编辑: 霜天盈月祭 | 2016-09-03 |
11 .
12 F ? ? ? ? = = = = ? ? ? ? 2-8 ) )( (sin E e o o o d d α α α α α α α α α α α α ? ? ? ? ? ? ? ? = = = = ? ? ? ? 2-9 )
2 s )(
1 s (
2 s
4 s (s)
2 + + + + + + + + + + + + + + + + = = = = Φ Φ Φ Φ t t
2 e e
2 ) t ( dt ) t ( dc ) t ( k ? ? ? ? ? ? ? ? ? ? ? ? + + + + δ δ δ δ = = = = = = = = 2-10 零零零零初态 初态 初态 初态响应 响应 响应 响应 t
2 e e
2 1 ) t ( c t
1 ? ? ? ? + + + + ? ? ? ? = = = = ? ? ? ? 零零零零输入 输入 输入 输入响应 响应 响应 响应 t t
2 2 e
2 e ) t ( c ? ? ? ? ? ? ? ? ? ? ? ? = = = = 总输出 总输出 总输出 总输出 t t e e t c t c t c
2 2
1 2
4 1 ) ( ) ( ) ( ? ? ? ? ? ? ? ? + + + + ? ? ? ? = = = = + + + + = = = = ( ( ( (2-11题题题题~2-15 题题题题) ) ) ) 2-11
25 s
23 s
12 )
1 s
4 (
100 ) s ( R ) s ( C
2 + + + + + + + + + + + + = = = =
25 s
23 s
12 )
5 s
23 s
12 (
10 ) s ( R ) s ( E
2 2 + + + + + + + + + + + + + + + + = = = = 2-12(a) s C R )
10 s C R )(
1 s C R ( ) s ( U ) s ( U
1 o o o
1 1 i o + + + + + + + + ? ? ? ? = = = = (b) )
1 s C R ( R R ) s ( U ) s ( U o o o
1 i o + + + + ? ? ? ? = = = = (b)
1 s C ) R R ( )
1 s C R ( R R ) s ( U ) s ( U
2 2
1 2
2 o
1 i o + + + + + + + + + + + + ? ? ? ? = = = = 2-13
2 1
2 3 o
2 2
1 1
3 o
2 1 i o R R s C R s C C R R R R ) s ( U ) s ( U + + + + + + + + ? ? ? ? = = = = 2-14
1 s T K ) s ( U ) s ( m
1 a m + + + + = = = = ? ? ? ?
1 s T K ) s ( M ) s ( m
2 a m + + + + ? ? ? ? = = = = ? ? ? ? 2-15
11 1
3 2 k3 )
1 s T ( s k m m + + + +
3 s k t
11 1 i θ θ θ θ o θ θ θ θ i u o u u ? ? ? ?
1 u
2 u a u t u m
3 m t
3 2 m i o k k
26 .
31 s ) k k k
3 1 ( s T
26 .
31 ) s ( ) s ( + + + + + + + + + + + + = = = = θ θ θ θ θ θ θ θ ( ( ( (2-22 题题题题) ) ) ) 2-22(a)
2 3
2 3
4 3
1 3
5 4
3 2
1 6 H G G H G G H G
1 G G G G G G ) s ( R ) s ( C + + + + + + + + + + + + + + + + = = = = (b) 9个个个个单独回 单独回 单独回 单独回 路路路路: : : :
5 6
5 4
3 2
1 5
4 5
4 3
4 3
6 3
2 4
2 1
2 1 H G G G G G G L , H G G G L , H G L , H G L , H G L ? ? ? ? = = = = ? ? ? ? = = = = ? ? ? ? = = = = ? ? ? ? = = = = ? ? ? ? = = = =
1 4
8 9
5 6
8 1
7 8
5 6
8 1
7 5
6 5
4 3
7 6 H H G L , H G G H G L , H G G G L , H G G G G G L = = = = = = = = ? ? ? ? = = = = ? ? ? ? = = = = 6对两两互不接触回路 对两两互不接触回路 对两两互不接触回路 对两两互不接触回路: : : : L1L2 L1L3 L2L3 L7L2 L8L2 L9L2 三个互不接触回路 三个互不接触回路 三个互不接触回路 三个互不接触回路1组组组组: : : : L1L2L3 4条前向通路及其余子 条前向通路及其余子 条前向通路及其余子 条前向通路及其余子 式式式式: : : : P1=G1G2G3G4G5G6 ,Δ1=1 ;
P2=G7G3G4G5G6 , Δ2=1 ;
P3=-G7H1G8G6 ,Δ3=1+G4H2 ;
P4=G1G8G6 , Δ4=1+G4H2 ;
∑ ∑ ∑ ∑ ∑ ∑ ∑ ∑ ∑ ∑ ∑ ∑ = = = = = = = = ? ? ? ? + + + + ? ? ? ? ? ? ? ? = = = =
9 1 a
6 1
3 2
1 c b a
4 1 k k k L L L L L L
1 P ) s ( R ) s ( C (c)
128 .
15 39
590 ) s ( R ) s ( C = = = = = = = = (d) afch ehgf ch bg af
1 ) bg
1 ( ed abcd ) s ( R ) s ( C + + + + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? + + + + = = = = (e) adeh cefg bcdeh eg cf