, , . , .
- , , . , , X (.4.5). w, X . , .
ω0 |
1 |
.4.5 .4.6 |
, :
, (4.20)
. (4.21)
A1 A2 A, (.4.6).
ω0
, (4.22)
:
, (4.23)
. (4.24)
, , ω ω+ Δ ω (Δω<<ω). 1=2= , α1= α2 = 0.
(4.25)
x = x1+ x2, ..
x = cosωt + cos(ω+ Δ ω)t =
= (4.26)
Δ ω << ω,
. (4.27)
, cosωt, ω,
. (.4.7).
t |
.4.7
(4.28)
, - (), (. .4.7), .
4.1.5.
.
X Y. , .
, (4.29)
, (4.30)
- .
t, .
. (4.31)
(4.31) , X Y.
|
|
:
1) = 0 (4.31)
. (4.32)
- , - .
- - |
y |
- + - |
y |
2) - ,
. (4.34)
y B |
- π/2 +π/2 |
- A A -B |
. (4.35)
π/2. .
- , , , .
, ω 2 ω Δφ1 =0 Δφ2 = π/2, .4.8 .4.9.
y |
- + - |
y |
- + - |
.4.8 |
.4.9 |
.
.