£¨6£©Ìá¸ß³ÐÔØÁ¦£¬ÑÓ³¤Ê¹ÓÃÊÙÃü¡£ 25¡¢´ð£ºÍÁ»ù»Øµ¯Ä£Á¿ÖµµÄÈ·¶¨·½·¨ÓУº £¨1£©²é±í·¨£»
£¨2£©ÏÖ³¡Êµ²â·¨£º°üÀ¨ÏÖ³¡³ÐÔØ°å·¨¡¢Íä³ÁÒDzⶨ·¨¡¢½¨Á¢³ÐÔØ°åE0ÓëÍä³ÁÒÇL0¼äµÄ¹Øϵ£»
£¨3£©ÊÒÄÚʵÑé·¨£» £¨4£©»»Ëã·¨¡£ Æß¡¢¼ÆËãÌâ¡£
1¡¢½â£º
3?sina58015/?5.2342?cos45?sin30?sin8.150K?
342?sin45000?227.87?0.94£¼1
241.833?sin53.93002S?0.5??3?sin45?18m 0sin8.27V?5?19?342(KN)
K£¼1£¬Îª²»Îȶ¨Ìå¡£ ÓÖ
h?3 21?r?h?lcosatg??clNf?cl2 K??T0.5?r?h?l?sina=0.94£¼1
40
2¡¢½â£ºÇóNe
ns[(1?r)t?1]?365Ne???
r700?[(1?0.05)30?1]?365?0.2 =
0.05=3395025.1£¨´Î£©
3¡¢½â£ºÇó1d
1d?600?Ne?0.2?Ac?As?Ab?600?3200000?0.2?1?1?1.6?48(0.01mm)
4¡¢½â: W=b.h+mh2=2¡Á1.5+1¡Á1.52=5.25(©O) Q=W.v=5.25¡Á2.8=14.7m3/s 5¡¢½â:
E0?1000??1000???304(1??20P? )?l1I3.14?30(0.05?0.1?0.15?0.2?0.3)(1?0.352) 418?29?45?65?96=65.37£¨MPa£© 6¡¢½â£º
2300[(1?830)15?1]?365Ne??0.5?11397100(´Î)
830?0.2ld?600?Ne?0.2?Ac?Ab?As?600?11397100?1?1?1?23.27(0.01mm)
41
7¡¢½â£º
¢Ù G=1.2¡Á7¡Á23.5=197.4£¨KN£©
Kc?¢Ú
(G?Ey)fEx?(197.4?6.8)?0.43?1.366?[Kc]?1.£¨3Îȶ¨£©
64.29K0?
G?ZG?Ey?Zy197.4?1.47?6.8?1.74??2.53?[K0]?1.£¨5Îȶ¨£©
ExZx64.29?2.518¡¢½â£º ¢Ù
804.35n1?2100()?795.£¨5´Î/ÈÕ£©
100¢Ú
795.5[(1?7.8%)15?1]?365Ne??0.5?3881087£¨´Î£©
0.078¢Û
?0.2ld?Ne?0.2?600?Ac?As?Ab?600?3881087?1?1?1.6
=46£¨0.01mm£©
42