4 research outputs found
Π‘Π΅ΠΌΠ΅ΠΉΡΡΠ²ΠΎ Π½Π΅Π³ΡΡΠ±ΡΡ ΡΠΈΠΊΠ»ΠΎΠ² Π² ΡΠΈΡΡΠ΅ΠΌΠ΅ Π΄Π²ΡΡ ΡΠ²ΡΠ·Π°Π½Π½ΡΡ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠΎΠ² Ρ Π·Π°ΠΏΠ°Π·Π΄ΡΠ²Π°Π½ΠΈΠ΅ΠΌ
In this paper, we consider the nonlocal dynamics of the model of two coupled oscillators with delayed feedback. This model has the form of a system of two differential equations with delay. The feedback function is non-linear, finite and smooth. The main assumption in the problem is that the coupling between the generators is sufficiently small. With the help of asymptotic methods we investigate the existence of relaxation periodic solutions of a given system. For this purpose, a special set is constructed in the phase space of the original system. Then we build an asymptotics of the solutions of the given system with initial conditions from this set. Using this asymptotics, a special mapping is constructed. Dynamics of this map describes the dynamics of the original problem in general. It is proved that all solutions of this mapping are non-rough cycles of period two. As a result, we formulate conditions for the coupling parameter such that the initial system has a two-parameter family of nonrough inhomogeneous relaxation periodic asymptotic (with respect to the residual) solutions.Β Π Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΡΡΡ Π½Π΅Π»ΠΎΠΊΠ°Π»ΡΠ½Π°Ρ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΌΠΎΠ΄Π΅Π»ΠΈ Π΄Π²ΡΡ
ΡΠ²ΡΠ·Π°Π½Π½ΡΡ
Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠΎΠ² Ρ Π·Π°ΠΏΠ°Π·Π΄ΡΠ²Π°ΡΡΠ΅ΠΉ ΠΎΠ±ΡΠ°ΡΠ½ΠΎΠΉ ΡΠ²ΡΠ·ΡΡ. ΠΡΠ° ΠΌΠΎΠ΄Π΅Π»Ρ ΠΈΠΌΠ΅Π΅Ρ Π²ΠΈΠ΄ ΡΠΈΡΡΠ΅ΠΌΡ Π΄Π²ΡΡ
Π΄ΠΈΡΡΠ΅ΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΡΡ
ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΉ Ρ Π·Π°ΠΏΠ°Π·Π΄ΡΠ²Π°Π½ΠΈΠ΅ΠΌ. Π€ΡΠ½ΠΊΡΠΈΡ ΠΎΠ±ΡΠ°ΡΠ½ΠΎΠΉ ΡΠ²ΡΠ·ΠΈ ΡΠ²Π»ΡΠ΅ΡΡΡ Π½Π΅Π»ΠΈΠ½Π΅ΠΉΠ½ΠΎΠΉ, ΡΠΈΠ½ΠΈΡΠ½ΠΎΠΉ ΠΈ Π³Π»Π°Π΄ΠΊΠΎΠΉ. ΠΠ»Π°Π²Π½ΡΠΌ ΠΏΡΠ΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ΠΌ Π² Π·Π°Π΄Π°ΡΠ΅ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠΎ, ΡΡΠΎ ΡΠ²ΡΠ·Ρ ΠΌΠ΅ΠΆΠ΄Ρ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ°ΠΌΠΈ Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎ ΠΌΠ°Π»Π°Ρ. ΠΡΠΈΠΌΠΏΡΠΎΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠΈ ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΡΡΡ ΡΡΡΠ΅ΡΡΠ²ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ΅Π»Π°ΠΊΡΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΏΠ΅ΡΠΈΠΎΠ΄ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ΅ΡΠ΅Π½ΠΈΠΉ Π΄Π°Π½Π½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ. ΠΠ»Ρ ΡΡΠΎΠ³ΠΎ Π² ΡΠ°Π·ΠΎΠ²ΠΎΠΌ ΠΏΡΠΎΡΡΡΠ°Π½ΡΡΠ²Π΅ ΠΈΡΡ
ΠΎΠ΄Π½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ Π²ΡΠ΄Π΅Π»ΡΠ΅ΡΡΡ ΡΠΏΠ΅ΡΠΈΠ°Π»ΡΠ½ΠΎΠ΅ ΠΌΠ½ΠΎΠΆΠ΅ΡΡΠ²ΠΎ. ΠΠ°ΡΠ΅ΠΌ Π½Π°Ρ
ΠΎΠ΄ΠΈΡΡΡ Π°ΡΠΈΠΌΠΏΡΠΎΡΠΈΠΊΠ° ΡΠ΅ΡΠ΅Π½ΠΈΠΉ Π΄Π°Π½Π½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ Ρ Π½Π°ΡΠ°Π»ΡΠ½ΡΠΌΠΈ ΡΡΠ»ΠΎΠ²ΠΈΡΠΌΠΈ ΠΈΠ· ΡΡΠΎΠ³ΠΎ ΠΌΠ½ΠΎΠΆΠ΅ΡΡΠ²Π°. Π‘ ΠΏΠΎΠΌΠΎΡΡΡ ΡΡΠΎΠΉ Π°ΡΠΈΠΌΠΏΡΠΎΡΠΈΠΊΠΈ ΡΡΡΠΎΠΈΡΡΡ ΡΠΏΠ΅ΡΠΈΠ°Π»ΡΠ½ΠΎΠ΅ ΠΎΡΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΠ΅, ΠΎΠΏΠΈΡΡΠ²Π°ΡΡΠ΅Π΅ Π² Π³Π»Π°Π²Π½ΠΎΠΌ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΡ ΠΈΡΡ
ΠΎΠ΄Π½ΠΎΠΉ Π·Π°Π΄Π°ΡΠΈ. ΠΠΎΠΊΠ°Π·ΡΠ²Π°Π΅ΡΡΡ, ΡΡΠΎ Π²ΡΠ΅ ΡΠ΅ΡΠ΅Π½ΠΈΡ Π΄Π°Π½Π½ΠΎΠ³ΠΎ ΠΎΡΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΡ ΡΠ²Π»ΡΡΡΡΡ Π½Π΅Π³ΡΡΠ±ΡΠΌΠΈ ΡΠΈΠΊΠ»Π°ΠΌΠΈ ΠΏΠ΅ΡΠΈΠΎΠ΄Π° Π΄Π²Π°. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΡΠ΄Π°Π΅ΡΡΡ ΡΡΠΎΡΠΌΡΠ»ΠΈΡΠΎΠ²Π°ΡΡ ΡΡΠ»ΠΎΠ²ΠΈΡ Π½Π° ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡ ΡΠ²ΡΠ·ΠΈ, ΠΏΡΠΈ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ ΠΊΠΎΡΠΎΡΡΡ
ΠΈΡΡ
ΠΎΠ΄Π½Π°Ρ ΡΠΈΡΡΠ΅ΠΌΠ° ΠΈΠΌΠ΅Π΅Ρ Π΄Π²ΡΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΡΠ΅ΠΌΠ΅ΠΉΡΡΠ²ΠΎ Π½Π΅Π³ΡΡΠ±ΡΡ
Π½Π΅ΠΎΠ΄Π½ΠΎΡΠΎΠ΄Π½ΡΡ
ΡΠ΅Π»Π°ΠΊΡΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΏΠ΅ΡΠΈΠΎΠ΄ΠΈΡΠ΅ΡΠΊΠΈΡ
Π°ΡΠΈΠΌΠΏΡΠΎΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠΎ Π½Π΅Π²ΡΠ·ΠΊΠ΅ ΡΠ΅ΡΠ΅Π½ΠΈΠΉ.
A Family of Non-rough Cycles in a System of Two Coupled Delayed Generators
In this paper, we consider the nonlocal dynamics of the model of two coupled oscillators with delayed feedback. This model has the form of a system of two differential equations with delay. The feedback function is non-linear, finite and smooth. The main assumption in the problem is that the coupling between the generators is sufficiently small. With the help of asymptotic methods we investigate the existence of relaxation periodic solutions of a given system. For this purpose, a special set is constructed in the phase space of the original system. Then we build an asymptotics of the solutions of the given system with initial conditions from this set. Using this asymptotics, a special mapping is constructed. Dynamics of this map describes the dynamics of the original problem in general. It is proved that all solutions of this mapping are non-rough cycles of period two. As a result, we formulate conditions for the coupling parameter such that the initial system has a two-parameter family of nonrough inhomogeneous relaxation periodic asymptotic (with respect to the residual) solutions