Осцилятор Дуффинга. Астахов В.В - 43 стр.

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˙ρ =
α
2
ρ +
B
2ω
0
sin ψ,
˙
ψ =
δ
3µ
8ω
0
ρ
2
+
B
2ω
0
ρ
cos ψ.
ρ = ρ
0
ψ = ψ
0
α
2
ρ
0
=
B
2ω
0
sin ψ
0
,
δ
3µ
8ω
0
ρ
2
0
ρ
0
=
B
2ω
0
cos ψ
0
.
α
2
ρ
0
2
+ ρ
2
0
δ
3µ
8ω
0
ρ
2
0
2
=
B
2
4ω
2
0
,
ρ
2
0
+ ρ
2
0
2δ
α
3µ
4αω
0
ρ
2
0
2
=
B
2
α
2
ω
2
0
3µ
4αω
0
3µ
4αω
0
ρ
2
0
+
3µ
4αω
0
ρ
2
0
2δ
α
3µ
4αω
0
ρ
2
0
2
=
3µ
4αω
0
B
2
α
2
ω
2
0
,
3µ
4αω
0
ρ
2
0
= A
2δ
α
=
3µB
2
4α
3
ω
3
0
= F