A
e
a
a
a
r
a
C
飦?/p>
1
O
飦?
2
O
B
A
2
O
1
O
e
v
v
r
v
C
B
A
v
飦?
飦?
涔犻
7-1
鍥?/p>
1
飦?/p>
A
e
飦?/p>
A
B
/
飦?/p>
B
飦?/p>
A
飦?/p>
O
飦?
(a)
2
飦?/p>
B
O
飦?
B
飦?/p>
飦?/p>
飥?/p>
e
B
A
/
飦?/p>
A
飦?/p>
(b)
涔犻
7-3
鍥?/p>
绗?/p>
7
绔?/p>
鐐圭殑澶嶅悎杩愬姩
7-1
鍥剧ず杞?/p>
A
娌垮崐寰?/p>
R
鐨勫渾寮ц建閬撹繍鍔紝鍏堕�熷害涓?/p>
v
A
銆傝溅
B
娌跨洿绾胯建閬撹椹讹紝鍏堕�熷害涓?/p>
v
B
銆傝瘯闂潗
鍦ㄨ溅
A
涓殑瑙傚療鑰呮墍鐪嬪埌杞?/p>
B
鐨勭浉瀵归�熷害
v
B
/
A
锛屼笌鍧愬湪杞?/p>
B
涓殑瑙傚療鑰呯湅鍒拌溅
A
鐨勭浉瀵归�熷害
v
A
/
B
锛屾槸鍚︽湁
B
A
A
B
/
/
v
v
飥?/p>
飥?/p>
锛燂紙璇曠敤鐭㈤噺涓夎褰㈠姞浠ュ垎鏋愩�?/p>
锛?/p>
绛旓細
B
A
A
B
/
/
v
v
飥?/p>
飩?/p>
1
锛庝互
A
涓哄姩绯伙紝
B
涓哄姩鐐癸紝姝ゆ椂缁濆杩愬姩锛氱洿绾匡紱鐩稿杩愬姩锛氬钩闈㈡洸绾匡紱鐗佃繛杩愬姩锛氬畾杞磋浆鍔ㄣ�?/p>
涓轰簡瀹氶噺涓句緥锛岃
R
OB
3
飥?/p>
锛?/p>
v
v
v
B
A
飥?/p>
飥?/p>
锛屽垯
v
v
3
e
飥?/p>
鈭?/p>
飪?/p>
飪?
飪?/p>
飩?
飥?/p>
飥?/p>
60
2
1
/
飦?/p>
v
v
A
B
2
锛庝互
B
涓哄姩绯伙紝
A
涓哄姩鐐广�傜壍杩炶繍鍔ㄤ负锛氬钩绉伙紱缁濆杩愬姩锛氬渾鍛ㄨ繍鍔紱鐩稿杩愬姩锛氬钩闈㈡洸绾裤�?/p>
姝ゆ椂
飪?
飪?/p>
飪?/p>
飪?/p>
飪?/p>
飩?/p>
飥?/p>
飥?/p>
45
2
2
/
飦?/p>
v
v
B
A
鈭?/p>
B
A
A
B
/
/
v
v
飥?/p>
飩?/p>
7-3
鍥剧ず璁板綍瑁呯疆涓殑榧撹疆浠ョ瓑瑙掗�熷害
0
飦?/p>
杞姩锛?/p>
榧撹疆鐨勫崐寰勪负
r
銆傝嚜鍔ㄨ褰曠瑪杩炴帴鍦ㄦ部閾呭瀭鏂瑰悜骞舵寜
)
sin(
1
t
a
y
飦?/p>
飥?/p>
瑙勫緥杩愬姩鐨勬瀯浠朵笂銆傝瘯姹傝褰曠瑪鍦ㄧ焊甯︿笂鎵�鐢绘洸绾跨殑鏂圭▼銆?/p>
瑙ｏ細
t
r
x
0
飦?/p>
飥?/p>
锛?/p>
1
锛?/p>
)
sin(
1
t
a
y
飦?/p>
飥?/p>
锛?/p>
2
锛?/p>
鐢憋紙
1
锛?/p>
0
飦?/p>
r
x
t
飥?
浠ｅ叆锛?/p>
2
锛?/p>
锛屽緱
)
sin(
0
1
r
x
a
y
飦?/p>
飦?/p>
飥?/p>
7-5
鍥剧ず閾版帴鍥涜竟褰㈡満鏋勪腑锛?/p>
O
1
A
=
O
2
B
= 100mm
锛?/p>
O
1
O
2
=
AB
锛屾潌
O
1
A
浠ョ瓑瑙掗�熷害
飦?/p>
= 2rad/s
缁曡酱
O
1
杞姩銆?/p>
AB
鏉嗕笂鏈変竴濂楃瓛
C
锛屾濂楃瓛涓庢潌
CD
鐩搁摪鎺ワ紝鏈烘瀯鐨勫悇閮ㄤ欢閮藉湪鍚屼竴閾呭瀭闈㈠唴銆傝瘯姹傚綋
飦?/p>
=
飩?/p>
60
锛?/p>
CD
鏉嗙殑閫熷害鍜屽姞閫熷害銆?/p>
瑙ｏ細
1
锛庡姩鐐癸細
C
锛?/p>
CD
涓婏級
锛屽姩绯伙細
AB
锛岀粷瀵癸細
鐩寸嚎锛岀浉瀵癸細鐩寸嚎锛岀壍杩烇細骞崇Щ銆?/p>
2
锛?/p>
r
e
a
v
v
v
飥?/p>
飥?/p>
锛堝浘
a
锛?/p>
v
e
=
v
A
01
.
0
2
1
2
1
.
0
cos
e
a
飥?/p>
飩?
飩?/p>
飥?/p>
飥?/p>
飦?/p>
v
v
m/s
锛堚啈锛?/p>
3
锛?/p>
r
e
a
a
a
a
飥?/p>
飥?/p>
锛堝浘
b
锛?/p>
4
.
0
2
1
.
0
2
2
e
飥?/p>
飩?/p>
飥?/p>
飥?/p>
飦?/p>
r
a
m/s
2
346
.
0
30
cos
e
a
飥?/p>
飩?/p>
飥?/p>
a
a
m/s
2
锛堚啈锛?/p>