鐢佃矾鍒嗘瀽
_
涔犻绛旀
_
绗竴绔?/p>
1
绗竴绔?/p>
涔犻绛旀
1-1
棰?/p>
1-1
鍥炬墍绀轰竴娈垫椂鍙樼數娴佺數璺腑锛岀數娴?/p>
i
(t)
涓庣數鑽?/p>
q
(t)
娴佸悜鐩稿悓锛屽凡鐭?/p>
q
(t)
鐨勬尝褰㈠鍥?
b
鎵�绀猴紝璇曡绠楋紙
0
锛?/p>
5s
锛夊唴鐨勭數娴?/p>
i
(t)
锛岀敾鍑哄叾娉㈠舰锛屾寚鍑?/p>
i
(t)
瀹為檯鏂瑰悜銆?/p>
b
i(
t)
q(
t)
+
(a)
a
棰?/p>
1-1
鍥?/p>
瑙ｏ細
鐢遍
1-1
鍥?/p>
(b)
锛屽緱锛?/p>
鐢垫祦
i
(t)
涓猴細
1-4
鎸夐
1-4
鍥炬墍绀哄弬鑰冩柟鍚戝強缁欏畾鍊硷紝
鍒ゅ埆鍚勫厓浠朵腑鐢垫祦鍜岀數鍘嬬殑瀹為檯鏂瑰悜
璁＄畻鍚勫厓浠朵腑
鐨勫姛鐜囷紝璇存槑鍏冧欢鏄惛鏀惰繕鏄彂鍑哄姛鐜囥�?/p>
棰?/p>
1-4
鍥?/p>
瑙ｏ細
(a)
鐢垫祦鍜岀數鍘嬬殑鏂瑰悜鍧囦负瀹為檯鏂瑰悜銆?/p>
P=-2
飩?/p>
6=-12W
锛屽彂鍑哄姛鐜囥�?/p>
(b)
鐢垫祦鍜岀數鍘嬬殑鏂瑰悜鍧囦负瀹為檯鏂瑰悜銆?/p>
P=3cos
飦?/p>
t
飩?/p>
10cos
飦?/p>
t =30cos
2
飦?/p>
t W
锛屽惛鏀跺姛鐜囥�?/p>
(c)
鐢垫祦瀹為檯鏂瑰悜涓庡浘绀虹浉鍙嶏紝鐢靛帇鐨勬柟鍚戜负瀹為檯鏂瑰悜銆?/p>
P=-20
飩?/p>
10
-3
飩?/p>
10 =-0.2 W
锛屽彂鍑哄姛鐜囥�?/p>
(d)
鐢垫祦鍜岀數鍘嬬殑鏂瑰悜鍧囦负瀹為檯鏂瑰悜銆?/p>
P=20
飩?/p>
10
-6
飩?/p>
5=10
-4
W
锛屽惛鏀跺姛鐜囥�?/p>
1-5
鍚勫厓浠跺棰?/p>
1-5
鍥炬墍绀猴細
(1)
鑻ュ厓浠?/p>
A
鍚告敹鍔熺巼
10W
姹?/p>
U
a
锛?/p>
(2)
鑻ュ厓浠?/p>
B
鍚告敹鍔熺巼
10W
姹?/p>
I
b
锛?/p>
(3)
鍏冧欢
C
鍚告敹鍔熺巼
-10W
姹?/p>
I
c
锛?/p>
(4)
璇曟眰鍏冧欢
D
鍚告敹鐨勫姛鐜囷紱
(5)
鑻ュ厓浠?/p>
E
浜х敓鐨勫姛鐜囦负
10W
姹?/p>
I
e
锛?/p>
(6)
鑻ュ厓浠?/p>
F
浜х敓鐨勫姛鐜?/p>
-10W
姹?/p>
U
f
锛?/p>
(7)
鑻ュ厓浠?/p>
G
浜х敓鐨勫姛鐜囦负
10W
姹?/p>
I
G
锛?/p>
(8)
璇曟眰鍏冧欢
H
浜х敓鐨勫姛鐜囥�?/p>
(b)
飪?/p>
飪?
飪?
飪?/p>
飪?/p>
飩?/p>
飩?/p>
飩?/p>
飩?/p>
飩?/p>
飩?/p>
飩?/p>
飥?/p>
飥?/p>
2
t
0
a
b
2
t
1
A
8
-
b
a
1
t
1
-
A
dt
dq
t
i
2
)
(
飪?/p>
飪?
飪?
飪?/p>
飪?/p>
飩?/p>
飩?/p>
飩?/p>
飥?/p>
飩?/p>
飩?/p>
飥?/p>
飥?/p>
2
t
4
-
2
t
1
12
8t
-
1
t
1
-
2
t
t
q
2
)
(
i(t)
/A
t
/s
-1
0
1
2
3
4
5
2
-8