涔犻
chapter one
1.4
鎷変几璇曟牱涓?/p>
A,B
涓ょ偣鐨勮窛绂?/p>
l
绉颁负鏍囪窛銆傚彈鎷夊姏浣滅敤鍚庯紝鐢ㄥ彉褰华閲忓嚭涓ょ偣璺濈鐨勫閲?/p>
涓衡柍
l=5脳
10^
(-2)
mm.
鑻?/p>
l
鐨勫師闀夸负
l=100mm,
璇曟眰
A,B
涓ょ偣闂寸殑骞冲潎搴斿彉蔚
m.
1.5
鍥剧ず涓夎褰㈣杽鏉垮洜鍙楀鍔涗綔鐢ㄨ�屽彉褰紝瑙掔偣
B
鍨傜洿鍚戜笂鐨勪綅绉讳负
0.03mm
锛屼絾
AB
鍜?/p>
BC
浠嶄繚鎸佷负鐩寸嚎銆傝瘯姹傛部
OB
鐨勫钩鍧囧簲鍙橈紝骞舵眰
AB,BC
涓よ竟鍦?/p>
B
鐐圭殑瑙掑害鏀瑰彉銆?/p>
1.6
鍦嗗舰钖勬澘鐨勫崐寰勪负
R
锛屽彉褰㈠悗
R
鐨勫閲忎负鈻?/p>
R
銆傝嫢
R=80mm
锛屸柍
R=3
脳
10
mm
锛岃瘯姹傛部鍗婂緞鏂瑰悜鍜屽鍦嗗渾鍛ㄦ柟鍚戠殑骞冲潎搴斿彉銆?/p>
Chapter two
2.12
鍦ㄥ浘绀虹畝鏄撳悐杞︿腑锛?/p>
BC
涓洪挗鏉嗭紝
AB
涓烘湪鏉嗐�?/p>
鏈ㄦ潌
AB
鐨勬í鎴潰闈㈢Н
A
1
=100cm
2
锛?/p>
璁哥敤
搴斿姏
[
飦?/p>
]
1
=7MPa
锛?/p>
閽㈡潌
BC
鐨勬í鎴潰闈㈢Н
A
2
=6cm
2
锛?/p>
璁哥敤搴斿姏
[
飦?/p>
]
2
=160MPa
銆?/p>
璇曟眰璁稿彲
鍚婇噸
P
銆?/p>
鈭?/p>
锛?/p>
-3
锛?
l
B
A
鈻?/p>
R
R
銆?/p>
C
30
A
P
B
閽?/p>
鏈?/p>
240
O
C
A
B
銆?/p>
45
銆?/p>
45