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绮鹃�夊叕鏂囪寖鏂囷紝
绠＄悊绫伙紝
宸ヤ綔鎬荤粨绫伙紝
宸ヤ綔璁″垝绫绘枃妗ｏ紝
娆㈣繋闃呰涓嬭浇
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绮鹃�夊叕鏂囪寖鏂囷紝绠＄悊绫伙紝宸ヤ綔鎬荤粨绫伙紝宸ヤ綔璁″垝绫绘枃妗ｏ紝鎰熻阿闃呰涓嬭浇
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~ 1 ~
鐞嗚鍔涘锛堟満姊板伐涓氬嚭鐗堢ぞ锛夌涓夌珷
绌洪棿鍔涚郴涔犻瑙ｇ瓟
涔?/p>
棰?/p>
3-1
鍦ㄨ竟闀夸负
a
鐨勬鍏潰浣撲笂浣滅敤鏈変笁涓姏锛?/p>
濡傚浘
3-26
鎵�绀猴紝
宸茬煡锛?/p>
F1=6kN
锛?/p>
F2=2kN
锛?/p>
F3=4kN
銆?/p>
璇?/p>
姹?/p>
鍚?/p>
鍔?/p>
鍦?/p>
涓?/p>
涓?/p>
鍧?/p>
鏍?/p>
杞?/p>
涓?/p>
鐨?/p>
鎶?/p>
褰?/p>
銆?/p>
鍥?/p>
3-26
F1x?0F1y?0F1z?F1?6kN
F2y?Fcos45??2kNF2z?0
F2x??F2cos45???2kNF3x?F3343?kN33F3
y??F3343??kN33F3z?F3343?kN
33
3-2
濡傚浘
3-27
鎵�绀猴紝宸茬煡鍏潰浣撳昂瀵镐负
400
mm脳
300
mm脳
300mm
锛?/p>
姝?/p>
闈?/p>
鏈?/p>
鍔?/p>
F1=100N
锛屼腑闂存湁鍔?/p>
F2=200N
锛岄《闈㈡湁
鍔涘伓
M=20N路
m
浣滅敤銆?/p>
璇曟眰鍚勫姏鍙婂姏鍋跺
z
杞?/p>
涔?/p>
鐭?/p>
鐨?/p>
鍜?/p>
銆?/p>
鍥?/p>
3-27
?Mz??F1cos45???F2434??
20
??202?24034?20???m
3-3
濡傚浘
3-28
鎵�绀猴紝姘村钩杞笂
A
鐐逛綔鐢?/p>
涓�鍔?/p>
F=1kN
锛屾柟鍚戜笌杞潰鎴?/p>
a=60掳
鐨勮锛?