涓婃捣甯傜浜屽崄灞婂垵涓墿鐞嗙珵璧?/p>
(
澶у悓涓鏉?/p>
)
澶嶈禌璇曢
(2006
骞?/p>
)
璇存槑锛?/p>
1
锛庢湰璇曞嵎鍏辨湁浜斿ぇ棰橈紝绛旈鏃堕棿涓?/p>
120
鍒嗛挓锛岃瘯棰樻弧鍒嗕负
150
鍒?/p>
2
锛?/p>
绛旀鍙婅В绛旇繃绋嬪潎鍐欏湪绛斿嵎绾镐笂銆?/p>
鍏朵腑绗竴
~
绗簩澶ч鍙鍐欏嚭绛旀锛?/p>
涓嶅啓瑙ｇ瓟杩囩▼锛?/p>
绗笁锝炵浜斿ぇ棰樻寜棰樺瀷瑕佹眰鍐欏嚭瀹屾暣鐨勮В绛旇繃绋嬨�傝В绛旇繃绋嬩腑鍙互浣跨敤璁＄畻鍣ㄣ�?/p>
3
锛庤�冭瘯瀹屾瘯鍙氦绛斿嵎绾革紝璇曞嵎鍙互甯﹀洖銆?/p>
4
锛庢湰璇曞嵎涓父鏁?/p>
g
鍙?/p>
lON
锛?/p>
kg
锛屾按鐨勬瘮鐑
4
锛?/p>
2 x 103J
锛?/p>
kg
銆?/p>
涓�銆侀�夋嫨棰?/p>
(
浠ヤ笅姣忛鍙湁涓�涓�夐」绗﹀悎棰樻剰锛屾瘡灏忛
4
鍒嗭紝鍏?/p>
32
鍒?/p>
)
棰樺彿
1
2
3
4
5
6
7
8
绛旀
B
B
C
D
B
C
A
D
1
锛庢湁缁忛獙鐨勫吇铚備汉鏍规嵁铚滆渹鐨勫棥鍡″０灏卞彲浠ョ煡閬撳畠浠槸鍚﹂噰鍒颁簡铚溿�傝繖鏄敱浜庤湝铚傚湪
甯﹁湝鍜屼笉甯﹁湝鏃讹紝缈呰唨鎸姩鍙戝嚭鐨勫０闊充細鏈夊樊寮傦紝杩欑宸紓涓昏鏄紙
锛?/p>
(A)
鍝嶅害
锛?/p>
B)
闊宠皟
(C)
闊宠壊
锛?/p>
D
锛変紶鎾柟鍚?/p>
瑙ｏ細鍥犱负涓嶅甫鑺辫湝鐨勮湝铚傦紝椋炶鏃剁繀鑶�姣忕閽熸尟鍔?/p>
440
娆★紱甯﹁姳铚滄椂鐨勮湝铚傦紝椋炶鏃剁繀
鑶�姣忕閽熸尟鍔?/p>
300
娆★紟鎵�浠ヨ湝铚傚湪涓嶅甫鑺辫湝椋炶鏃舵瘮甯﹁姳铚滈琛屾椂缈呰唨姣忕閽熸尟鍔ㄩ鐜?/p>
澶э紝
鍙戝嚭鐨勯煶璋冮珮锛?/p>
鏈夌粡楠岀殑鍏昏渹浜哄彲浠ラ�氳繃鍚湝铚傞琛屾椂鍙戝嚭澹伴煶鐨勯煶璋冮珮浣庢潵鍒ゆ柇
铚滆渹鏄嚭鍘婚噰铚滆繕鏄噰铚滃洖鏉ワ紟
鏁呴�?/p>
B
锛?/p>
2
锛?/p>
鐜版湁闀垮害鍧囦负
O
锛?/p>
1m
鐨勪袱鏍瑰脊绨?/p>
A
鍜?/p>
B
锛?/p>
宸茬煡寮圭哀
A
鍜?/p>
B
鐨勫姴搴︾郴鏁板垎鍒负
100N
锛?/p>
m
鍜?/p>
200N
锛?/p>
m
銆備负浜嗗埗鎴愪竴涓暱搴︿篃鏄?/p>
O
锛?/p>
1m
锛庡姴搴︾郴鏁板嵈涓?/p>
1
50N
锛?/p>
m
鐨勬柊寮圭哀锛屽彲浠ュ垎鍒湪寮圭哀
A
鍜?/p>
B
涓婃埅鍙栦竴娈碉紝
鐒跺悗灏嗚繖涓ゆ涓茶仈鎴愪竴涓脊绨у嵆鍙�?/p>
鍒欏湪寮圭哀
A
鍜?/p>
B
涓婃埅鍙栫殑闀垮害鍒嗗埆
涓?/p>
( )
(A)0.025m
鍜?/p>
0.075m (B)O.033m
鍜?/p>
0.067m
(C)0.050m
鍜?/p>
O.050m (D)0.075m
鍜?/p>
0.025m
瑙ｇ瓟
:B
涓�鏍?/p>
鍔?/p>
搴︾郴鏁?/p>
涓?/p>
k
鐨?/p>
寮?/p>
绨ф埅涓?/p>
1/n
锛岄偅涔堝畠鐨?/p>
鍔?/p>
搴︾郴鏁板氨
鍙?/p>
鎴?/p>
nk
銆?/p>
鎵�浠ワ細
A
寮?/p>
绨ф埅鍙?/p>
x,
鍒欏姴
搴︾郴鏁?/p>
kA=(0.1/x)*100(N/m)
鍒?/p>
B
寮?/p>
绨ч渶鎴彇
0.1-x,
鍒欏姴
搴︾郴鏁?/p>
kB=[0.1/(0.1-x)]*200(N/m)
璁惧
浜庝覆
鑱?/p>
鐨?/p>
寮?/p>
绨ф柦浠ュぇ灏?/p>
涓?/p>
F
鎷夊姏
鍒?/p>
A
褰?/p>
鍙?/p>
xA=F/kA
B
褰?/p>
鍙?/p>
xB=F/kB
xA+xB=F/kA+F/kB=F/150
绛夊紡涓?/p>
杈?/p>
娑堝幓
F,
浠ｅ叆
kA,kB
寰楀埌涓�涓彧鍏充簬
x
鐨勭瓑寮忥紝
姹備箣锛?/p>
寰?/p>
x=1/30
锛?/p>
涔熷氨鏄?/p>
A
寮?/p>
绨ф埅
鍙?/p>
绾?/p>
0.033m
锛?/p>
B
寮?/p>
绨ф埅鍙?/p>
0.067m
鍗冲彲銆?/p>
3
锛庢湁
A
銆?/p>
B
銆?/p>
C
涓変釜鐢卞悓绉嶆潗鏂欏埗鎴愮殑閲戝睘鐞冿紝瀹冧滑鐨勮川閲忓垎鍒负
128g
銆?/p>
400g
銆?/p>
60g
锛屼綋
绉垎鍒负
16cm3
銆?/p>
50cm3
銆?/p>
12cm3
銆傚垯
( )