΠΈΠ· ΠΏΠ°ΡΠ°Π»Π΅Π»ΡΠ½ΠΎ ΡΠ°ΠΌΡΠΉ ΡΠΎΠ±Ρ. ΠΡΡΠΊ ΠΏΠ΅ΡΠ΅ΡΠ²ΠΎΡΡΠ²Π°ΡΠ° Π· ΠΏΠΎΡΠΎΠΆΠ½ΠΈΡΡΠΈΠΌ ΡΠ΅ΡΠΎΠΌΠ°Π³Π½ΡΡΠ½ΠΈΠΌ ΡΠΎΡΠΎΡΠΎΠΌ, Ρ ΠΏΠΎΡΡΠ²Π½ΡΠ½Π½Ρ Π· ΠΏΡΡΠΊΠΎΠΌ Π±Π°Π·ΠΎΠ²ΠΎΠ³ΠΎ Π°ΡΠΈΠ½Ρ
ΡΠΎΠ½Π½ΠΎΠ³ΠΎ Π΄Π²ΠΈΠ³ΡΠ½Π°, Π²ΡΠ΄ΡΡΠ·Π½ΡΡΡΡΡΡ ΠΌΠ΅Π½ΡΠΎΡ Π°ΠΌΠΏΠ»ΡΡΡΠ΄ΠΎΡ ΡΠ° ΠΊΡΠ»ΡΠΊΡΡΡΡ ΠΏΡΠ»ΡΡΠ°ΡΡΠΉ ΡΠ΄Π°ΡΠ½ΠΎΠ³ΠΎ Π΅Π»Π΅ΠΊΡΡΠΎΠΌΠ°Π³Π½ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠΎΠΌΠ΅Π½ΡΡ. ΠΠ°ΠΏΡΠΎΠΏΠΎΠ½ΠΎΠ²Π°Π½ΠΎ ΠΏΡΠ΄Ρ
ΡΠ΄ Π΄ΠΎ ΡΠΎΠ·ΡΠ°Ρ
ΡΠ½ΠΊΡ Π΄ΠΈΠ½Π°ΠΌΡΡΠ½ΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ Π΅Π»Π΅ΠΊΡΡΠΎΠΌΠ΅Ρ
Π°Π½ΡΡΠ½ΠΎΠ³ΠΎ ΠΏΠ΅ΡΠ΅ΡΠ²ΠΎΡΡΠ²Π°ΡΠ° Π· ΠΏΠΎΡΠΎΠΆΠ½ΠΈΡΡΠΈΠΌ ΡΠ΅ΡΠΎΠΌΠ°Π³Π½ΡΡΠ½ΠΈΠΌ ΡΠΎΡΠΎΡΠΎΠΌ, ΡΠΎ ΠΏΠΎΠ»ΡΠ³Π°Ρ Π² ΠΏΠΎΡΠ΄Π½Π°Π½Π½Ρ ΠΌΠ΅ΡΠΎΠ΄Ρ ΡΠ΅ΠΎΡΡΡ ΡΠ·Π°Π³Π°Π»ΡΠ½Π΅Π½ΠΎΡ Π΅Π»Π΅ΠΊΡΡΠΈΡΠ½ΠΎΡ ΠΌΠ°ΡΠΈΠ½ΠΈ Π· ΡΠΈΡΠ΅Π»ΡΠ½ΠΈΠΌ ΡΡΡΠ΅Π½Π½ΡΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΊΡΠ½ΡΠ΅Π²ΠΈΡ
Π΅Π»Π΅ΠΌΠ΅Π½ΡΡΠ² Ρ ΡΡΠΈΠ²ΠΈΠΌΡΡΠ½ΡΠΉ ΠΏΠΎΡΡΠ°Π½ΠΎΠ²ΡΡ. ΠΠ°Π½ΠΈΠΉ ΠΏΡΠ΄Ρ
ΡΠ΄ Π²ΠΈΠΏΡΠΎΠ±ΡΠ²Π°Π½ΠΈΠΉ ΡΠ»ΡΡ
ΠΎΠΌ ΠΏΠΎΡΡΠ²Π½ΡΠ½Π½Ρ ΡΠΎΠ·ΡΠ°Ρ
ΡΠ½ΠΊΠΎΠ²ΠΈΡ
Ρ Π΄ΠΎΡΠ»ΡΠ΄Π½ΠΈΡ
Π΄Π°Π½ΠΈΡ
, ΠΎΡΡΠΈΠΌΠ°Π½ΠΈΡ
Π΄Π»Ρ ΡΡΠ·ΠΈΡΠ½ΠΎΡ ΠΌΠΎΠ΄Π΅Π»Ρ ΠΏΠ΅ΡΠ΅ΡΠ²ΠΎΡΡΠ²Π°ΡΠ° Π· ΠΏΠΎΡΠΎΠΆΠ½ΠΈΡΡΠΈΠΌ ΡΠ΅ΡΠΎΠΌΠ°Π³Π½ΡΡΠ½ΠΈΠΌ ΡΠΎΡΠΎΡΠΎΠΌ.
ΠΠ°ΡΠΊΠΎΠ²Π° Π½ΠΎΠ²ΠΈΠ·Π½Π°. ΠΡΡΠΈΠΌΠ°Π½ΠΎ Π΄ΠΈΠ½Π°ΠΌΡΡΠ½Ρ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ Π΅Π»Π΅ΠΊΡΡΠΎΠΌΠ΅Ρ
Π°Π½ΡΡΠ½ΠΎΠ³ΠΎ ΠΏΠ΅ΡΠ΅ΡΠ²ΠΎΡΡΠ²Π°ΡΠ° Π· ΠΏΠΎΡΠΎΠΆΠ½ΠΈΡΡΠΈΠΌ Π³Π»Π°Π΄ΠΊΠΈΠΌ Ρ ΠΏΠ΅ΡΡΠΎΡΠΎΠ²Π°Π½ΠΈΠΌ ΡΠΎΡΠΎΡΠΎΠΌ ΠΏΡΠΈ ΠΏΡΡΠΊΡ Π· Π²Π΅Π½ΡΠΈΠ»ΡΡΠΎΡΠ½ΠΈΠΌ Π½Π°Π²Π°Π½ΡΠ°ΠΆΠ΅Π½Π½ΡΠΌ.
ΠΡΠ°ΠΊΡΠΈΡΠ½Π° Π·Π½Π°ΡΠΈΠΌΡΡΡΡ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΠΈ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ Π΄ΠΎΠ·Π²ΠΎΠ»ΡΡΡΡ ΡΠΎΠ·ΡΠΈΡΠΈΡΠΈ Π½Π°ΡΠΊΠΎΠ²ΠΎ-ΡΠ΅ΠΎΡΠ΅ΡΠΈΡΠ½Ρ Π±Π°Π·Ρ Π°ΡΠΈΠ½Ρ
ΡΠΎΠ½Π½ΠΈΡ
ΠΌΠ°ΡΠΈΠ½ Π· ΡΠ΅ΡΠΎΠΌΠ°Π³Π½ΡΡΠ½ΠΈΠΌ ΡΠΎΡΠΎΡΠΎΠΌ Ρ ΠΌΠΎΠΆΡΡΡ Π±ΡΡΠΈ Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Ρ Π΄Π»Ρ ΠΎΠΏΡΠΈΠΌΡΠ·Π°ΡΡΡ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΡΡ ΠΉ ΠΏΡΠ΄Π²ΠΈΡΠ΅Π½Π½Ρ Π΅ΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½Ρ Π΅Π»Π΅ΠΊΡΡΠΎΠΌΠ΅Ρ
Π°Π½ΡΡΠ½ΠΈΡ
ΠΏΠ΅ΡΠ΅ΡΠ²ΠΎΡΡΠ²Π°ΡΡΠ² Π· ΠΏΠΎΡΠΎΠΆΠ½ΠΈΡΡΠΈΠΌ ΠΏΠ΅ΡΡΠΎΡΠΎΠ²Π°Π½ΠΈΠΌ ΡΠΎΡΠΎΡΠΎΠΌ.ΠΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ Π΄Π°Π½Π½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π±ΡΠ»ΠΎ Π±Ρ Π½Π΅Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΡΠΌ Π±Π΅Π· ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠΈ, ΠΎΡΡΡΠ΅ΡΡΠ²Π»Π΅Π½Π½ΠΎΠΉ Π² ΡΠ°ΠΌΠΊΠ°Ρ
Π³ΠΎΡΠ±ΡΠ΄ΠΆΠ΅ΡΠ½ΠΎΠΉ Π½Π°ΡΡΠ½ΠΎ-ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»ΡΡΠΊΠΎΠΉ ΡΠ΅ΠΌΠ°ΡΠΈΠΊΠΈ β 208 βΠ Π°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΠΏΠΎΠ΄ΡΠΈΡΡΠ΅ΠΌΡ ΠΏΡΠΎΠ³Π½ΠΎΠ·Π° ΠΈ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΎΠΉ ΠΌΠ΅ΡΠ°Π½ΠΎΠ²ΠΎΡΡΠΈ Π³ΠΎΡΠ½ΡΡ
Π²ΡΡΠ°Π±ΠΎΡΠΎΠΊβ, Π²ΡΠΏΠΎΠ»Π½ΡΠ΅ΠΌΠΎΠΉ Π² ΠΠΎΠ½Π±Π°ΡΡΠΊΠΎΠΌ Π³ΠΎΡΡΠ΄Π°ΡΡΡΠ²Π΅Π½Π½ΠΎΠΌ ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΎΠΌ ΡΠ½ΠΈΠ²Π΅ΡΡΠΈΡΠ΅ΡΠ΅. ΠΠ²ΡΠΎΡΡ Π²ΡΡΠ°ΠΆΠ°ΡΡ ΠΏΡΠΈΠ·Π½Π°ΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΠΏΡΠΎΡΠ΅ΡΡΠΎΡΡ Π.Π. ΠΠ½ΡΠΎΡΠ΅Π½ΠΊΠΎ Π·Π° ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΡ Π² ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ
Search for the Cryptoexotic Member of the Baryon Antidecuplet 1/2+ in the Reactions pi- p --> pi- p and pi- p --> K L
The main goal of this proposal is the search for a narrow cryptoexotic
nucleon resonance by scanning of the pi- p system invariant mass in the region
(1610-1770) MeV with the detection of pi- p and K Lambda decays. The scan is
supposed to be done by the variation of the incident pi- momentum and its
measurement with the accuracy of up to +-0.1% (better than 1 MeV in terms of
the invariant mass in the whole energy range) with a set of proportional
chambers located in the first focus of the magnetooptical channel. High
sensitivity of the method to the resonance under search is shown. The secondary
particles scattered from a liquid hydrogen target are detected by sets of the
wire drift chambers equipped with modern electronics. The time scale of the
project is about 3 years. The budget estimate including manpower, the apparatus
and operation cost, is about 40 million rubles. The beam time required is (4-6)
two week runs on "high" (10 GeV/c) flattop of the ITEP proton synchrotron.Comment: 16 pages, 10 figures. v2: an acknowledge adde
Centrality and transverse momentum dependence of elliptic flow of multi-strange hadrons and meson in Au+Au collisions at = 200 GeV
We present high precision measurements of elliptic flow near midrapidity
() for multi-strange hadrons and meson as a function of
centrality and transverse momentum in Au+Au collisions at center of mass energy
200 GeV. We observe that the transverse momentum dependence of
and is similar to that of and , respectively,
which may indicate that the heavier strange quark flows as strongly as the
lighter up and down quarks. This observation constitutes a clear piece of
evidence for the development of partonic collectivity in heavy-ion collisions
at the top RHIC energy. Number of constituent quark scaling is found to hold
within statistical uncertainty for both 0-30 and 30-80 collision
centrality. There is an indication of the breakdown of previously observed mass
ordering between and proton at low transverse momentum in the
0-30 centrality range, possibly indicating late hadronic interactions
affecting the proton .Comment: 7 pages and 4 figures, Accepted for publication in Physical Review
Letter
Elliptic flow of electrons from heavy-flavor hadron decays in Au+Au collisions at 200, 62.4, and 39 GeV
We present measurements of elliptic flow () of electrons from the decays
of heavy-flavor hadrons () by the STAR experiment. For Au+Au collisions
at 200 GeV we report , for transverse momentum
() between 0.2 and 7 GeV/c using three methods: the event plane method
({EP}), two-particle correlations ({2}), and four-particle
correlations ({4}). For Au+Au collisions at = 62.4 and
39 GeV we report {2} for GeV/c. {2} and {4} are
non-zero at low and intermediate at 200 GeV, and {2} is consistent
with zero at low at other energies. The {2} at the two lower beam
energies is systematically lower than at 200 GeV for
GeV/c. This difference may suggest that charm quarks interact less
strongly with the surrounding nuclear matter at those two lower energies
compared to GeV.Comment: Version accepted by PR
JUNO Conceptual Design Report
The Jiangmen Underground Neutrino Observatory (JUNO) is proposed to determine
the neutrino mass hierarchy using an underground liquid scintillator detector.
It is located 53 km away from both Yangjiang and Taishan Nuclear Power Plants
in Guangdong, China. The experimental hall, spanning more than 50 meters, is
under a granite mountain of over 700 m overburden. Within six years of running,
the detection of reactor antineutrinos can resolve the neutrino mass hierarchy
at a confidence level of 3-4, and determine neutrino oscillation
parameters , , and to
an accuracy of better than 1%. The JUNO detector can be also used to study
terrestrial and extra-terrestrial neutrinos and new physics beyond the Standard
Model. The central detector contains 20,000 tons liquid scintillator with an
acrylic sphere of 35 m in diameter. 17,000 508-mm diameter PMTs with high
quantum efficiency provide 75% optical coverage. The current choice of
the liquid scintillator is: linear alkyl benzene (LAB) as the solvent, plus PPO
as the scintillation fluor and a wavelength-shifter (Bis-MSB). The number of
detected photoelectrons per MeV is larger than 1,100 and the energy resolution
is expected to be 3% at 1 MeV. The calibration system is designed to deploy
multiple sources to cover the entire energy range of reactor antineutrinos, and
to achieve a full-volume position coverage inside the detector. The veto system
is used for muon detection, muon induced background study and reduction. It
consists of a Water Cherenkov detector and a Top Tracker system. The readout
system, the detector control system and the offline system insure efficient and
stable data acquisition and processing.Comment: 328 pages, 211 figure
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